2012-03-19 12:57:56 +00:00
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#include <iomanip>
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2021-10-02 07:13:14 +00:00
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#include <base/scope_guard.h>
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2013-01-13 22:13:54 +00:00
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#include <Poco/Net/NetException.h>
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2021-01-28 04:04:07 +00:00
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#include <Poco/Util/LayeredConfiguration.h>
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2018-06-01 19:39:32 +00:00
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#include <Common/CurrentThread.h>
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2017-04-01 09:19:00 +00:00
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#include <Common/Stopwatch.h>
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2018-08-20 02:34:00 +00:00
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#include <Common/NetException.h>
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2018-08-31 00:59:48 +00:00
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#include <Common/setThreadName.h>
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2020-09-14 21:55:43 +00:00
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#include <Common/OpenSSLHelpers.h>
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2017-11-24 13:55:31 +00:00
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#include <IO/Progress.h>
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2018-12-28 18:15:26 +00:00
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#include <Compression/CompressedReadBuffer.h>
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#include <Compression/CompressedWriteBuffer.h>
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2017-04-01 09:19:00 +00:00
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#include <IO/ReadBufferFromPocoSocket.h>
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#include <IO/WriteBufferFromPocoSocket.h>
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2020-12-02 21:05:51 +00:00
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#include <IO/LimitReadBuffer.h>
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2018-09-20 20:51:21 +00:00
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#include <IO/ReadHelpers.h>
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#include <IO/WriteHelpers.h>
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2017-04-01 09:19:00 +00:00
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#include <IO/copyData.h>
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2021-10-08 17:21:19 +00:00
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#include <DataStreams/NativeReader.h>
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#include <DataStreams/NativeWriter.h>
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2017-04-01 09:19:00 +00:00
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#include <Interpreters/executeQuery.h>
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2017-04-17 16:02:48 +00:00
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#include <Interpreters/TablesStatus.h>
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2018-08-14 20:29:42 +00:00
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#include <Interpreters/InternalTextLogsQueue.h>
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2020-11-09 15:07:38 +00:00
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#include <Interpreters/OpenTelemetrySpanLog.h>
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2021-08-01 14:12:34 +00:00
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#include <Interpreters/Session.h>
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2017-04-17 16:02:48 +00:00
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#include <Storages/StorageReplicatedMergeTree.h>
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2020-11-20 17:23:53 +00:00
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#include <Storages/MergeTree/MergeTreeDataPartUUID.h>
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2021-04-12 21:42:52 +00:00
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#include <Storages/StorageS3Cluster.h>
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2018-08-20 02:34:00 +00:00
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#include <Core/ExternalTable.h>
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2021-08-01 14:12:34 +00:00
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#include <Access/Credentials.h>
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2018-11-14 15:23:00 +00:00
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#include <Storages/ColumnDefault.h>
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2018-12-06 11:24:07 +00:00
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#include <DataTypes/DataTypeLowCardinality.h>
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2021-08-30 11:04:59 +00:00
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#include <DataTypes/DataTypeEnum.h>
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2018-12-21 12:17:30 +00:00
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#include <Compression/CompressionFactory.h>
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2021-10-02 07:13:14 +00:00
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#include <base/logger_useful.h>
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2021-10-07 08:26:08 +00:00
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#include <Common/CurrentMetrics.h>
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2021-08-06 22:29:49 +00:00
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#include <fmt/format.h>
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2018-07-09 16:31:24 +00:00
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2020-05-20 19:01:36 +00:00
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#include <Processors/Executors/PullingAsyncPipelineExecutor.h>
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2021-09-02 11:29:20 +00:00
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#include <Processors/Executors/PushingPipelineExecutor.h>
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2021-09-10 14:52:24 +00:00
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#include <Processors/Executors/PushingAsyncPipelineExecutor.h>
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2021-09-15 19:35:48 +00:00
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#include <Processors/Executors/CompletedPipelineExecutor.h>
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2021-09-03 17:29:36 +00:00
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#include <Processors/Sinks/SinkToStorage.h>
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2019-03-26 18:28:37 +00:00
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2021-03-16 18:41:29 +00:00
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#include "Core/Protocol.h"
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2012-03-09 15:46:52 +00:00
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#include "TCPHandler.h"
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2020-04-16 12:31:57 +00:00
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#if !defined(ARCADIA_BUILD)
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# include <Common/config_version.h>
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#endif
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2021-10-07 08:26:08 +00:00
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namespace CurrentMetrics
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{
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extern const Metric QueryThread;
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}
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2018-02-16 20:53:47 +00:00
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2012-03-09 15:46:52 +00:00
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namespace DB
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{
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2016-01-11 21:46:36 +00:00
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namespace ErrorCodes
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{
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2020-02-25 18:02:41 +00:00
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extern const int LOGICAL_ERROR;
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extern const int ATTEMPT_TO_READ_AFTER_EOF;
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2017-04-01 07:20:54 +00:00
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extern const int CLIENT_HAS_CONNECTED_TO_WRONG_PORT;
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extern const int UNKNOWN_EXCEPTION;
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extern const int UNKNOWN_PACKET_FROM_CLIENT;
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extern const int POCO_EXCEPTION;
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extern const int SOCKET_TIMEOUT;
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extern const int UNEXPECTED_PACKET_FROM_CLIENT;
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2020-09-14 21:55:43 +00:00
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extern const int SUPPORT_IS_DISABLED;
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2021-04-12 17:48:16 +00:00
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extern const int UNKNOWN_PROTOCOL;
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2016-01-11 21:46:36 +00:00
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}
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2021-01-28 04:04:07 +00:00
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TCPHandler::TCPHandler(IServer & server_, const Poco::Net::StreamSocket & socket_, bool parse_proxy_protocol_, std::string server_display_name_)
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: Poco::Net::TCPServerConnection(socket_)
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, server(server_)
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, parse_proxy_protocol(parse_proxy_protocol_)
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, log(&Poco::Logger::get("TCPHandler"))
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, server_display_name(std::move(server_display_name_))
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{
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}
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2021-03-05 14:57:16 +00:00
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2021-01-28 04:07:51 +00:00
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TCPHandler::~TCPHandler()
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{
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try
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{
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state.reset();
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2021-04-04 09:59:51 +00:00
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if (out)
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out->next();
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2021-01-28 04:07:51 +00:00
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}
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catch (...)
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{
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tryLogCurrentException(__PRETTY_FUNCTION__);
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}
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}
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2012-03-09 15:46:52 +00:00
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void TCPHandler::runImpl()
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{
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2018-08-31 00:59:48 +00:00
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setThreadName("TCPHandler");
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2019-01-15 18:39:54 +00:00
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ThreadStatus thread_status;
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2018-08-31 00:59:48 +00:00
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2021-03-05 14:57:16 +00:00
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session = std::make_unique<Session>(server.context(), ClientInfo::Interface::TCP);
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2021-08-01 14:12:34 +00:00
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extractConnectionSettingsFromContext(server.context());
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2019-07-30 22:22:45 +00:00
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2021-08-01 14:12:34 +00:00
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socket().setReceiveTimeout(receive_timeout);
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socket().setSendTimeout(send_timeout);
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2017-04-01 07:20:54 +00:00
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socket().setNoDelay(true);
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in = std::make_shared<ReadBufferFromPocoSocket>(socket());
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out = std::make_shared<WriteBufferFromPocoSocket>(socket());
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2020-12-02 21:05:51 +00:00
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/// Support for PROXY protocol
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if (parse_proxy_protocol && !receiveProxyHeader())
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return;
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2017-04-01 07:20:54 +00:00
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if (in->eof())
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{
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2020-12-11 10:51:48 +00:00
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LOG_INFO(log, "Client has not sent any data.");
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2017-04-01 07:20:54 +00:00
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return;
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}
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2019-07-30 22:22:45 +00:00
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/// User will be authenticated here. It will also set settings from user profile into connection_context.
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2017-04-01 07:20:54 +00:00
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try
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{
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receiveHello();
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2021-09-21 18:07:52 +00:00
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sendHello();
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if (!is_interserver_mode) /// In interserver mode queries are executed without a session context.
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{
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session->makeSessionContext();
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/// If session created, then settings in session context has been updated.
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/// So it's better to update the connection settings for flexibility.
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extractConnectionSettingsFromContext(session->sessionContext());
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/// When connecting, the default database could be specified.
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if (!default_database.empty())
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session->sessionContext()->setCurrentDatabase(default_database);
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}
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2017-04-01 07:20:54 +00:00
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}
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catch (const Exception & e) /// Typical for an incorrect username, password, or address.
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{
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if (e.code() == ErrorCodes::CLIENT_HAS_CONNECTED_TO_WRONG_PORT)
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{
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LOG_DEBUG(log, "Client has connected to wrong port.");
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return;
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}
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if (e.code() == ErrorCodes::ATTEMPT_TO_READ_AFTER_EOF)
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{
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2020-12-11 10:51:48 +00:00
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LOG_INFO(log, "Client has gone away.");
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2017-04-01 07:20:54 +00:00
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return;
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}
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try
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{
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2017-04-17 16:02:48 +00:00
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/// We try to send error information to the client.
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2021-08-01 14:12:34 +00:00
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sendException(e, send_exception_with_stack_trace);
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2017-04-01 07:20:54 +00:00
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}
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catch (...) {}
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throw;
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}
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2020-03-08 21:29:00 +00:00
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while (true)
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2017-04-01 07:20:54 +00:00
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{
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2019-07-04 22:57:26 +00:00
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/// We are waiting for a packet from the client. Thus, every `poll_interval` seconds check whether we need to shut down.
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2019-07-04 22:23:45 +00:00
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{
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Stopwatch idle_time;
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2021-03-03 20:40:43 +00:00
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UInt64 timeout_ms = std::min(poll_interval, idle_connection_timeout) * 1000000;
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while (!server.isCancelled() && !static_cast<ReadBufferFromPocoSocket &>(*in).poll(timeout_ms))
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2019-07-04 22:23:45 +00:00
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{
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2021-03-03 20:40:43 +00:00
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if (idle_time.elapsedSeconds() > idle_connection_timeout)
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2019-07-04 23:03:20 +00:00
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{
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LOG_TRACE(log, "Closing idle connection");
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2019-07-04 22:23:45 +00:00
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return;
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2019-07-04 23:03:20 +00:00
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}
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2019-07-04 22:23:45 +00:00
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}
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}
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2017-04-01 07:20:54 +00:00
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2017-04-17 16:02:48 +00:00
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/// If we need to shut down, or client disconnects.
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2017-08-09 14:33:07 +00:00
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if (server.isCancelled() || in->eof())
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2017-04-01 07:20:54 +00:00
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break;
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Stopwatch watch;
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state.reset();
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2018-09-07 23:22:02 +00:00
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/// Initialized later.
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std::optional<CurrentThread::QueryScope> query_scope;
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2017-04-01 07:20:54 +00:00
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/** An exception during the execution of request (it must be sent over the network to the client).
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2017-04-17 16:02:48 +00:00
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* The client will be able to accept it, if it did not happen while sending another packet and the client has not disconnected yet.
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*/
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2020-01-02 06:56:53 +00:00
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std::optional<DB::Exception> exception;
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2018-04-04 12:11:38 +00:00
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bool network_error = false;
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2017-04-01 07:20:54 +00:00
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try
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{
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2018-03-28 14:07:28 +00:00
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/// If a user passed query-local timeouts, reset socket to initial state at the end of the query
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SCOPE_EXIT({state.timeout_setter.reset();});
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2017-04-17 16:02:48 +00:00
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/** If Query - process it. If Ping or Cancel - go back to the beginning.
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* There may come settings for a separate query that modify `query_context`.
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2020-11-20 17:23:53 +00:00
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* It's possible to receive part uuids packet before the query, so then receivePacket has to be called twice.
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2017-04-17 16:02:48 +00:00
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*/
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2017-04-01 07:20:54 +00:00
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if (!receivePacket())
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continue;
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2020-11-20 17:23:53 +00:00
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/** If part_uuids got received in previous packet, trying to read again.
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*/
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2021-08-01 14:12:34 +00:00
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if (state.empty() && state.part_uuids_to_ignore && !receivePacket())
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2020-11-20 17:23:53 +00:00
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continue;
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2021-04-10 23:33:54 +00:00
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query_scope.emplace(query_context);
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2018-06-01 19:39:32 +00:00
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2021-08-01 14:12:34 +00:00
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/// If query received, then settings in query_context has been updated.
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/// So it's better to update the connection settings for flexibility.
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extractConnectionSettingsFromContext(query_context);
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/// Sync timeouts on client and server during current query to avoid dangling queries on server
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/// NOTE: We use send_timeout for the receive timeout and vice versa (change arguments ordering in TimeoutSetter),
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/// because send_timeout is client-side setting which has opposite meaning on the server side.
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/// NOTE: these settings are applied only for current connection (not for distributed tables' connections)
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state.timeout_setter = std::make_unique<TimeoutSetter>(socket(), receive_timeout, send_timeout);
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2018-08-24 07:30:53 +00:00
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2021-10-05 18:19:05 +00:00
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std::mutex fatal_error_mutex;
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2018-06-06 20:57:07 +00:00
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/// Should we send internal logs to client?
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2019-07-10 12:19:17 +00:00
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const auto client_logs_level = query_context->getSettingsRef().send_logs_level;
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2020-09-17 12:15:05 +00:00
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if (client_tcp_protocol_version >= DBMS_MIN_REVISION_WITH_SERVER_LOGS
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2019-08-09 13:02:01 +00:00
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&& client_logs_level != LogsLevel::none)
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2018-06-06 20:57:07 +00:00
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{
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2018-06-15 17:32:35 +00:00
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state.logs_queue = std::make_shared<InternalTextLogsQueue>();
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2019-07-10 12:19:17 +00:00
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state.logs_queue->max_priority = Poco::Logger::parseLevel(client_logs_level.toString());
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2019-08-09 13:02:01 +00:00
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CurrentThread::attachInternalTextLogsQueue(state.logs_queue, client_logs_level);
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2021-10-05 18:19:05 +00:00
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CurrentThread::setFatalErrorCallback([this, &fatal_error_mutex]
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{
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std::lock_guard lock(fatal_error_mutex);
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sendLogs();
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});
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2018-06-06 20:57:07 +00:00
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}
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2021-08-01 14:12:34 +00:00
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query_context->setExternalTablesInitializer([this] (ContextPtr context)
|
2018-08-24 00:07:25 +00:00
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{
|
2021-04-10 23:33:54 +00:00
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if (context != query_context)
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2018-06-01 15:32:27 +00:00
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throw Exception("Unexpected context in external tables initializer", ErrorCodes::LOGICAL_ERROR);
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/// Get blocks of temporary tables
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2021-08-01 14:12:34 +00:00
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readData();
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2018-06-01 15:32:27 +00:00
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/// Reset the input stream, as we received an empty block while receiving external table data.
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/// So, the stream has been marked as cancelled and we can't read from it anymore.
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state.block_in.reset();
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2018-11-26 00:56:50 +00:00
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state.maybe_compressed_in.reset(); /// For more accurate accounting by MemoryTracker.
|
2018-06-01 15:32:27 +00:00
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});
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2017-04-01 07:20:54 +00:00
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2019-05-28 18:30:10 +00:00
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/// Send structure of columns to client for function input()
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2021-04-10 23:33:54 +00:00
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query_context->setInputInitializer([this] (ContextPtr context, const StoragePtr & input_storage)
|
2019-05-28 18:30:10 +00:00
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{
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2021-04-10 23:33:54 +00:00
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if (context != query_context)
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2019-05-28 18:30:10 +00:00
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throw Exception("Unexpected context in Input initializer", ErrorCodes::LOGICAL_ERROR);
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|
2020-06-17 16:39:58 +00:00
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auto metadata_snapshot = input_storage->getInMemoryMetadataPtr();
|
2019-05-28 18:30:10 +00:00
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state.need_receive_data_for_input = true;
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/// Send ColumnsDescription for input storage.
|
2020-09-17 12:15:05 +00:00
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|
|
if (client_tcp_protocol_version >= DBMS_MIN_REVISION_WITH_COLUMN_DEFAULTS_METADATA
|
2019-05-28 18:30:10 +00:00
|
|
|
&& query_context->getSettingsRef().input_format_defaults_for_omitted_fields)
|
|
|
|
{
|
2020-06-17 16:39:58 +00:00
|
|
|
sendTableColumns(metadata_snapshot->getColumns());
|
2019-05-28 18:30:10 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/// Send block to the client - input storage structure.
|
2020-06-17 16:39:58 +00:00
|
|
|
state.input_header = metadata_snapshot->getSampleBlock();
|
2019-05-28 18:30:10 +00:00
|
|
|
sendData(state.input_header);
|
|
|
|
});
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
query_context->setInputBlocksReaderCallback([this] (ContextPtr context) -> Block
|
2019-05-28 18:30:10 +00:00
|
|
|
{
|
2021-04-10 23:33:54 +00:00
|
|
|
if (context != query_context)
|
2019-05-28 18:30:10 +00:00
|
|
|
throw Exception("Unexpected context in InputBlocksReader", ErrorCodes::LOGICAL_ERROR);
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
if (!readDataNext())
|
2019-05-28 18:30:10 +00:00
|
|
|
{
|
|
|
|
state.block_in.reset();
|
|
|
|
state.maybe_compressed_in.reset();
|
|
|
|
return Block();
|
2019-05-28 20:16:24 +00:00
|
|
|
}
|
2019-05-28 18:30:10 +00:00
|
|
|
return state.block_for_input;
|
|
|
|
});
|
|
|
|
|
2021-04-10 23:33:54 +00:00
|
|
|
customizeContext(query_context);
|
2019-03-06 16:41:35 +00:00
|
|
|
|
2021-04-12 17:07:01 +00:00
|
|
|
/// This callback is needed for requesting read tasks inside pipeline for distributed processing
|
2021-04-13 10:59:02 +00:00
|
|
|
query_context->setReadTaskCallback([this]() -> String
|
2021-04-06 11:05:47 +00:00
|
|
|
{
|
2021-04-08 19:00:39 +00:00
|
|
|
std::lock_guard lock(task_callback_mutex);
|
2021-04-10 02:21:18 +00:00
|
|
|
sendReadTaskRequestAssumeLocked();
|
2021-04-06 11:05:47 +00:00
|
|
|
return receiveReadTaskResponseAssumeLocked();
|
|
|
|
});
|
|
|
|
|
2017-04-17 16:02:48 +00:00
|
|
|
/// Processing Query
|
2021-04-14 17:16:05 +00:00
|
|
|
state.io = executeQuery(state.query, query_context, false, state.stage);
|
2017-04-01 07:20:54 +00:00
|
|
|
|
|
|
|
after_check_cancelled.restart();
|
|
|
|
after_send_progress.restart();
|
|
|
|
|
2021-09-15 19:35:48 +00:00
|
|
|
if (state.io.pipeline.pushing())
|
2021-06-28 20:43:37 +00:00
|
|
|
/// FIXME: check explicitly that insert query suggests to receive data via native protocol,
|
2020-10-10 01:43:07 +00:00
|
|
|
{
|
|
|
|
state.need_receive_data_for_insert = true;
|
2021-08-01 14:12:34 +00:00
|
|
|
processInsertQuery();
|
2020-10-10 01:43:07 +00:00
|
|
|
}
|
2021-09-16 17:40:42 +00:00
|
|
|
else if (state.io.pipeline.pulling())
|
|
|
|
{
|
|
|
|
processOrdinaryQueryWithProcessors();
|
|
|
|
}
|
2021-09-17 11:40:03 +00:00
|
|
|
else if (state.io.pipeline.completed())
|
2019-05-28 18:30:10 +00:00
|
|
|
{
|
2021-09-15 19:35:48 +00:00
|
|
|
CompletedPipelineExecutor executor(state.io.pipeline);
|
2021-09-22 10:57:00 +00:00
|
|
|
/// Should not check for cancel in case of input.
|
|
|
|
if (!state.need_receive_data_for_input)
|
2021-09-22 13:29:58 +00:00
|
|
|
{
|
2021-10-05 18:19:05 +00:00
|
|
|
auto callback = [this, &fatal_error_mutex]()
|
2021-09-22 13:29:58 +00:00
|
|
|
{
|
2021-10-05 18:19:05 +00:00
|
|
|
std::lock_guard lock(fatal_error_mutex);
|
|
|
|
|
2021-09-22 13:29:58 +00:00
|
|
|
if (isQueryCancelled())
|
|
|
|
return true;
|
|
|
|
|
|
|
|
sendProgress();
|
|
|
|
sendLogs();
|
|
|
|
|
|
|
|
return false;
|
|
|
|
};
|
|
|
|
|
|
|
|
executor.setCancelCallback(callback, interactive_delay / 1000);
|
|
|
|
}
|
2021-09-15 19:35:48 +00:00
|
|
|
executor.execute();
|
2019-05-28 18:30:10 +00:00
|
|
|
}
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2020-10-10 09:24:12 +00:00
|
|
|
state.io.onFinish();
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2018-09-26 21:19:49 +00:00
|
|
|
/// Do it before sending end of stream, to have a chance to show log message in client.
|
|
|
|
query_scope->logPeakMemoryUsage();
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2020-10-24 03:41:47 +00:00
|
|
|
if (state.is_connection_closed)
|
|
|
|
break;
|
|
|
|
|
2018-09-26 21:19:49 +00:00
|
|
|
sendLogs();
|
2018-06-06 20:57:07 +00:00
|
|
|
sendEndOfStream();
|
2018-09-07 23:22:02 +00:00
|
|
|
|
2020-05-18 18:13:56 +00:00
|
|
|
/// QueryState should be cleared before QueryScope, since otherwise
|
|
|
|
/// the MemoryTracker will be wrong for possible deallocations.
|
|
|
|
/// (i.e. deallocations from the Aggregator with two-level aggregation)
|
2017-04-01 07:20:54 +00:00
|
|
|
state.reset();
|
2020-05-18 18:13:56 +00:00
|
|
|
query_scope.reset();
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
|
|
|
catch (const Exception & e)
|
|
|
|
{
|
|
|
|
state.io.onException();
|
2020-01-02 06:56:53 +00:00
|
|
|
exception.emplace(e);
|
2017-04-01 07:20:54 +00:00
|
|
|
|
|
|
|
if (e.code() == ErrorCodes::UNKNOWN_PACKET_FROM_CLIENT)
|
|
|
|
throw;
|
2018-04-04 12:11:38 +00:00
|
|
|
|
2020-08-27 00:00:43 +00:00
|
|
|
/// If there is UNEXPECTED_PACKET_FROM_CLIENT emulate network_error
|
|
|
|
/// to break the loop, but do not throw to send the exception to
|
|
|
|
/// the client.
|
|
|
|
if (e.code() == ErrorCodes::UNEXPECTED_PACKET_FROM_CLIENT)
|
|
|
|
network_error = true;
|
|
|
|
|
2018-04-04 12:11:38 +00:00
|
|
|
/// If a timeout occurred, try to inform client about it and close the session
|
|
|
|
if (e.code() == ErrorCodes::SOCKET_TIMEOUT)
|
|
|
|
network_error = true;
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
|
|
|
catch (const Poco::Net::NetException & e)
|
|
|
|
{
|
2017-04-17 16:02:48 +00:00
|
|
|
/** We can get here if there was an error during connection to the client,
|
|
|
|
* or in connection with a remote server that was used to process the request.
|
|
|
|
* It is not possible to distinguish between these two cases.
|
|
|
|
* Although in one of them, we have to send exception to the client, but in the other - we can not.
|
|
|
|
* We will try to send exception to the client in any case - see below.
|
|
|
|
*/
|
2017-04-01 07:20:54 +00:00
|
|
|
state.io.onException();
|
2020-06-04 17:49:14 +00:00
|
|
|
exception.emplace(Exception::CreateFromPocoTag{}, e);
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
|
|
|
catch (const Poco::Exception & e)
|
|
|
|
{
|
|
|
|
state.io.onException();
|
2020-06-04 17:49:14 +00:00
|
|
|
exception.emplace(Exception::CreateFromPocoTag{}, e);
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
2020-07-17 14:25:13 +00:00
|
|
|
// Server should die on std logic errors in debug, like with assert()
|
|
|
|
// or ErrorCodes::LOGICAL_ERROR. This helps catch these errors in
|
|
|
|
// tests.
|
|
|
|
#ifndef NDEBUG
|
2020-07-15 12:08:01 +00:00
|
|
|
catch (const std::logic_error & e)
|
|
|
|
{
|
2020-07-17 14:20:33 +00:00
|
|
|
state.io.onException();
|
|
|
|
exception.emplace(Exception::CreateFromSTDTag{}, e);
|
|
|
|
sendException(*exception, send_exception_with_stack_trace);
|
2020-07-17 14:25:13 +00:00
|
|
|
std::abort();
|
2020-07-15 12:08:01 +00:00
|
|
|
}
|
2020-07-17 14:25:13 +00:00
|
|
|
#endif
|
2017-04-01 07:20:54 +00:00
|
|
|
catch (const std::exception & e)
|
|
|
|
{
|
|
|
|
state.io.onException();
|
2020-06-04 17:49:14 +00:00
|
|
|
exception.emplace(Exception::CreateFromSTDTag{}, e);
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
state.io.onException();
|
2020-01-02 06:56:53 +00:00
|
|
|
exception.emplace("Unknown exception", ErrorCodes::UNKNOWN_EXCEPTION);
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
try
|
|
|
|
{
|
|
|
|
if (exception)
|
2018-06-06 20:57:07 +00:00
|
|
|
{
|
2018-06-09 15:52:59 +00:00
|
|
|
try
|
|
|
|
{
|
|
|
|
/// Try to send logs to client, but it could be risky too
|
|
|
|
/// Assume that we can't break output here
|
|
|
|
sendLogs();
|
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
tryLogCurrentException(log, "Can't send logs to client");
|
|
|
|
}
|
|
|
|
|
2020-08-26 22:43:47 +00:00
|
|
|
const auto & e = *exception;
|
2021-07-10 10:30:38 +00:00
|
|
|
LOG_ERROR(log, getExceptionMessage(e, true));
|
2018-08-24 07:30:53 +00:00
|
|
|
sendException(*exception, send_exception_with_stack_trace);
|
2018-06-06 20:57:07 +00:00
|
|
|
}
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
2017-04-17 16:02:48 +00:00
|
|
|
/** Could not send exception information to the client. */
|
2017-04-01 07:20:54 +00:00
|
|
|
network_error = true;
|
|
|
|
LOG_WARNING(log, "Client has gone away.");
|
|
|
|
}
|
|
|
|
|
2019-12-07 23:41:51 +00:00
|
|
|
try
|
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
/// A query packet is always followed by one or more data packets.
|
|
|
|
/// If some of those data packets are left, try to skip them.
|
|
|
|
if (exception && !state.empty() && !state.read_all_data)
|
|
|
|
skipData();
|
2019-12-07 23:41:51 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
network_error = true;
|
2021-08-01 14:12:34 +00:00
|
|
|
LOG_WARNING(log, "Can't skip data packets after query failure.");
|
2019-12-07 23:41:51 +00:00
|
|
|
}
|
|
|
|
|
2017-04-01 07:20:54 +00:00
|
|
|
try
|
|
|
|
{
|
2020-05-18 18:13:56 +00:00
|
|
|
/// QueryState should be cleared before QueryScope, since otherwise
|
|
|
|
/// the MemoryTracker will be wrong for possible deallocations.
|
|
|
|
/// (i.e. deallocations from the Aggregator with two-level aggregation)
|
2017-04-01 07:20:54 +00:00
|
|
|
state.reset();
|
2020-05-18 18:13:56 +00:00
|
|
|
query_scope.reset();
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
|
|
|
catch (...)
|
|
|
|
{
|
2017-04-17 16:02:48 +00:00
|
|
|
/** During the processing of request, there was an exception that we caught and possibly sent to client.
|
|
|
|
* When destroying the request pipeline execution there was a second exception.
|
|
|
|
* For example, a pipeline could run in multiple threads, and an exception could occur in each of them.
|
|
|
|
* Ignore it.
|
|
|
|
*/
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
watch.stop();
|
|
|
|
|
2020-10-10 17:47:34 +00:00
|
|
|
LOG_DEBUG(log, "Processed in {} sec.", watch.elapsedSeconds());
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2019-03-06 21:32:26 +00:00
|
|
|
/// It is important to destroy query context here. We do not want it to live arbitrarily longer than the query.
|
|
|
|
query_context.reset();
|
|
|
|
|
2017-04-01 07:20:54 +00:00
|
|
|
if (network_error)
|
|
|
|
break;
|
|
|
|
}
|
2012-03-11 08:52:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
void TCPHandler::extractConnectionSettingsFromContext(const ContextPtr & context)
|
|
|
|
{
|
|
|
|
const auto & settings = context->getSettingsRef();
|
|
|
|
send_exception_with_stack_trace = settings.calculate_text_stack_trace;
|
|
|
|
send_timeout = settings.send_timeout;
|
|
|
|
receive_timeout = settings.receive_timeout;
|
|
|
|
poll_interval = settings.poll_interval;
|
|
|
|
idle_connection_timeout = settings.idle_connection_timeout;
|
|
|
|
interactive_delay = settings.interactive_delay;
|
|
|
|
sleep_in_send_tables_status = settings.sleep_in_send_tables_status_ms;
|
|
|
|
unknown_packet_in_send_data = settings.unknown_packet_in_send_data;
|
|
|
|
sleep_in_receive_cancel = settings.sleep_in_receive_cancel_ms;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
bool TCPHandler::readDataNext()
|
2019-05-28 18:30:10 +00:00
|
|
|
{
|
|
|
|
Stopwatch watch(CLOCK_MONOTONIC_COARSE);
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
/// Poll interval should not be greater than receive_timeout
|
|
|
|
constexpr UInt64 min_timeout_ms = 5000; // 5 ms
|
|
|
|
UInt64 timeout_ms = std::max(min_timeout_ms, std::min(poll_interval * 1000000, static_cast<UInt64>(receive_timeout.totalMicroseconds())));
|
|
|
|
bool read_ok = false;
|
|
|
|
|
2019-05-28 18:30:10 +00:00
|
|
|
/// We are waiting for a packet from the client. Thus, every `POLL_INTERVAL` seconds check whether we need to shut down.
|
|
|
|
while (true)
|
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
if (static_cast<ReadBufferFromPocoSocket &>(*in).poll(timeout_ms))
|
|
|
|
{
|
|
|
|
/// If client disconnected.
|
|
|
|
if (in->eof())
|
|
|
|
{
|
|
|
|
LOG_INFO(log, "Client has dropped the connection, cancel the query.");
|
|
|
|
state.is_connection_closed = true;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// We accept and process data.
|
|
|
|
read_ok = receivePacket();
|
2021-04-06 19:18:45 +00:00
|
|
|
break;
|
2021-08-01 14:12:34 +00:00
|
|
|
}
|
2019-05-28 18:30:10 +00:00
|
|
|
|
|
|
|
/// Do we need to shut down?
|
|
|
|
if (server.isCancelled())
|
2021-08-01 14:12:34 +00:00
|
|
|
break;
|
2019-05-28 18:30:10 +00:00
|
|
|
|
|
|
|
/** Have we waited for data for too long?
|
|
|
|
* If we periodically poll, the receive_timeout of the socket itself does not work.
|
|
|
|
* Therefore, an additional check is added.
|
|
|
|
*/
|
2021-04-29 16:11:20 +00:00
|
|
|
Float64 elapsed = watch.elapsedSeconds();
|
2021-08-01 14:12:34 +00:00
|
|
|
if (elapsed > static_cast<Float64>(receive_timeout.totalSeconds()))
|
2019-05-28 18:30:10 +00:00
|
|
|
{
|
2020-11-10 18:22:26 +00:00
|
|
|
throw Exception(ErrorCodes::SOCKET_TIMEOUT,
|
|
|
|
"Timeout exceeded while receiving data from client. Waited for {} seconds, timeout is {} seconds.",
|
2021-08-01 14:12:34 +00:00
|
|
|
static_cast<size_t>(elapsed), receive_timeout.totalSeconds());
|
2019-05-28 18:30:10 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
if (read_ok)
|
|
|
|
sendLogs();
|
|
|
|
else
|
|
|
|
state.read_all_data = true;
|
2019-05-28 18:30:10 +00:00
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
return read_ok;
|
2019-05-28 18:30:10 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
void TCPHandler::readData()
|
2012-05-21 06:49:05 +00:00
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
sendLogs();
|
2018-04-04 12:11:38 +00:00
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
while (readDataNext())
|
|
|
|
;
|
2019-05-28 18:30:10 +00:00
|
|
|
}
|
2017-04-01 07:20:54 +00:00
|
|
|
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
void TCPHandler::skipData()
|
2019-05-28 18:30:10 +00:00
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
state.skipping_data = true;
|
|
|
|
SCOPE_EXIT({ state.skipping_data = false; });
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
while (readDataNext())
|
2020-10-24 03:41:47 +00:00
|
|
|
;
|
2014-03-04 15:31:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
void TCPHandler::processInsertQuery()
|
2014-03-04 15:31:56 +00:00
|
|
|
{
|
2021-09-15 19:35:48 +00:00
|
|
|
size_t num_threads = state.io.pipeline.getNumThreads();
|
2021-09-10 14:52:24 +00:00
|
|
|
|
|
|
|
auto send_table_columns = [&]()
|
2018-11-15 15:03:13 +00:00
|
|
|
{
|
2021-09-10 14:52:24 +00:00
|
|
|
/// Send ColumnsDescription for insertion table
|
|
|
|
if (client_tcp_protocol_version >= DBMS_MIN_REVISION_WITH_COLUMN_DEFAULTS_METADATA)
|
2019-07-17 18:30:17 +00:00
|
|
|
{
|
2021-09-10 14:52:24 +00:00
|
|
|
const auto & table_id = query_context->getInsertionTable();
|
|
|
|
if (query_context->getSettingsRef().input_format_defaults_for_omitted_fields)
|
2020-06-17 16:39:58 +00:00
|
|
|
{
|
2021-09-10 14:52:24 +00:00
|
|
|
if (!table_id.empty())
|
|
|
|
{
|
|
|
|
auto storage_ptr = DatabaseCatalog::instance().getTable(table_id, query_context);
|
|
|
|
sendTableColumns(storage_ptr->getInMemoryMetadataPtr()->getColumns());
|
|
|
|
}
|
2020-06-17 16:39:58 +00:00
|
|
|
}
|
2019-07-17 18:30:17 +00:00
|
|
|
}
|
2021-09-10 14:52:24 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
if (num_threads > 1)
|
|
|
|
{
|
2021-09-15 19:35:48 +00:00
|
|
|
PushingAsyncPipelineExecutor executor(state.io.pipeline);
|
2021-09-10 14:52:24 +00:00
|
|
|
/** Made above the rest of the lines, so that in case of `writePrefix` function throws an exception,
|
|
|
|
* client receive exception before sending data.
|
|
|
|
*/
|
|
|
|
executor.start();
|
|
|
|
|
|
|
|
send_table_columns();
|
|
|
|
|
|
|
|
/// Send block to the client - table structure.
|
|
|
|
sendData(executor.getHeader());
|
|
|
|
|
|
|
|
sendLogs();
|
|
|
|
|
|
|
|
while (readDataNext())
|
|
|
|
executor.push(std::move(state.block_for_insert));
|
|
|
|
|
|
|
|
executor.finish();
|
2018-11-15 15:03:13 +00:00
|
|
|
}
|
2021-09-10 14:52:24 +00:00
|
|
|
else
|
|
|
|
{
|
2021-09-15 19:35:48 +00:00
|
|
|
PushingPipelineExecutor executor(state.io.pipeline);
|
2021-09-10 14:52:24 +00:00
|
|
|
executor.start();
|
2018-11-14 15:23:00 +00:00
|
|
|
|
2021-09-10 14:52:24 +00:00
|
|
|
send_table_columns();
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2021-09-10 14:52:24 +00:00
|
|
|
sendData(executor.getHeader());
|
2021-09-02 11:29:20 +00:00
|
|
|
|
2021-09-10 14:52:24 +00:00
|
|
|
sendLogs();
|
2021-09-02 11:29:20 +00:00
|
|
|
|
2021-09-10 14:52:24 +00:00
|
|
|
while (readDataNext())
|
|
|
|
executor.push(std::move(state.block_for_insert));
|
|
|
|
|
|
|
|
executor.finish();
|
|
|
|
}
|
2012-05-21 06:49:05 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2020-03-15 21:22:55 +00:00
|
|
|
void TCPHandler::processOrdinaryQueryWithProcessors()
|
2019-03-26 18:28:37 +00:00
|
|
|
{
|
|
|
|
auto & pipeline = state.io.pipeline;
|
|
|
|
|
2021-02-05 10:15:02 +00:00
|
|
|
if (query_context->getSettingsRef().allow_experimental_query_deduplication)
|
|
|
|
sendPartUUIDs();
|
2020-11-20 17:23:53 +00:00
|
|
|
|
2019-03-26 18:28:37 +00:00
|
|
|
/// Send header-block, to allow client to prepare output format for data to send.
|
|
|
|
{
|
2020-05-14 21:03:38 +00:00
|
|
|
const auto & header = pipeline.getHeader();
|
2019-03-26 18:28:37 +00:00
|
|
|
|
|
|
|
if (header)
|
|
|
|
sendData(header);
|
|
|
|
}
|
|
|
|
|
|
|
|
{
|
2020-05-20 19:01:36 +00:00
|
|
|
PullingAsyncPipelineExecutor executor(pipeline);
|
2020-05-14 21:03:38 +00:00
|
|
|
CurrentMetrics::Increment query_thread_metric_increment{CurrentMetrics::QueryThread};
|
2019-07-09 12:46:50 +00:00
|
|
|
|
2020-05-14 21:03:38 +00:00
|
|
|
Block block;
|
2021-08-01 14:12:34 +00:00
|
|
|
while (executor.pull(block, interactive_delay / 1000))
|
2019-03-26 18:28:37 +00:00
|
|
|
{
|
2021-04-10 02:21:18 +00:00
|
|
|
std::lock_guard lock(task_callback_mutex);
|
|
|
|
|
2020-01-23 10:04:18 +00:00
|
|
|
if (isQueryCancelled())
|
2019-03-26 18:28:37 +00:00
|
|
|
{
|
2020-01-23 10:04:18 +00:00
|
|
|
/// A packet was received requesting to stop execution of the request.
|
2020-05-14 21:03:38 +00:00
|
|
|
executor.cancel();
|
2020-01-23 10:04:18 +00:00
|
|
|
break;
|
|
|
|
}
|
2019-03-26 18:28:37 +00:00
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
if (after_send_progress.elapsed() / 1000 >= interactive_delay)
|
2020-01-23 10:04:18 +00:00
|
|
|
{
|
|
|
|
/// Some time passed and there is a progress.
|
|
|
|
after_send_progress.restart();
|
|
|
|
sendProgress();
|
2021-08-30 15:35:25 +00:00
|
|
|
sendProfileEvents();
|
2020-01-23 10:04:18 +00:00
|
|
|
}
|
2019-03-26 18:28:37 +00:00
|
|
|
|
2020-01-23 10:04:18 +00:00
|
|
|
sendLogs();
|
2019-04-05 10:52:07 +00:00
|
|
|
|
2020-05-14 21:03:38 +00:00
|
|
|
if (block)
|
2020-01-23 10:04:18 +00:00
|
|
|
{
|
|
|
|
if (!state.io.null_format)
|
|
|
|
sendData(block);
|
2019-03-26 18:28:37 +00:00
|
|
|
}
|
2020-01-23 10:04:18 +00:00
|
|
|
}
|
2019-03-26 18:28:37 +00:00
|
|
|
|
2020-01-23 10:04:18 +00:00
|
|
|
/** If data has run out, we will send the profiling data and total values to
|
|
|
|
* the last zero block to be able to use
|
|
|
|
* this information in the suffix output of stream.
|
|
|
|
* If the request was interrupted, then `sendTotals` and other methods could not be called,
|
|
|
|
* because we have not read all the data yet,
|
|
|
|
* and there could be ongoing calculations in other threads at the same time.
|
|
|
|
*/
|
|
|
|
if (!isQueryCancelled())
|
|
|
|
{
|
2020-05-14 21:03:38 +00:00
|
|
|
sendTotals(executor.getTotalsBlock());
|
|
|
|
sendExtremes(executor.getExtremesBlock());
|
|
|
|
sendProfileInfo(executor.getProfileInfo());
|
2020-01-23 10:04:18 +00:00
|
|
|
sendProgress();
|
|
|
|
sendLogs();
|
2021-08-30 15:35:25 +00:00
|
|
|
sendProfileEvents();
|
2019-05-14 12:53:20 +00:00
|
|
|
}
|
2020-01-23 10:04:18 +00:00
|
|
|
|
2020-10-24 03:41:47 +00:00
|
|
|
if (state.is_connection_closed)
|
|
|
|
return;
|
|
|
|
|
2020-01-23 10:04:18 +00:00
|
|
|
sendData({});
|
2019-03-26 18:28:37 +00:00
|
|
|
}
|
|
|
|
|
Send progress after final update (like logs)
Otherwise you will get non completed progress on TCP, HTTP does not
affected.
Final updateProgress called from the executeQueryImpl::finish_callback:
(gdb) bt
0 DB::TCPHandler::updateProgress (this=0x7fffb581e000, value=...) at TCPHandler.cpp:1178
1 0x00007ffff7c62038 in DB::TCPHandler::<lambda(const DB::Progress&)>::operator()(const DB::Progress &) const (...) at TCPHandler.cpp:127
4 0x00007fffe9a86671 in DB::<lambda(DB::IBlockInputStream*, DB::IBlockOutputStream*)>::operator()(DB::IBlockInputStream *, DB::IBlockOutputStream *) (__closure=0x7fffb588f300,
stream_in=0x7fffb5800290, stream_out=0x0) at executeQuery.cpp:450
5 0x00007fffe9a8b948 in std::_Function_handler<void(DB::IBlockInputStream*, DB::IBlockOutputStream*), DB::executeQueryImpl(...)::<lambda(DB::IBlockInputStream*, DB::IBlockOutputStream*)> >::_M_invoke(const std::_Any_data &, DB::IBlockInputStream *&&, DB::IBlockOutputStream *&&) (...) at std_function.h:300
6 0x00007ffff7c7482f in std::function<>::operator()(DB::IBlockInputStream*, DB::IBlockOutputStream*) const (..) at std_function.h:688
7 0x00007ffff7c6f82b in DB::BlockIO::onFinish (this=0x7fffb5820738) at BlockIO.h:43
8 0x00007ffff7c65eb0 in DB::TCPHandler::processOrdinaryQuery (this=0x7fffb581e000) at TCPHandler.cpp:540
9 0x00007ffff7c63a50 in DB::TCPHandler::runImpl (this=0x7fffb581e000) at TCPHandler.cpp:269
10 0x00007ffff7c6a6fd in DB::TCPHandler::run (this=0x7fffb581e000) at TCPHandler.cpp:1226
...
2020-03-03 19:01:20 +00:00
|
|
|
sendProgress();
|
2019-03-26 18:28:37 +00:00
|
|
|
}
|
|
|
|
|
2012-07-21 07:02:55 +00:00
|
|
|
|
2017-04-17 16:02:48 +00:00
|
|
|
void TCPHandler::processTablesStatusRequest()
|
|
|
|
{
|
|
|
|
TablesStatusRequest request;
|
2020-09-17 12:15:05 +00:00
|
|
|
request.read(*in, client_tcp_protocol_version);
|
2017-04-17 16:02:48 +00:00
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
ContextPtr context_to_resolve_table_names = session->sessionContext() ? session->sessionContext() : server.context();
|
2017-04-17 16:02:48 +00:00
|
|
|
|
|
|
|
TablesStatusResponse response;
|
|
|
|
for (const QualifiedTableName & table_name: request.tables)
|
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
auto resolved_id = context_to_resolve_table_names->tryResolveStorageID({table_name.database, table_name.table});
|
|
|
|
StoragePtr table = DatabaseCatalog::instance().tryGetTable(resolved_id, context_to_resolve_table_names);
|
2017-04-20 16:19:30 +00:00
|
|
|
if (!table)
|
|
|
|
continue;
|
|
|
|
|
2017-04-17 16:02:48 +00:00
|
|
|
TableStatus status;
|
|
|
|
if (auto * replicated_table = dynamic_cast<StorageReplicatedMergeTree *>(table.get()))
|
|
|
|
{
|
|
|
|
status.is_replicated = true;
|
|
|
|
status.absolute_delay = replicated_table->getAbsoluteDelay();
|
|
|
|
}
|
|
|
|
else
|
2021-05-08 16:09:17 +00:00
|
|
|
status.is_replicated = false; //-V1048
|
2017-04-17 16:02:48 +00:00
|
|
|
|
|
|
|
response.table_states_by_id.emplace(table_name, std::move(status));
|
|
|
|
}
|
|
|
|
|
2021-02-17 17:34:52 +00:00
|
|
|
|
|
|
|
writeVarUInt(Protocol::Server::TablesStatusResponse, *out);
|
|
|
|
|
2021-01-19 19:21:06 +00:00
|
|
|
/// For testing hedged requests
|
2021-08-01 14:12:34 +00:00
|
|
|
if (sleep_in_send_tables_status.totalMilliseconds())
|
2021-01-19 19:21:06 +00:00
|
|
|
{
|
2021-02-17 17:34:52 +00:00
|
|
|
out->next();
|
2021-08-01 14:12:34 +00:00
|
|
|
std::chrono::milliseconds ms(sleep_in_send_tables_status.totalMilliseconds());
|
2021-03-22 21:21:52 +00:00
|
|
|
std::this_thread::sleep_for(ms);
|
2021-01-19 19:21:06 +00:00
|
|
|
}
|
|
|
|
|
2020-09-17 12:15:05 +00:00
|
|
|
response.write(*out, client_tcp_protocol_version);
|
2017-04-17 16:02:48 +00:00
|
|
|
}
|
|
|
|
|
2019-09-03 13:55:26 +00:00
|
|
|
void TCPHandler::receiveUnexpectedTablesStatusRequest()
|
2019-09-03 09:36:16 +00:00
|
|
|
{
|
|
|
|
TablesStatusRequest skip_request;
|
2020-09-17 12:15:05 +00:00
|
|
|
skip_request.read(*in, client_tcp_protocol_version);
|
2019-09-03 09:36:16 +00:00
|
|
|
|
|
|
|
throw NetException("Unexpected packet TablesStatusRequest received from client", ErrorCodes::UNEXPECTED_PACKET_FROM_CLIENT);
|
|
|
|
}
|
2017-04-17 16:02:48 +00:00
|
|
|
|
2020-11-20 17:23:53 +00:00
|
|
|
void TCPHandler::sendPartUUIDs()
|
|
|
|
{
|
|
|
|
auto uuids = query_context->getPartUUIDs()->get();
|
|
|
|
if (!uuids.empty())
|
|
|
|
{
|
|
|
|
for (const auto & uuid : uuids)
|
|
|
|
LOG_TRACE(log, "Sending UUID: {}", toString(uuid));
|
|
|
|
|
|
|
|
writeVarUInt(Protocol::Server::PartUUIDs, *out);
|
|
|
|
writeVectorBinary(uuids, *out);
|
|
|
|
out->next();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-03-22 17:12:31 +00:00
|
|
|
|
2021-04-10 02:21:18 +00:00
|
|
|
void TCPHandler::sendReadTaskRequestAssumeLocked()
|
2021-03-22 17:12:31 +00:00
|
|
|
{
|
2021-04-06 11:05:47 +00:00
|
|
|
writeVarUInt(Protocol::Server::ReadTaskRequest, *out);
|
2021-03-22 17:12:31 +00:00
|
|
|
out->next();
|
|
|
|
}
|
|
|
|
|
2019-03-26 18:28:37 +00:00
|
|
|
void TCPHandler::sendProfileInfo(const BlockStreamProfileInfo & info)
|
2013-05-22 14:57:43 +00:00
|
|
|
{
|
2019-01-23 14:48:50 +00:00
|
|
|
writeVarUInt(Protocol::Server::ProfileInfo, *out);
|
2019-03-26 18:28:37 +00:00
|
|
|
info.write(*out);
|
2019-01-23 14:48:50 +00:00
|
|
|
out->next();
|
2013-05-22 14:57:43 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2019-03-26 18:28:37 +00:00
|
|
|
void TCPHandler::sendTotals(const Block & totals)
|
2013-09-05 20:22:43 +00:00
|
|
|
{
|
2019-01-23 14:48:50 +00:00
|
|
|
if (totals)
|
|
|
|
{
|
|
|
|
initBlockOutput(totals);
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2019-01-23 14:48:50 +00:00
|
|
|
writeVarUInt(Protocol::Server::Totals, *out);
|
|
|
|
writeStringBinary("", *out);
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2019-01-23 14:48:50 +00:00
|
|
|
state.block_out->write(totals);
|
|
|
|
state.maybe_compressed_out->next();
|
|
|
|
out->next();
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
2013-09-05 20:22:43 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2019-03-26 18:28:37 +00:00
|
|
|
void TCPHandler::sendExtremes(const Block & extremes)
|
2013-09-07 02:03:13 +00:00
|
|
|
{
|
2019-01-23 14:48:50 +00:00
|
|
|
if (extremes)
|
|
|
|
{
|
|
|
|
initBlockOutput(extremes);
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2019-01-23 14:48:50 +00:00
|
|
|
writeVarUInt(Protocol::Server::Extremes, *out);
|
|
|
|
writeStringBinary("", *out);
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2019-01-23 14:48:50 +00:00
|
|
|
state.block_out->write(extremes);
|
|
|
|
state.maybe_compressed_out->next();
|
|
|
|
out->next();
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
2013-09-07 02:03:13 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2021-08-30 11:04:59 +00:00
|
|
|
namespace
|
|
|
|
{
|
|
|
|
using namespace ProfileEvents;
|
|
|
|
|
|
|
|
enum ProfileEventTypes : int8_t
|
|
|
|
{
|
|
|
|
INCREMENT = 1,
|
|
|
|
GAUGE = 2,
|
|
|
|
};
|
|
|
|
|
|
|
|
constexpr size_t NAME_COLUMN_INDEX = 4;
|
|
|
|
constexpr size_t VALUE_COLUMN_INDEX = 5;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Add records about provided non-zero ProfileEvents::Counters.
|
|
|
|
*/
|
|
|
|
void dumpProfileEvents(
|
|
|
|
ProfileEvents::Counters const & snapshot,
|
|
|
|
MutableColumns & columns,
|
|
|
|
String const & host_name,
|
|
|
|
time_t current_time,
|
|
|
|
UInt64 thread_id)
|
|
|
|
{
|
|
|
|
size_t rows = 0;
|
|
|
|
auto & name_column = columns[NAME_COLUMN_INDEX];
|
|
|
|
auto & value_column = columns[VALUE_COLUMN_INDEX];
|
|
|
|
for (ProfileEvents::Event event = 0; event < ProfileEvents::Counters::num_counters; ++event)
|
|
|
|
{
|
|
|
|
UInt64 value = snapshot[event].load(std::memory_order_relaxed);
|
|
|
|
|
|
|
|
if (value == 0)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
const char * desc = ProfileEvents::getName(event);
|
|
|
|
name_column->insertData(desc, strlen(desc));
|
|
|
|
value_column->insert(value);
|
|
|
|
rows++;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Fill the rest of the columns with data
|
|
|
|
for (size_t row = 0; row < rows; ++row)
|
|
|
|
{
|
|
|
|
size_t i = 0;
|
|
|
|
columns[i++]->insertData(host_name.data(), host_name.size());
|
|
|
|
columns[i++]->insert(UInt64(current_time));
|
|
|
|
columns[i++]->insert(UInt64{thread_id});
|
|
|
|
columns[i++]->insert(ProfileEventTypes::INCREMENT);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void dumpMemoryTracker(
|
|
|
|
MemoryTracker * memoryTracker,
|
|
|
|
MutableColumns & columns,
|
|
|
|
String const & host_name,
|
|
|
|
UInt64 thread_id)
|
|
|
|
{
|
|
|
|
auto metric = memoryTracker->getMetric();
|
|
|
|
if (metric == CurrentMetrics::end())
|
|
|
|
return;
|
2021-08-30 15:35:25 +00:00
|
|
|
time_t current_time = time(nullptr);
|
2021-08-30 11:04:59 +00:00
|
|
|
|
|
|
|
size_t i = 0;
|
|
|
|
columns[i++]->insertData(host_name.data(), host_name.size());
|
|
|
|
columns[i++]->insert(UInt64(current_time));
|
|
|
|
columns[i++]->insert(UInt64{thread_id});
|
|
|
|
columns[i++]->insert(ProfileEventTypes::GAUGE);
|
|
|
|
|
|
|
|
auto const * metric_name = CurrentMetrics::getName(metric);
|
|
|
|
columns[i++]->insertData(metric_name, strlen(metric_name));
|
|
|
|
auto metric_value = CurrentMetrics::get(metric);
|
|
|
|
columns[i++]->insert(metric_value);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void TCPHandler::sendProfileEvents()
|
|
|
|
{
|
|
|
|
auto profile_event_type = std::make_shared<DataTypeEnum8>(
|
|
|
|
DataTypeEnum8::Values
|
|
|
|
{
|
|
|
|
{ "increment", static_cast<Int8>(INCREMENT)},
|
|
|
|
{ "gauge", static_cast<Int8>(GAUGE)},
|
|
|
|
});
|
|
|
|
|
|
|
|
NamesAndTypesList column_names_and_types = {
|
|
|
|
{ "host_name", std::make_shared<DataTypeString>() },
|
|
|
|
{ "current_time", std::make_shared<DataTypeDateTime>() },
|
|
|
|
{ "thread_id", std::make_shared<DataTypeUInt64>() },
|
|
|
|
{ "type", profile_event_type },
|
|
|
|
{ "name", std::make_shared<DataTypeString>() },
|
|
|
|
{ "value", std::make_shared<DataTypeUInt64>() },
|
|
|
|
};
|
|
|
|
|
|
|
|
ColumnsWithTypeAndName temp_columns;
|
|
|
|
for (auto const & name_and_type : column_names_and_types)
|
|
|
|
temp_columns.emplace_back(name_and_type.type, name_and_type.name);
|
|
|
|
|
|
|
|
Block block(std::move(temp_columns));
|
|
|
|
|
|
|
|
MutableColumns columns = block.mutateColumns();
|
2021-08-30 15:35:25 +00:00
|
|
|
auto thread_group = CurrentThread::getGroup();
|
|
|
|
for (auto * thread : thread_group->threads)
|
|
|
|
{
|
|
|
|
auto const counters_snapshot = thread->performance_counters.getPartiallyAtomicSnapshot();
|
|
|
|
auto current_time = time(nullptr);
|
|
|
|
auto * memory_tracker = &thread->memory_tracker;
|
|
|
|
auto const thread_id = CurrentThread::get().thread_id;
|
2021-08-30 11:04:59 +00:00
|
|
|
|
2021-08-30 15:35:25 +00:00
|
|
|
dumpProfileEvents(counters_snapshot, columns, server_display_name, current_time, thread_id);
|
|
|
|
dumpMemoryTracker(memory_tracker, columns, server_display_name, thread_id);
|
|
|
|
}
|
2021-08-30 11:04:59 +00:00
|
|
|
block.setColumns(std::move(columns));
|
|
|
|
|
|
|
|
initProfileEventsBlockOutput(block);
|
|
|
|
|
|
|
|
writeVarUInt(Protocol::Server::ProfileEvents, *out);
|
|
|
|
writeStringBinary("", *out);
|
|
|
|
|
|
|
|
state.logs_block_out->write(block);
|
|
|
|
out->next();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2020-12-02 21:05:51 +00:00
|
|
|
bool TCPHandler::receiveProxyHeader()
|
|
|
|
{
|
|
|
|
if (in->eof())
|
|
|
|
{
|
|
|
|
LOG_WARNING(log, "Client has not sent any data.");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
String forwarded_address;
|
|
|
|
|
|
|
|
/// Only PROXYv1 is supported.
|
|
|
|
/// Validation of protocol is not fully performed.
|
|
|
|
|
|
|
|
LimitReadBuffer limit_in(*in, 107, true); /// Maximum length from the specs.
|
|
|
|
|
|
|
|
assertString("PROXY ", limit_in);
|
|
|
|
|
|
|
|
if (limit_in.eof())
|
|
|
|
{
|
|
|
|
LOG_WARNING(log, "Incomplete PROXY header is received.");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// TCP4 / TCP6 / UNKNOWN
|
|
|
|
if ('T' == *limit_in.position())
|
|
|
|
{
|
|
|
|
assertString("TCP", limit_in);
|
|
|
|
|
|
|
|
if (limit_in.eof())
|
|
|
|
{
|
|
|
|
LOG_WARNING(log, "Incomplete PROXY header is received.");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ('4' != *limit_in.position() && '6' != *limit_in.position())
|
|
|
|
{
|
|
|
|
LOG_WARNING(log, "Unexpected protocol in PROXY header is received.");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
++limit_in.position();
|
|
|
|
assertChar(' ', limit_in);
|
|
|
|
|
|
|
|
/// Read the first field and ignore other.
|
|
|
|
readStringUntilWhitespace(forwarded_address, limit_in);
|
|
|
|
|
|
|
|
/// Skip until \r\n
|
|
|
|
while (!limit_in.eof() && *limit_in.position() != '\r')
|
|
|
|
++limit_in.position();
|
|
|
|
assertString("\r\n", limit_in);
|
|
|
|
}
|
|
|
|
else if (checkString("UNKNOWN", limit_in))
|
|
|
|
{
|
|
|
|
/// This is just a health check, there is no subsequent data in this connection.
|
|
|
|
|
|
|
|
while (!limit_in.eof() && *limit_in.position() != '\r')
|
|
|
|
++limit_in.position();
|
|
|
|
assertString("\r\n", limit_in);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
LOG_WARNING(log, "Unexpected protocol in PROXY header is received.");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
LOG_TRACE(log, "Forwarded client address from PROXY header: {}", forwarded_address);
|
2021-03-05 14:57:16 +00:00
|
|
|
session->getClientInfo().forwarded_for = forwarded_address;
|
2020-12-02 21:05:51 +00:00
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2021-08-20 09:56:39 +00:00
|
|
|
namespace
|
|
|
|
{
|
|
|
|
|
|
|
|
std::string formatHTTPErrorResponseWhenUserIsConnectedToWrongPort(const Poco::Util::AbstractConfiguration& config)
|
|
|
|
{
|
|
|
|
std::string result = fmt::format(
|
|
|
|
"HTTP/1.0 400 Bad Request\r\n\r\n"
|
|
|
|
"Port {} is for clickhouse-client program\r\n",
|
|
|
|
config.getString("tcp_port"));
|
|
|
|
|
|
|
|
if (config.has("http_port"))
|
|
|
|
{
|
|
|
|
result += fmt::format(
|
|
|
|
"You must use port {} for HTTP.\r\n",
|
|
|
|
config.getString("http_port"));
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2012-05-21 06:49:05 +00:00
|
|
|
void TCPHandler::receiveHello()
|
2012-05-16 18:03:00 +00:00
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
/// Receive `hello` packet.
|
|
|
|
UInt64 packet_type = 0;
|
2020-09-14 21:55:43 +00:00
|
|
|
String user;
|
2017-04-01 07:20:54 +00:00
|
|
|
String password;
|
|
|
|
|
|
|
|
readVarUInt(packet_type, *in);
|
|
|
|
if (packet_type != Protocol::Client::Hello)
|
|
|
|
{
|
|
|
|
/** If you accidentally accessed the HTTP protocol for a port destined for an internal TCP protocol,
|
2017-04-17 16:02:48 +00:00
|
|
|
* Then instead of the packet type, there will be G (GET) or P (POST), in most cases.
|
2017-04-01 07:20:54 +00:00
|
|
|
*/
|
|
|
|
if (packet_type == 'G' || packet_type == 'P')
|
|
|
|
{
|
2021-08-20 09:56:39 +00:00
|
|
|
writeString(formatHTTPErrorResponseWhenUserIsConnectedToWrongPort(server.config()), *out);
|
2017-04-01 07:20:54 +00:00
|
|
|
throw Exception("Client has connected to wrong port", ErrorCodes::CLIENT_HAS_CONNECTED_TO_WRONG_PORT);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
throw NetException("Unexpected packet from client", ErrorCodes::UNEXPECTED_PACKET_FROM_CLIENT);
|
|
|
|
}
|
|
|
|
|
|
|
|
readStringBinary(client_name, *in);
|
|
|
|
readVarUInt(client_version_major, *in);
|
|
|
|
readVarUInt(client_version_minor, *in);
|
2018-07-31 21:36:18 +00:00
|
|
|
// NOTE For backward compatibility of the protocol, client cannot send its version_patch.
|
2020-09-17 12:15:05 +00:00
|
|
|
readVarUInt(client_tcp_protocol_version, *in);
|
2017-04-01 07:20:54 +00:00
|
|
|
readStringBinary(default_database, *in);
|
|
|
|
readStringBinary(user, *in);
|
|
|
|
readStringBinary(password, *in);
|
|
|
|
|
2020-09-14 21:55:43 +00:00
|
|
|
if (user.empty())
|
|
|
|
throw NetException("Unexpected packet from client (no user in Hello package)", ErrorCodes::UNEXPECTED_PACKET_FROM_CLIENT);
|
|
|
|
|
2020-05-23 22:24:01 +00:00
|
|
|
LOG_DEBUG(log, "Connected {} version {}.{}.{}, revision: {}{}{}.",
|
2020-05-23 22:21:29 +00:00
|
|
|
client_name,
|
|
|
|
client_version_major, client_version_minor, client_version_patch,
|
2020-09-17 12:15:05 +00:00
|
|
|
client_tcp_protocol_version,
|
2020-05-23 22:21:29 +00:00
|
|
|
(!default_database.empty() ? ", database: " + default_database : ""),
|
2020-09-14 21:55:43 +00:00
|
|
|
(!user.empty() ? ", user: " + user : "")
|
|
|
|
);
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
auto & client_info = session->getClientInfo();
|
|
|
|
client_info.client_name = client_name;
|
|
|
|
client_info.client_version_major = client_version_major;
|
|
|
|
client_info.client_version_minor = client_version_minor;
|
|
|
|
client_info.client_version_patch = client_version_patch;
|
|
|
|
client_info.client_tcp_protocol_version = client_tcp_protocol_version;
|
|
|
|
|
|
|
|
is_interserver_mode = (user == USER_INTERSERVER_MARKER);
|
|
|
|
if (is_interserver_mode)
|
2020-09-14 21:55:43 +00:00
|
|
|
{
|
2021-08-18 13:50:15 +00:00
|
|
|
client_info.interface = ClientInfo::Interface::TCP_INTERSERVER;
|
2020-09-14 21:55:43 +00:00
|
|
|
receiveClusterNameAndSalt();
|
2021-08-01 14:12:34 +00:00
|
|
|
return;
|
2020-09-14 21:55:43 +00:00
|
|
|
}
|
2021-08-01 14:12:34 +00:00
|
|
|
|
|
|
|
session->authenticate(user, password, socket().peerAddress());
|
2012-05-16 18:03:00 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2019-09-03 09:36:16 +00:00
|
|
|
void TCPHandler::receiveUnexpectedHello()
|
|
|
|
{
|
|
|
|
UInt64 skip_uint_64;
|
|
|
|
String skip_string;
|
|
|
|
|
|
|
|
readStringBinary(skip_string, *in);
|
|
|
|
readVarUInt(skip_uint_64, *in);
|
|
|
|
readVarUInt(skip_uint_64, *in);
|
2020-04-15 01:58:10 +00:00
|
|
|
readVarUInt(skip_uint_64, *in);
|
2019-09-03 09:36:16 +00:00
|
|
|
readStringBinary(skip_string, *in);
|
|
|
|
readStringBinary(skip_string, *in);
|
|
|
|
readStringBinary(skip_string, *in);
|
|
|
|
|
|
|
|
throw NetException("Unexpected packet Hello received from client", ErrorCodes::UNEXPECTED_PACKET_FROM_CLIENT);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2012-05-21 06:49:05 +00:00
|
|
|
void TCPHandler::sendHello()
|
2012-03-11 08:52:56 +00:00
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
writeVarUInt(Protocol::Server::Hello, *out);
|
|
|
|
writeStringBinary(DBMS_NAME, *out);
|
|
|
|
writeVarUInt(DBMS_VERSION_MAJOR, *out);
|
|
|
|
writeVarUInt(DBMS_VERSION_MINOR, *out);
|
2020-09-17 12:15:05 +00:00
|
|
|
writeVarUInt(DBMS_TCP_PROTOCOL_VERSION, *out);
|
|
|
|
if (client_tcp_protocol_version >= DBMS_MIN_REVISION_WITH_SERVER_TIMEZONE)
|
2017-04-01 07:20:54 +00:00
|
|
|
writeStringBinary(DateLUT::instance().getTimeZone(), *out);
|
2020-09-17 12:15:05 +00:00
|
|
|
if (client_tcp_protocol_version >= DBMS_MIN_REVISION_WITH_SERVER_DISPLAY_NAME)
|
2018-03-08 07:36:58 +00:00
|
|
|
writeStringBinary(server_display_name, *out);
|
2020-09-17 12:15:05 +00:00
|
|
|
if (client_tcp_protocol_version >= DBMS_MIN_REVISION_WITH_VERSION_PATCH)
|
2018-07-31 21:36:18 +00:00
|
|
|
writeVarUInt(DBMS_VERSION_PATCH, *out);
|
2017-04-01 07:20:54 +00:00
|
|
|
out->next();
|
2012-03-11 08:52:56 +00:00
|
|
|
}
|
|
|
|
|
2012-05-17 19:15:53 +00:00
|
|
|
|
2012-05-21 06:49:05 +00:00
|
|
|
bool TCPHandler::receivePacket()
|
2012-03-11 08:52:56 +00:00
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
UInt64 packet_type = 0;
|
2021-04-06 19:18:45 +00:00
|
|
|
readVarUInt(packet_type, *in);
|
2021-03-19 21:49:18 +00:00
|
|
|
|
2017-04-01 07:20:54 +00:00
|
|
|
switch (packet_type)
|
|
|
|
{
|
2020-11-20 17:23:53 +00:00
|
|
|
case Protocol::Client::IgnoredPartUUIDs:
|
|
|
|
/// Part uuids packet if any comes before query.
|
2021-08-01 14:12:34 +00:00
|
|
|
if (!state.empty() || state.part_uuids_to_ignore)
|
|
|
|
receiveUnexpectedIgnoredPartUUIDs();
|
2020-11-20 17:23:53 +00:00
|
|
|
receiveIgnoredPartUUIDs();
|
|
|
|
return true;
|
2021-08-01 14:12:34 +00:00
|
|
|
|
2017-04-01 07:20:54 +00:00
|
|
|
case Protocol::Client::Query:
|
|
|
|
if (!state.empty())
|
2019-09-03 09:36:16 +00:00
|
|
|
receiveUnexpectedQuery();
|
2017-04-01 07:20:54 +00:00
|
|
|
receiveQuery();
|
|
|
|
return true;
|
|
|
|
|
|
|
|
case Protocol::Client::Data:
|
2019-10-19 20:36:35 +00:00
|
|
|
case Protocol::Client::Scalar:
|
2021-08-01 14:12:34 +00:00
|
|
|
if (state.skipping_data)
|
|
|
|
return receiveUnexpectedData(false);
|
2017-04-01 07:20:54 +00:00
|
|
|
if (state.empty())
|
2021-08-01 14:12:34 +00:00
|
|
|
receiveUnexpectedData(true);
|
2019-10-19 20:36:35 +00:00
|
|
|
return receiveData(packet_type == Protocol::Client::Scalar);
|
2017-04-01 07:20:54 +00:00
|
|
|
|
|
|
|
case Protocol::Client::Ping:
|
|
|
|
writeVarUInt(Protocol::Server::Pong, *out);
|
|
|
|
out->next();
|
|
|
|
return false;
|
|
|
|
|
|
|
|
case Protocol::Client::Cancel:
|
2021-07-14 13:17:30 +00:00
|
|
|
{
|
|
|
|
/// For testing connection collector.
|
2021-08-01 14:12:34 +00:00
|
|
|
if (sleep_in_receive_cancel.totalMilliseconds())
|
2021-07-14 13:17:30 +00:00
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
std::chrono::milliseconds ms(sleep_in_receive_cancel.totalMilliseconds());
|
2021-07-14 13:17:30 +00:00
|
|
|
std::this_thread::sleep_for(ms);
|
|
|
|
}
|
|
|
|
|
2017-04-01 07:20:54 +00:00
|
|
|
return false;
|
2021-07-14 13:17:30 +00:00
|
|
|
}
|
2017-04-01 07:20:54 +00:00
|
|
|
|
|
|
|
case Protocol::Client::Hello:
|
2019-09-03 09:36:16 +00:00
|
|
|
receiveUnexpectedHello();
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2017-04-17 16:02:48 +00:00
|
|
|
case Protocol::Client::TablesStatusRequest:
|
|
|
|
if (!state.empty())
|
2019-09-03 13:55:26 +00:00
|
|
|
receiveUnexpectedTablesStatusRequest();
|
2017-04-17 16:02:48 +00:00
|
|
|
processTablesStatusRequest();
|
|
|
|
out->next();
|
|
|
|
return false;
|
|
|
|
|
2017-04-01 07:20:54 +00:00
|
|
|
default:
|
2018-04-04 12:11:38 +00:00
|
|
|
throw Exception("Unknown packet " + toString(packet_type) + " from client", ErrorCodes::UNKNOWN_PACKET_FROM_CLIENT);
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
2012-03-09 15:46:52 +00:00
|
|
|
}
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
|
2020-11-20 17:23:53 +00:00
|
|
|
void TCPHandler::receiveIgnoredPartUUIDs()
|
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
readVectorBinary(state.part_uuids_to_ignore.emplace(), *in);
|
|
|
|
}
|
2020-11-20 17:23:53 +00:00
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
|
|
|
|
void TCPHandler::receiveUnexpectedIgnoredPartUUIDs()
|
|
|
|
{
|
|
|
|
std::vector<UUID> skip_part_uuids;
|
|
|
|
readVectorBinary(skip_part_uuids, *in);
|
|
|
|
throw NetException("Unexpected packet IgnoredPartUUIDs received from client", ErrorCodes::UNEXPECTED_PACKET_FROM_CLIENT);
|
2020-11-20 17:23:53 +00:00
|
|
|
}
|
|
|
|
|
2021-04-06 11:05:47 +00:00
|
|
|
|
2021-04-13 10:59:02 +00:00
|
|
|
String TCPHandler::receiveReadTaskResponseAssumeLocked()
|
2021-04-06 11:05:47 +00:00
|
|
|
{
|
|
|
|
UInt64 packet_type = 0;
|
|
|
|
readVarUInt(packet_type, *in);
|
|
|
|
if (packet_type != Protocol::Client::ReadTaskResponse)
|
2021-04-10 02:21:18 +00:00
|
|
|
{
|
|
|
|
if (packet_type == Protocol::Client::Cancel)
|
|
|
|
{
|
|
|
|
state.is_cancelled = true;
|
2021-07-14 13:17:30 +00:00
|
|
|
/// For testing connection collector.
|
2021-08-01 14:12:34 +00:00
|
|
|
if (sleep_in_receive_cancel.totalMilliseconds())
|
2021-07-14 13:17:30 +00:00
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
std::chrono::milliseconds ms(sleep_in_receive_cancel.totalMilliseconds());
|
2021-07-14 13:17:30 +00:00
|
|
|
std::this_thread::sleep_for(ms);
|
|
|
|
}
|
2021-04-10 02:21:18 +00:00
|
|
|
return {};
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
throw Exception(fmt::format("Received {} packet after requesting read task",
|
|
|
|
Protocol::Client::toString(packet_type)), ErrorCodes::UNEXPECTED_PACKET_FROM_CLIENT);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
UInt64 version;
|
|
|
|
readVarUInt(version, *in);
|
|
|
|
if (version != DBMS_CLUSTER_PROCESSING_PROTOCOL_VERSION)
|
2021-04-12 17:48:16 +00:00
|
|
|
throw Exception("Protocol version for distributed processing mismatched", ErrorCodes::UNKNOWN_PROTOCOL);
|
2021-04-06 11:05:47 +00:00
|
|
|
String response;
|
|
|
|
readStringBinary(response, *in);
|
|
|
|
return response;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2020-09-14 21:55:43 +00:00
|
|
|
void TCPHandler::receiveClusterNameAndSalt()
|
|
|
|
{
|
2021-04-06 19:18:45 +00:00
|
|
|
readStringBinary(cluster, *in);
|
|
|
|
readStringBinary(salt, *in, 32);
|
2020-09-14 21:55:43 +00:00
|
|
|
|
|
|
|
try
|
|
|
|
{
|
|
|
|
if (salt.empty())
|
|
|
|
throw NetException("Empty salt is not allowed", ErrorCodes::UNEXPECTED_PACKET_FROM_CLIENT);
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
cluster_secret = server.context()->getCluster(cluster)->getSecret();
|
2020-09-14 21:55:43 +00:00
|
|
|
}
|
|
|
|
catch (const Exception & e)
|
|
|
|
{
|
|
|
|
try
|
|
|
|
{
|
|
|
|
/// We try to send error information to the client.
|
2021-08-01 14:12:34 +00:00
|
|
|
sendException(e, send_exception_with_stack_trace);
|
2020-09-14 21:55:43 +00:00
|
|
|
}
|
|
|
|
catch (...) {}
|
|
|
|
|
|
|
|
throw;
|
|
|
|
}
|
|
|
|
}
|
2012-05-17 19:15:53 +00:00
|
|
|
|
2012-05-21 06:49:05 +00:00
|
|
|
void TCPHandler::receiveQuery()
|
2012-03-11 08:52:56 +00:00
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
UInt64 stage = 0;
|
|
|
|
UInt64 compression = 0;
|
|
|
|
|
|
|
|
state.is_empty = false;
|
|
|
|
readStringBinary(state.query_id, *in);
|
|
|
|
|
Do not allow to reuse previous credentials in case of inter-server secret
Before this patch INSERT via Buffer/Kafka may re-use previously set user
for that connection, while this is not correct, it should reset the
user, and use global context.
Note, before [1] there was a fallback to default user, but that code had
been removed, and now it got back.
[1]: 0159c74f217ec764060c480819e3ccc9d5a99a63 ("Secure inter-cluster query execution (with initial_user as current query user) [v3]")
Also note, that context for Buffer table (and others) cannot be changed,
since they don't have any user only profile.
I've tested this patch manually using the following:
create table dist (key Int) engine=Distributed(test_cluster_two_shards_secure, default, data, key);
create table buffer (key Int) engine=Buffer(default, dist, 1, 0, 0, 0, 0, 0, 0);
create table data (key Int) engine=Memory();
# to start the connection with readonly user
$ clickhouse-client --user readonly -q 'select * from dist'
$ clickhouse-client -q 'insert into buffer values (1)'
# before this patch this produces errors like:
# 2021.09.27 23:46:48.384920 [ 19474 ] {} <Error> default.dist.DirectoryMonitor: Code: 164. DB::Exception: Received from 127.0.0.2:9000. DB::Exception: readonly: Cannot execute query in readonly mode. Stack trace:
v2: reset the authentication instead of using default user (as suggested by @vitlibar)
v3: reset Session::user and introduce ClientInfo::resetAuthentication (as suggested by @vitlibar)
v4: reset the session every time in interserver mode (suggested by @vitlibar)
2021-09-30 07:15:38 +00:00
|
|
|
/// In interserer mode,
|
|
|
|
/// initial_user can be empty in case of Distributed INSERT via Buffer/Kafka,
|
|
|
|
/// (i.e. when the INSERT is done with the global context w/o user),
|
|
|
|
/// so it is better to reset session to avoid using old user.
|
|
|
|
if (is_interserver_mode)
|
|
|
|
{
|
|
|
|
ClientInfo original_session_client_info = session->getClientInfo();
|
|
|
|
session = std::make_unique<Session>(server.context(), ClientInfo::Interface::TCP_INTERSERVER);
|
|
|
|
session->getClientInfo() = original_session_client_info;
|
|
|
|
}
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
/// Read client info.
|
|
|
|
ClientInfo client_info = session->getClientInfo();
|
2020-09-17 12:15:05 +00:00
|
|
|
if (client_tcp_protocol_version >= DBMS_MIN_REVISION_WITH_CLIENT_INFO)
|
|
|
|
client_info.read(*in, client_tcp_protocol_version);
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2020-02-28 18:55:21 +00:00
|
|
|
/// Per query settings are also passed via TCP.
|
|
|
|
/// We need to check them before applying due to they can violate the settings constraints.
|
2021-05-20 13:21:42 +00:00
|
|
|
auto settings_format = (client_tcp_protocol_version >= DBMS_MIN_REVISION_WITH_SETTINGS_SERIALIZED_AS_STRINGS)
|
|
|
|
? SettingsWriteFormat::STRINGS_WITH_FLAGS
|
|
|
|
: SettingsWriteFormat::BINARY;
|
2020-02-28 18:55:21 +00:00
|
|
|
Settings passed_settings;
|
2020-07-20 09:57:17 +00:00
|
|
|
passed_settings.read(*in, settings_format);
|
2020-09-14 21:55:43 +00:00
|
|
|
|
|
|
|
/// Interserver secret.
|
|
|
|
std::string received_hash;
|
2020-09-17 14:55:41 +00:00
|
|
|
if (client_tcp_protocol_version >= DBMS_MIN_REVISION_WITH_INTERSERVER_SECRET)
|
2020-09-14 21:55:43 +00:00
|
|
|
{
|
|
|
|
readStringBinary(received_hash, *in, 32);
|
|
|
|
}
|
|
|
|
|
|
|
|
readVarUInt(stage, *in);
|
|
|
|
state.stage = QueryProcessingStage::Enum(stage);
|
|
|
|
|
|
|
|
readVarUInt(compression, *in);
|
|
|
|
state.compression = static_cast<Protocol::Compression>(compression);
|
2021-08-01 14:12:34 +00:00
|
|
|
last_block_in.compression = state.compression;
|
2020-09-14 21:55:43 +00:00
|
|
|
|
|
|
|
readStringBinary(state.query, *in);
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
if (is_interserver_mode)
|
2020-09-14 21:55:43 +00:00
|
|
|
{
|
|
|
|
#if USE_SSL
|
|
|
|
std::string data(salt);
|
|
|
|
data += cluster_secret;
|
|
|
|
data += state.query;
|
|
|
|
data += state.query_id;
|
|
|
|
data += client_info.initial_user;
|
|
|
|
|
2020-09-10 18:24:53 +00:00
|
|
|
if (received_hash.size() != 32)
|
2020-09-14 21:55:43 +00:00
|
|
|
throw NetException("Unexpected hash received from client", ErrorCodes::UNEXPECTED_PACKET_FROM_CLIENT);
|
|
|
|
|
2020-09-10 18:24:53 +00:00
|
|
|
std::string calculated_hash = encodeSHA256(data);
|
2020-09-14 21:55:43 +00:00
|
|
|
|
|
|
|
if (calculated_hash != received_hash)
|
|
|
|
throw NetException("Hash mismatch", ErrorCodes::UNEXPECTED_PACKET_FROM_CLIENT);
|
|
|
|
/// TODO: change error code?
|
|
|
|
|
Do not allow to reuse previous credentials in case of inter-server secret
Before this patch INSERT via Buffer/Kafka may re-use previously set user
for that connection, while this is not correct, it should reset the
user, and use global context.
Note, before [1] there was a fallback to default user, but that code had
been removed, and now it got back.
[1]: 0159c74f217ec764060c480819e3ccc9d5a99a63 ("Secure inter-cluster query execution (with initial_user as current query user) [v3]")
Also note, that context for Buffer table (and others) cannot be changed,
since they don't have any user only profile.
I've tested this patch manually using the following:
create table dist (key Int) engine=Distributed(test_cluster_two_shards_secure, default, data, key);
create table buffer (key Int) engine=Buffer(default, dist, 1, 0, 0, 0, 0, 0, 0);
create table data (key Int) engine=Memory();
# to start the connection with readonly user
$ clickhouse-client --user readonly -q 'select * from dist'
$ clickhouse-client -q 'insert into buffer values (1)'
# before this patch this produces errors like:
# 2021.09.27 23:46:48.384920 [ 19474 ] {} <Error> default.dist.DirectoryMonitor: Code: 164. DB::Exception: Received from 127.0.0.2:9000. DB::Exception: readonly: Cannot execute query in readonly mode. Stack trace:
v2: reset the authentication instead of using default user (as suggested by @vitlibar)
v3: reset Session::user and introduce ClientInfo::resetAuthentication (as suggested by @vitlibar)
v4: reset the session every time in interserver mode (suggested by @vitlibar)
2021-09-30 07:15:38 +00:00
|
|
|
if (client_info.initial_user.empty())
|
|
|
|
{
|
|
|
|
LOG_DEBUG(log, "User (no user, interserver mode)");
|
|
|
|
}
|
|
|
|
else
|
2020-09-14 21:55:43 +00:00
|
|
|
{
|
Do not allow to reuse previous credentials in case of inter-server secret
Before this patch INSERT via Buffer/Kafka may re-use previously set user
for that connection, while this is not correct, it should reset the
user, and use global context.
Note, before [1] there was a fallback to default user, but that code had
been removed, and now it got back.
[1]: 0159c74f217ec764060c480819e3ccc9d5a99a63 ("Secure inter-cluster query execution (with initial_user as current query user) [v3]")
Also note, that context for Buffer table (and others) cannot be changed,
since they don't have any user only profile.
I've tested this patch manually using the following:
create table dist (key Int) engine=Distributed(test_cluster_two_shards_secure, default, data, key);
create table buffer (key Int) engine=Buffer(default, dist, 1, 0, 0, 0, 0, 0, 0);
create table data (key Int) engine=Memory();
# to start the connection with readonly user
$ clickhouse-client --user readonly -q 'select * from dist'
$ clickhouse-client -q 'insert into buffer values (1)'
# before this patch this produces errors like:
# 2021.09.27 23:46:48.384920 [ 19474 ] {} <Error> default.dist.DirectoryMonitor: Code: 164. DB::Exception: Received from 127.0.0.2:9000. DB::Exception: readonly: Cannot execute query in readonly mode. Stack trace:
v2: reset the authentication instead of using default user (as suggested by @vitlibar)
v3: reset Session::user and introduce ClientInfo::resetAuthentication (as suggested by @vitlibar)
v4: reset the session every time in interserver mode (suggested by @vitlibar)
2021-09-30 07:15:38 +00:00
|
|
|
LOG_DEBUG(log, "User (initial, interserver mode): {}", client_info.initial_user);
|
2021-08-01 14:12:34 +00:00
|
|
|
session->authenticate(AlwaysAllowCredentials{client_info.initial_user}, client_info.initial_address);
|
2020-09-14 21:55:43 +00:00
|
|
|
}
|
|
|
|
#else
|
|
|
|
throw Exception(
|
|
|
|
"Inter-server secret support is disabled, because ClickHouse was built without SSL library",
|
|
|
|
ErrorCodes::SUPPORT_IS_DISABLED);
|
|
|
|
#endif
|
|
|
|
}
|
2021-08-01 14:12:34 +00:00
|
|
|
|
|
|
|
query_context = session->makeQueryContext(std::move(client_info));
|
|
|
|
|
|
|
|
/// Sets the default database if it wasn't set earlier for the session context.
|
|
|
|
if (!default_database.empty() && !session->sessionContext())
|
|
|
|
query_context->setCurrentDatabase(default_database);
|
|
|
|
|
|
|
|
if (state.part_uuids_to_ignore)
|
|
|
|
query_context->getIgnoredPartUUIDs()->add(*state.part_uuids_to_ignore);
|
|
|
|
|
|
|
|
query_context->setProgressCallback([this] (const Progress & value) { return this->updateProgress(value); });
|
2020-09-14 21:55:43 +00:00
|
|
|
|
|
|
|
///
|
|
|
|
/// Settings
|
|
|
|
///
|
2020-02-28 18:55:21 +00:00
|
|
|
auto settings_changes = passed_settings.changes();
|
2021-08-01 14:12:34 +00:00
|
|
|
auto query_kind = query_context->getClientInfo().query_kind;
|
|
|
|
if (query_kind == ClientInfo::QueryKind::INITIAL_QUERY)
|
2020-02-28 18:55:21 +00:00
|
|
|
{
|
|
|
|
/// Throw an exception if the passed settings violate the constraints.
|
|
|
|
query_context->checkSettingsConstraints(settings_changes);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
/// Quietly clamp to the constraints if it's not an initial query.
|
|
|
|
query_context->clampToSettingsConstraints(settings_changes);
|
|
|
|
}
|
2019-12-16 19:03:03 +00:00
|
|
|
query_context->applySettingsChanges(settings_changes);
|
2020-09-08 13:19:27 +00:00
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
/// Use the received query id, or generate a random default. It is convenient
|
|
|
|
/// to also generate the default OpenTelemetry trace id at the same time, and
|
|
|
|
/// set the trace parent.
|
|
|
|
/// Notes:
|
|
|
|
/// 1) ClientInfo might contain upstream trace id, so we decide whether to use
|
|
|
|
/// the default ids after we have received the ClientInfo.
|
|
|
|
/// 2) There is the opentelemetry_start_trace_probability setting that
|
|
|
|
/// controls when we start a new trace. It can be changed via Native protocol,
|
|
|
|
/// so we have to apply the changes first.
|
|
|
|
query_context->setCurrentQueryId(state.query_id);
|
|
|
|
|
2021-02-20 08:45:25 +00:00
|
|
|
/// Disable function name normalization when it's a secondary query, because queries are either
|
|
|
|
/// already normalized on initiator node, or not normalized and should remain unnormalized for
|
|
|
|
/// compatibility.
|
2021-08-01 14:12:34 +00:00
|
|
|
if (query_kind == ClientInfo::QueryKind::SECONDARY_QUERY)
|
2020-10-19 21:26:10 +00:00
|
|
|
{
|
2021-08-23 05:57:00 +00:00
|
|
|
query_context->setSetting("normalize_function_names", false);
|
2020-10-19 21:26:10 +00:00
|
|
|
}
|
2012-03-11 08:52:56 +00:00
|
|
|
}
|
|
|
|
|
2019-09-03 09:36:16 +00:00
|
|
|
void TCPHandler::receiveUnexpectedQuery()
|
|
|
|
{
|
|
|
|
UInt64 skip_uint_64;
|
|
|
|
String skip_string;
|
|
|
|
|
|
|
|
readStringBinary(skip_string, *in);
|
|
|
|
|
2020-03-13 14:50:26 +00:00
|
|
|
ClientInfo skip_client_info;
|
2020-09-17 12:15:05 +00:00
|
|
|
if (client_tcp_protocol_version >= DBMS_MIN_REVISION_WITH_CLIENT_INFO)
|
|
|
|
skip_client_info.read(*in, client_tcp_protocol_version);
|
2019-09-03 09:36:16 +00:00
|
|
|
|
2020-03-13 14:50:26 +00:00
|
|
|
Settings skip_settings;
|
2020-09-17 12:15:05 +00:00
|
|
|
auto settings_format = (client_tcp_protocol_version >= DBMS_MIN_REVISION_WITH_SETTINGS_SERIALIZED_AS_STRINGS) ? SettingsWriteFormat::STRINGS_WITH_FLAGS
|
2020-07-20 09:57:17 +00:00
|
|
|
: SettingsWriteFormat::BINARY;
|
|
|
|
skip_settings.read(*in, settings_format);
|
2019-09-03 09:36:16 +00:00
|
|
|
|
2020-09-14 21:55:43 +00:00
|
|
|
std::string skip_hash;
|
2020-09-17 14:55:41 +00:00
|
|
|
bool interserver_secret = client_tcp_protocol_version >= DBMS_MIN_REVISION_WITH_INTERSERVER_SECRET;
|
2020-09-14 21:55:43 +00:00
|
|
|
if (interserver_secret)
|
|
|
|
readStringBinary(skip_hash, *in, 32);
|
|
|
|
|
2019-09-03 09:36:16 +00:00
|
|
|
readVarUInt(skip_uint_64, *in);
|
2021-08-01 14:12:34 +00:00
|
|
|
|
2019-09-03 09:36:16 +00:00
|
|
|
readVarUInt(skip_uint_64, *in);
|
2021-08-01 14:12:34 +00:00
|
|
|
last_block_in.compression = static_cast<Protocol::Compression>(skip_uint_64);
|
|
|
|
|
2019-09-03 09:36:16 +00:00
|
|
|
readStringBinary(skip_string, *in);
|
|
|
|
|
|
|
|
throw NetException("Unexpected packet Query received from client", ErrorCodes::UNEXPECTED_PACKET_FROM_CLIENT);
|
|
|
|
}
|
2012-05-21 06:49:05 +00:00
|
|
|
|
2019-10-19 20:36:35 +00:00
|
|
|
bool TCPHandler::receiveData(bool scalar)
|
2013-09-05 20:22:43 +00:00
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
initBlockInput();
|
|
|
|
|
|
|
|
/// The name of the temporary table for writing data, default to empty string
|
2020-02-12 18:14:12 +00:00
|
|
|
auto temporary_id = StorageID::createEmpty();
|
|
|
|
readStringBinary(temporary_id.table_name, *in);
|
2017-04-01 07:20:54 +00:00
|
|
|
|
|
|
|
/// Read one block from the network and write it down
|
|
|
|
Block block = state.block_in->read();
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
if (!block)
|
2017-04-01 07:20:54 +00:00
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
state.read_all_data = true;
|
|
|
|
return false;
|
|
|
|
}
|
2021-02-10 22:23:27 +00:00
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
if (scalar)
|
|
|
|
{
|
|
|
|
/// Scalar value
|
|
|
|
query_context->addScalar(temporary_id.table_name, block);
|
|
|
|
}
|
|
|
|
else if (!state.need_receive_data_for_insert && !state.need_receive_data_for_input)
|
|
|
|
{
|
|
|
|
/// Data for external tables
|
2021-02-10 22:23:27 +00:00
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
auto resolved = query_context->tryResolveStorageID(temporary_id, Context::ResolveExternal);
|
|
|
|
StoragePtr storage;
|
|
|
|
/// If such a table does not exist, create it.
|
|
|
|
if (resolved)
|
2021-02-10 22:23:27 +00:00
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
storage = DatabaseCatalog::instance().getTable(resolved, query_context);
|
2021-02-10 22:23:27 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
NamesAndTypesList columns = block.getNamesAndTypesList();
|
|
|
|
auto temporary_table = TemporaryTableHolder(query_context, ColumnsDescription{columns}, {});
|
|
|
|
storage = temporary_table.getTable();
|
|
|
|
query_context->addExternalTable(temporary_id.table_name, std::move(temporary_table));
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
2021-08-01 14:12:34 +00:00
|
|
|
auto metadata_snapshot = storage->getInMemoryMetadataPtr();
|
|
|
|
/// The data will be written directly to the table.
|
2021-09-16 17:40:42 +00:00
|
|
|
QueryPipeline temporary_table_out(storage->write(ASTPtr(), metadata_snapshot, query_context));
|
2021-09-09 17:30:23 +00:00
|
|
|
PushingPipelineExecutor executor(temporary_table_out);
|
|
|
|
executor.start();
|
|
|
|
executor.push(block);
|
|
|
|
executor.finish();
|
2021-08-01 14:12:34 +00:00
|
|
|
}
|
|
|
|
else if (state.need_receive_data_for_input)
|
|
|
|
{
|
|
|
|
/// 'input' table function.
|
|
|
|
state.block_for_input = block;
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
|
|
|
else
|
2021-08-01 14:12:34 +00:00
|
|
|
{
|
|
|
|
/// INSERT query.
|
2021-09-09 17:30:23 +00:00
|
|
|
state.block_for_insert = block;
|
2021-08-01 14:12:34 +00:00
|
|
|
}
|
|
|
|
return true;
|
2013-09-05 20:22:43 +00:00
|
|
|
}
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
|
|
|
|
bool TCPHandler::receiveUnexpectedData(bool throw_exception)
|
2019-09-03 09:36:16 +00:00
|
|
|
{
|
|
|
|
String skip_external_table_name;
|
|
|
|
readStringBinary(skip_external_table_name, *in);
|
|
|
|
|
|
|
|
std::shared_ptr<ReadBuffer> maybe_compressed_in;
|
|
|
|
if (last_block_in.compression == Protocol::Compression::Enable)
|
2021-01-06 00:24:42 +00:00
|
|
|
maybe_compressed_in = std::make_shared<CompressedReadBuffer>(*in, /* allow_different_codecs */ true);
|
2019-09-03 09:36:16 +00:00
|
|
|
else
|
|
|
|
maybe_compressed_in = in;
|
|
|
|
|
2021-10-08 17:21:19 +00:00
|
|
|
auto skip_block_in = std::make_shared<NativeReader>(*maybe_compressed_in, client_tcp_protocol_version);
|
2021-08-01 14:12:34 +00:00
|
|
|
bool read_ok = skip_block_in->read();
|
2019-09-03 09:36:16 +00:00
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
if (!read_ok)
|
|
|
|
state.read_all_data = true;
|
2019-09-03 09:36:16 +00:00
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
if (throw_exception)
|
|
|
|
throw NetException("Unexpected packet Data received from client", ErrorCodes::UNEXPECTED_PACKET_FROM_CLIENT);
|
|
|
|
|
|
|
|
return read_ok;
|
2019-09-03 09:36:16 +00:00
|
|
|
}
|
2013-09-05 20:22:43 +00:00
|
|
|
|
|
|
|
void TCPHandler::initBlockInput()
|
2012-03-11 08:52:56 +00:00
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
if (!state.block_in)
|
|
|
|
{
|
2021-01-06 00:24:42 +00:00
|
|
|
/// 'allow_different_codecs' is set to true, because some parts of compressed data can be precompressed in advance
|
|
|
|
/// with another codec that the rest of the data. Example: data sent by Distributed tables.
|
|
|
|
|
2017-04-01 07:20:54 +00:00
|
|
|
if (state.compression == Protocol::Compression::Enable)
|
2021-01-06 00:24:42 +00:00
|
|
|
state.maybe_compressed_in = std::make_shared<CompressedReadBuffer>(*in, /* allow_different_codecs */ true);
|
2017-04-01 07:20:54 +00:00
|
|
|
else
|
|
|
|
state.maybe_compressed_in = in;
|
|
|
|
|
2018-12-06 11:24:07 +00:00
|
|
|
Block header;
|
2021-09-16 17:40:42 +00:00
|
|
|
if (state.io.pipeline.pushing())
|
|
|
|
header = state.io.pipeline.getHeader();
|
2019-05-28 18:30:10 +00:00
|
|
|
else if (state.need_receive_data_for_input)
|
|
|
|
header = state.input_header;
|
2018-12-06 11:24:07 +00:00
|
|
|
|
2021-10-08 17:21:19 +00:00
|
|
|
state.block_in = std::make_unique<NativeReader>(
|
2017-04-01 07:20:54 +00:00
|
|
|
*state.maybe_compressed_in,
|
2018-12-06 11:24:07 +00:00
|
|
|
header,
|
2020-09-17 12:15:05 +00:00
|
|
|
client_tcp_protocol_version);
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
2013-09-05 20:22:43 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2018-02-19 00:45:32 +00:00
|
|
|
void TCPHandler::initBlockOutput(const Block & block)
|
2013-09-05 20:22:43 +00:00
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
if (!state.block_out)
|
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
const Settings & query_settings = query_context->getSettingsRef();
|
2018-06-14 15:33:59 +00:00
|
|
|
if (!state.maybe_compressed_out)
|
|
|
|
{
|
2020-05-04 00:11:49 +00:00
|
|
|
std::string method = Poco::toUpper(query_settings.network_compression_method.toString());
|
2018-12-21 12:17:30 +00:00
|
|
|
std::optional<int> level;
|
2018-12-21 13:25:39 +00:00
|
|
|
if (method == "ZSTD")
|
2020-05-04 00:11:49 +00:00
|
|
|
level = query_settings.network_zstd_compression_level;
|
2018-12-21 12:17:30 +00:00
|
|
|
|
2018-06-14 15:33:59 +00:00
|
|
|
if (state.compression == Protocol::Compression::Enable)
|
2020-08-28 17:40:45 +00:00
|
|
|
{
|
2021-05-06 11:57:22 +00:00
|
|
|
CompressionCodecFactory::instance().validateCodec(method, level, !query_settings.allow_suspicious_codecs, query_settings.allow_experimental_codecs);
|
2020-08-28 17:40:45 +00:00
|
|
|
|
2018-06-14 15:33:59 +00:00
|
|
|
state.maybe_compressed_out = std::make_shared<CompressedWriteBuffer>(
|
2021-05-24 03:43:25 +00:00
|
|
|
*out, CompressionCodecFactory::instance().get(method, level));
|
2020-08-28 17:40:45 +00:00
|
|
|
}
|
2018-06-14 15:33:59 +00:00
|
|
|
else
|
|
|
|
state.maybe_compressed_out = out;
|
|
|
|
}
|
2017-04-01 07:20:54 +00:00
|
|
|
|
2021-10-08 17:21:19 +00:00
|
|
|
state.block_out = std::make_unique<NativeWriter>(
|
2017-04-01 07:20:54 +00:00
|
|
|
*state.maybe_compressed_out,
|
2020-09-17 12:15:05 +00:00
|
|
|
client_tcp_protocol_version,
|
2018-12-19 16:47:30 +00:00
|
|
|
block.cloneEmpty(),
|
2021-08-01 14:12:34 +00:00
|
|
|
!query_settings.low_cardinality_allow_in_native_format);
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
2012-03-19 12:57:56 +00:00
|
|
|
}
|
2012-03-11 08:52:56 +00:00
|
|
|
|
2018-06-06 20:57:07 +00:00
|
|
|
void TCPHandler::initLogsBlockOutput(const Block & block)
|
|
|
|
{
|
|
|
|
if (!state.logs_block_out)
|
|
|
|
{
|
2018-06-14 15:33:59 +00:00
|
|
|
/// Use uncompressed stream since log blocks usually contain only one row
|
2021-08-01 14:12:34 +00:00
|
|
|
const Settings & query_settings = query_context->getSettingsRef();
|
2021-10-08 17:21:19 +00:00
|
|
|
state.logs_block_out = std::make_unique<NativeWriter>(
|
2018-06-14 15:33:59 +00:00
|
|
|
*out,
|
2020-09-17 12:15:05 +00:00
|
|
|
client_tcp_protocol_version,
|
2018-12-19 16:47:30 +00:00
|
|
|
block.cloneEmpty(),
|
2021-08-01 14:12:34 +00:00
|
|
|
!query_settings.low_cardinality_allow_in_native_format);
|
2018-06-06 20:57:07 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2021-08-30 11:04:59 +00:00
|
|
|
void TCPHandler::initProfileEventsBlockOutput(const Block & block)
|
|
|
|
{
|
|
|
|
if (!state.profile_events_block_out)
|
|
|
|
{
|
|
|
|
const Settings & query_settings = query_context->getSettingsRef();
|
|
|
|
state.profile_events_block_out = std::make_unique<NativeWriter>(
|
|
|
|
*out,
|
|
|
|
client_tcp_protocol_version,
|
|
|
|
block.cloneEmpty(),
|
|
|
|
!query_settings.low_cardinality_allow_in_native_format);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2012-05-21 06:49:05 +00:00
|
|
|
bool TCPHandler::isQueryCancelled()
|
2012-05-09 08:16:09 +00:00
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
if (state.is_cancelled || state.sent_all_data)
|
|
|
|
return true;
|
|
|
|
|
2021-08-01 14:12:34 +00:00
|
|
|
if (after_check_cancelled.elapsed() / 1000 < interactive_delay)
|
2017-04-01 07:20:54 +00:00
|
|
|
return false;
|
|
|
|
|
|
|
|
after_check_cancelled.restart();
|
|
|
|
|
|
|
|
/// During request execution the only packet that can come from the client is stopping the query.
|
|
|
|
if (static_cast<ReadBufferFromPocoSocket &>(*in).poll(0))
|
|
|
|
{
|
2020-10-24 03:41:47 +00:00
|
|
|
if (in->eof())
|
|
|
|
{
|
|
|
|
LOG_INFO(log, "Client has dropped the connection, cancel the query.");
|
|
|
|
state.is_cancelled = true;
|
|
|
|
state.is_connection_closed = true;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2017-04-01 07:20:54 +00:00
|
|
|
UInt64 packet_type = 0;
|
|
|
|
readVarUInt(packet_type, *in);
|
|
|
|
|
|
|
|
switch (packet_type)
|
|
|
|
{
|
|
|
|
case Protocol::Client::Cancel:
|
|
|
|
if (state.empty())
|
|
|
|
throw NetException("Unexpected packet Cancel received from client", ErrorCodes::UNEXPECTED_PACKET_FROM_CLIENT);
|
|
|
|
LOG_INFO(log, "Query was cancelled.");
|
|
|
|
state.is_cancelled = true;
|
2021-07-14 13:17:30 +00:00
|
|
|
/// For testing connection collector.
|
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
if (sleep_in_receive_cancel.totalMilliseconds())
|
2021-07-14 13:17:30 +00:00
|
|
|
{
|
2021-08-01 14:12:34 +00:00
|
|
|
std::chrono::milliseconds ms(sleep_in_receive_cancel.totalMilliseconds());
|
2021-07-14 13:17:30 +00:00
|
|
|
std::this_thread::sleep_for(ms);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-04-01 07:20:54 +00:00
|
|
|
return true;
|
|
|
|
|
|
|
|
default:
|
|
|
|
throw NetException("Unknown packet from client", ErrorCodes::UNKNOWN_PACKET_FROM_CLIENT);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return false;
|
2012-05-09 08:16:09 +00:00
|
|
|
}
|
|
|
|
|
2012-05-21 06:49:05 +00:00
|
|
|
|
2018-01-07 00:35:44 +00:00
|
|
|
void TCPHandler::sendData(const Block & block)
|
2012-03-19 12:57:56 +00:00
|
|
|
{
|
2018-02-19 00:45:32 +00:00
|
|
|
initBlockOutput(block);
|
2012-03-11 08:52:56 +00:00
|
|
|
|
2021-04-01 04:12:07 +00:00
|
|
|
auto prev_bytes_written_out = out->count();
|
|
|
|
auto prev_bytes_written_compressed_out = state.maybe_compressed_out->count();
|
2012-05-21 06:49:05 +00:00
|
|
|
|
2021-04-01 04:12:07 +00:00
|
|
|
try
|
2021-02-17 17:34:52 +00:00
|
|
|
{
|
2021-04-19 14:12:08 +00:00
|
|
|
/// For testing hedged requests
|
2021-04-19 17:55:18 +00:00
|
|
|
if (unknown_packet_in_send_data)
|
2021-04-19 14:12:08 +00:00
|
|
|
{
|
2021-04-19 17:55:18 +00:00
|
|
|
--unknown_packet_in_send_data;
|
|
|
|
if (unknown_packet_in_send_data == 0)
|
2021-04-19 14:12:08 +00:00
|
|
|
writeVarUInt(UInt64(-1), *out);
|
|
|
|
}
|
|
|
|
|
2021-04-01 04:12:07 +00:00
|
|
|
writeVarUInt(Protocol::Server::Data, *out);
|
|
|
|
/// Send external table name (empty name is the main table)
|
|
|
|
writeStringBinary("", *out);
|
|
|
|
|
|
|
|
/// For testing hedged requests
|
2021-08-01 14:12:34 +00:00
|
|
|
if (block.rows() > 0 && query_context->getSettingsRef().sleep_in_send_data_ms.totalMilliseconds())
|
2021-04-01 04:12:07 +00:00
|
|
|
{
|
|
|
|
out->next();
|
2021-08-01 14:12:34 +00:00
|
|
|
std::chrono::milliseconds ms(query_context->getSettingsRef().sleep_in_send_data_ms.totalMilliseconds());
|
2021-04-01 04:12:07 +00:00
|
|
|
std::this_thread::sleep_for(ms);
|
|
|
|
}
|
|
|
|
|
|
|
|
state.block_out->write(block);
|
|
|
|
state.maybe_compressed_out->next();
|
2021-02-17 17:34:52 +00:00
|
|
|
out->next();
|
|
|
|
}
|
2021-04-01 04:12:07 +00:00
|
|
|
catch (...)
|
|
|
|
{
|
|
|
|
/// In case of unsuccessful write, if the buffer with written data was not flushed,
|
|
|
|
/// we will rollback write to avoid breaking the protocol.
|
|
|
|
/// (otherwise the client will not be able to receive exception after unfinished data
|
|
|
|
/// as it will expect the continuation of the data).
|
|
|
|
/// It looks like hangs on client side or a message like "Data compressed with different methods".
|
2021-02-17 17:34:52 +00:00
|
|
|
|
2021-04-01 04:12:07 +00:00
|
|
|
if (state.compression == Protocol::Compression::Enable)
|
|
|
|
{
|
|
|
|
auto extra_bytes_written_compressed = state.maybe_compressed_out->count() - prev_bytes_written_compressed_out;
|
|
|
|
if (state.maybe_compressed_out->offset() >= extra_bytes_written_compressed)
|
|
|
|
state.maybe_compressed_out->position() -= extra_bytes_written_compressed;
|
|
|
|
}
|
|
|
|
|
|
|
|
auto extra_bytes_written_out = out->count() - prev_bytes_written_out;
|
|
|
|
if (out->offset() >= extra_bytes_written_out)
|
|
|
|
out->position() -= extra_bytes_written_out;
|
|
|
|
|
|
|
|
throw;
|
|
|
|
}
|
2012-03-19 12:57:56 +00:00
|
|
|
}
|
|
|
|
|
2012-05-21 06:49:05 +00:00
|
|
|
|
2018-06-06 20:57:07 +00:00
|
|
|
void TCPHandler::sendLogData(const Block & block)
|
|
|
|
{
|
|
|
|
initLogsBlockOutput(block);
|
|
|
|
|
|
|
|
writeVarUInt(Protocol::Server::Log, *out);
|
|
|
|
/// Send log tag (empty tag is the default tag)
|
|
|
|
writeStringBinary("", *out);
|
|
|
|
|
|
|
|
state.logs_block_out->write(block);
|
|
|
|
out->next();
|
|
|
|
}
|
|
|
|
|
2018-12-04 20:03:04 +00:00
|
|
|
void TCPHandler::sendTableColumns(const ColumnsDescription & columns)
|
|
|
|
{
|
|
|
|
writeVarUInt(Protocol::Server::TableColumns, *out);
|
|
|
|
|
|
|
|
/// Send external table name (empty name is the main table)
|
|
|
|
writeStringBinary("", *out);
|
|
|
|
writeStringBinary(columns.toString(), *out);
|
|
|
|
|
|
|
|
out->next();
|
|
|
|
}
|
2018-06-06 20:57:07 +00:00
|
|
|
|
2018-08-24 07:30:53 +00:00
|
|
|
void TCPHandler::sendException(const Exception & e, bool with_stack_trace)
|
2012-03-19 12:57:56 +00:00
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
writeVarUInt(Protocol::Server::Exception, *out);
|
2018-08-24 07:30:53 +00:00
|
|
|
writeException(e, *out, with_stack_trace);
|
2017-04-01 07:20:54 +00:00
|
|
|
out->next();
|
2012-03-19 12:57:56 +00:00
|
|
|
}
|
|
|
|
|
2012-05-21 06:49:05 +00:00
|
|
|
|
|
|
|
void TCPHandler::sendEndOfStream()
|
2012-05-08 11:19:00 +00:00
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
state.sent_all_data = true;
|
|
|
|
writeVarUInt(Protocol::Server::EndOfStream, *out);
|
|
|
|
out->next();
|
2012-05-08 11:19:00 +00:00
|
|
|
}
|
|
|
|
|
2012-05-21 06:49:05 +00:00
|
|
|
|
2014-10-25 18:33:52 +00:00
|
|
|
void TCPHandler::updateProgress(const Progress & value)
|
2012-03-19 12:57:56 +00:00
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
state.progress.incrementPiecewiseAtomically(value);
|
2013-11-02 21:18:54 +00:00
|
|
|
}
|
2012-05-09 15:15:45 +00:00
|
|
|
|
|
|
|
|
2013-11-02 21:18:54 +00:00
|
|
|
void TCPHandler::sendProgress()
|
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
writeVarUInt(Protocol::Server::Progress, *out);
|
2018-03-09 23:04:26 +00:00
|
|
|
auto increment = state.progress.fetchAndResetPiecewiseAtomically();
|
2020-09-17 12:15:05 +00:00
|
|
|
increment.write(*out, client_tcp_protocol_version);
|
2017-04-01 07:20:54 +00:00
|
|
|
out->next();
|
2012-03-11 08:52:56 +00:00
|
|
|
}
|
|
|
|
|
2012-03-09 15:46:52 +00:00
|
|
|
|
2018-06-06 20:57:07 +00:00
|
|
|
void TCPHandler::sendLogs()
|
|
|
|
{
|
|
|
|
if (!state.logs_queue)
|
|
|
|
return;
|
|
|
|
|
|
|
|
MutableColumns logs_columns;
|
|
|
|
MutableColumns curr_logs_columns;
|
|
|
|
size_t rows = 0;
|
|
|
|
|
|
|
|
for (; state.logs_queue->tryPop(curr_logs_columns); ++rows)
|
|
|
|
{
|
|
|
|
if (rows == 0)
|
|
|
|
{
|
|
|
|
logs_columns = std::move(curr_logs_columns);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
for (size_t j = 0; j < logs_columns.size(); ++j)
|
|
|
|
logs_columns[j]->insertRangeFrom(*curr_logs_columns[j], 0, curr_logs_columns[j]->size());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rows > 0)
|
|
|
|
{
|
2018-06-15 17:32:35 +00:00
|
|
|
Block block = InternalTextLogsQueue::getSampleBlock();
|
2018-06-06 20:57:07 +00:00
|
|
|
block.setColumns(std::move(logs_columns));
|
|
|
|
sendLogData(block);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2012-03-09 15:46:52 +00:00
|
|
|
void TCPHandler::run()
|
|
|
|
{
|
2017-04-01 07:20:54 +00:00
|
|
|
try
|
|
|
|
{
|
|
|
|
runImpl();
|
|
|
|
|
2020-10-10 17:47:34 +00:00
|
|
|
LOG_DEBUG(log, "Done processing connection.");
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
|
|
|
catch (Poco::Exception & e)
|
|
|
|
{
|
|
|
|
/// Timeout - not an error.
|
|
|
|
if (!strcmp(e.what(), "Timeout"))
|
|
|
|
{
|
2020-05-23 22:24:01 +00:00
|
|
|
LOG_DEBUG(log, "Poco::Exception. Code: {}, e.code() = {}, e.displayText() = {}, e.what() = {}", ErrorCodes::POCO_EXCEPTION, e.code(), e.displayText(), e.what());
|
2017-04-01 07:20:54 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
throw;
|
|
|
|
}
|
2012-03-09 15:46:52 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
}
|