mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-13 18:02:24 +00:00
679 lines
27 KiB
C++
679 lines
27 KiB
C++
#include "Server.h"
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#include <memory>
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#include <sys/resource.h>
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#include <errno.h>
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#include <Poco/Version.h>
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#include <Poco/DirectoryIterator.h>
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#include <Poco/Net/HTTPServer.h>
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#include <Poco/Net/NetException.h>
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#include <ext/scope_guard.h>
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#include <common/logger_useful.h>
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#include <common/ErrorHandlers.h>
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#include <common/getMemoryAmount.h>
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#include <Common/ClickHouseRevision.h>
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#include <Common/DNSResolver.h>
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#include <Common/CurrentMetrics.h>
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#include <Common/Macros.h>
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#include <Common/StringUtils/StringUtils.h>
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#include <Common/ZooKeeper/ZooKeeper.h>
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#include <Common/ZooKeeper/ZooKeeperNodeCache.h>
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#include <Common/config.h>
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#include <Common/getFQDNOrHostName.h>
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#include <Common/getMultipleKeysFromConfig.h>
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#include <Common/getNumberOfPhysicalCPUCores.h>
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#include <IO/HTTPCommon.h>
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#include <Interpreters/AsynchronousMetrics.h>
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#include <Interpreters/DDLWorker.h>
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#include <Interpreters/ProcessList.h>
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#include <Interpreters/loadMetadata.h>
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#include <Interpreters/DNSCacheUpdater.h>
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#include <Storages/StorageReplicatedMergeTree.h>
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#include <Storages/System/attachSystemTables.h>
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#include <AggregateFunctions/registerAggregateFunctions.h>
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#include <Functions/registerFunctions.h>
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#include <TableFunctions/registerTableFunctions.h>
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#include <Storages/registerStorages.h>
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#include <Common/Config/ConfigReloader.h>
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#include "HTTPHandlerFactory.h"
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#include "MetricsTransmitter.h"
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#include <Common/StatusFile.h>
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#include "TCPHandlerFactory.h"
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#if USE_POCO_NETSSL
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#include <Poco/Net/Context.h>
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#include <Poco/Net/SecureServerSocket.h>
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#endif
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namespace CurrentMetrics
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{
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extern const Metric Revision;
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}
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int NO_ELEMENTS_IN_CONFIG;
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extern const int SUPPORT_IS_DISABLED;
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extern const int ARGUMENT_OUT_OF_BOUND;
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extern const int EXCESSIVE_ELEMENT_IN_CONFIG;
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}
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static std::string getCanonicalPath(std::string && path)
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{
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Poco::trimInPlace(path);
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if (path.empty())
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throw Exception("path configuration parameter is empty");
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if (path.back() != '/')
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path += '/';
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return std::move(path);
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}
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void Server::uninitialize()
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{
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logger().information("shutting down");
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BaseDaemon::uninitialize();
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}
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void Server::initialize(Poco::Util::Application & self)
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{
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BaseDaemon::initialize(self);
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logger().information("starting up");
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}
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std::string Server::getDefaultCorePath() const
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{
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return getCanonicalPath(config().getString("path")) + "cores";
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}
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int Server::main(const std::vector<std::string> & /*args*/)
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{
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Logger * log = &logger();
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registerFunctions();
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registerAggregateFunctions();
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registerTableFunctions();
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registerStorages();
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CurrentMetrics::set(CurrentMetrics::Revision, ClickHouseRevision::get());
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/** Context contains all that query execution is dependent:
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* settings, available functions, data types, aggregate functions, databases...
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*/
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global_context = std::make_unique<Context>(Context::createGlobal());
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global_context->setGlobalContext(*global_context);
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global_context->setApplicationType(Context::ApplicationType::SERVER);
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bool has_zookeeper = config().has("zookeeper");
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zkutil::ZooKeeperNodeCache main_config_zk_node_cache([&] { return global_context->getZooKeeper(); });
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if (loaded_config.has_zk_includes)
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{
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auto old_configuration = loaded_config.configuration;
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ConfigProcessor config_processor(config_path);
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loaded_config = config_processor.loadConfigWithZooKeeperIncludes(
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main_config_zk_node_cache, /* fallback_to_preprocessed = */ true);
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config_processor.savePreprocessedConfig(loaded_config);
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config().removeConfiguration(old_configuration.get());
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config().add(loaded_config.configuration.duplicate(), PRIO_DEFAULT, false);
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}
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std::string path = getCanonicalPath(config().getString("path"));
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std::string default_database = config().getString("default_database", "default");
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global_context->setPath(path);
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/// Create directories for 'path' and for default database, if not exist.
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Poco::File(path + "data/" + default_database).createDirectories();
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Poco::File(path + "metadata/" + default_database).createDirectories();
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StatusFile status{path + "status"};
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SCOPE_EXIT({
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/** Explicitly destroy Context. It is more convenient than in destructor of Server, because logger is still available.
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* At this moment, no one could own shared part of Context.
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*/
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global_context.reset();
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LOG_DEBUG(log, "Destroyed global context.");
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});
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/// Try to increase limit on number of open files.
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{
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rlimit rlim;
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if (getrlimit(RLIMIT_NOFILE, &rlim))
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throw Poco::Exception("Cannot getrlimit");
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if (rlim.rlim_cur == rlim.rlim_max)
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{
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LOG_DEBUG(log, "rlimit on number of file descriptors is " << rlim.rlim_cur);
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}
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else
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{
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rlim_t old = rlim.rlim_cur;
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rlim.rlim_cur = config().getUInt("max_open_files", rlim.rlim_max);
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int rc = setrlimit(RLIMIT_NOFILE, &rlim);
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if (rc != 0)
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LOG_WARNING(log,
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"Cannot set max number of file descriptors to " << rlim.rlim_cur
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<< ". Try to specify max_open_files according to your system limits. error: "
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<< strerror(errno));
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else
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LOG_DEBUG(log, "Set max number of file descriptors to " << rlim.rlim_cur << " (was " << old << ").");
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}
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}
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static ServerErrorHandler error_handler;
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Poco::ErrorHandler::set(&error_handler);
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/// Initialize DateLUT early, to not interfere with running time of first query.
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LOG_DEBUG(log, "Initializing DateLUT.");
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DateLUT::instance();
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LOG_TRACE(log, "Initialized DateLUT with time zone `" << DateLUT::instance().getTimeZone() << "'.");
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/// Directory with temporary data for processing of heavy queries.
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{
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std::string tmp_path = config().getString("tmp_path", path + "tmp/");
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global_context->setTemporaryPath(tmp_path);
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Poco::File(tmp_path).createDirectories();
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/// Clearing old temporary files.
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Poco::DirectoryIterator dir_end;
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for (Poco::DirectoryIterator it(tmp_path); it != dir_end; ++it)
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{
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if (it->isFile() && startsWith(it.name(), "tmp"))
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{
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LOG_DEBUG(log, "Removing old temporary file " << it->path());
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it->remove();
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}
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}
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}
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/** Directory with 'flags': files indicating temporary settings for the server set by system administrator.
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* Flags may be cleared automatically after being applied by the server.
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* Examples: do repair of local data; clone all replicated tables from replica.
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*/
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{
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Poco::File(path + "flags/").createDirectories();
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global_context->setFlagsPath(path + "flags/");
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}
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/** Directory with user provided files that are usable by 'file' table function.
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*/
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{
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std::string user_files_path = config().getString("user_files_path", path + "user_files/");
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global_context->setUserFilesPath(user_files_path);
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Poco::File(user_files_path).createDirectories();
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}
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if (config().has("interserver_http_port") && config().has("interserver_https_port"))
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throw Exception("Both http and https interserver ports are specified", ErrorCodes::EXCESSIVE_ELEMENT_IN_CONFIG);
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static const auto interserver_tags =
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{
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std::make_tuple("interserver_http_host", "interserver_http_port", "http"),
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std::make_tuple("interserver_https_host", "interserver_https_port", "https")
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};
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for (auto [host_tag, port_tag, scheme] : interserver_tags)
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{
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if (config().has(port_tag))
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{
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String this_host = config().getString(host_tag, "");
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if (this_host.empty())
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{
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this_host = getFQDNOrHostName();
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LOG_DEBUG(log,
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"Configuration parameter '" + String(host_tag) + "' doesn't exist or exists and empty. Will use '" + this_host
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+ "' as replica host.");
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}
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String port_str = config().getString(port_tag);
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int port = parse<int>(port_str);
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if (port < 0 || port > 0xFFFF)
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throw Exception("Out of range '" + String(port_tag) + "': " + toString(port), ErrorCodes::ARGUMENT_OUT_OF_BOUND);
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global_context->setInterserverIOAddress(this_host, port);
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global_context->setInterserverScheme(scheme);
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}
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}
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if (config().has("interserver_http_credentials"))
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{
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String user = config().getString("interserver_http_credentials.user", "");
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String password = config().getString("interserver_http_credentials.password", "");
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if (user.empty())
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throw Exception("Configuration parameter interserver_http_credentials user can't be empty", ErrorCodes::NO_ELEMENTS_IN_CONFIG);
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global_context->setInterserverCredentials(user, password);
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}
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if (config().has("macros"))
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global_context->setMacros(std::make_unique<Macros>(config(), "macros"));
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/// Initialize main config reloader.
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std::string include_from_path = config().getString("include_from", "/etc/metrika.xml");
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auto main_config_reloader = std::make_unique<ConfigReloader>(config_path,
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include_from_path,
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std::move(main_config_zk_node_cache),
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[&](ConfigurationPtr config)
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{
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buildLoggers(*config);
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global_context->setClustersConfig(config);
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global_context->setMacros(std::make_unique<Macros>(*config, "macros"));
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},
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/* already_loaded = */ true);
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/// Initialize users config reloader.
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std::string users_config_path = config().getString("users_config", config_path);
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/// If path to users' config isn't absolute, try guess its root (current) dir.
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/// At first, try to find it in dir of main config, after will use current dir.
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if (users_config_path.empty() || users_config_path[0] != '/')
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{
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std::string config_dir = Poco::Path(config_path).parent().toString();
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if (Poco::File(config_dir + users_config_path).exists())
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users_config_path = config_dir + users_config_path;
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}
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auto users_config_reloader = std::make_unique<ConfigReloader>(users_config_path,
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include_from_path,
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zkutil::ZooKeeperNodeCache([&] { return global_context->getZooKeeper(); }),
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[&](ConfigurationPtr config) { global_context->setUsersConfig(config); },
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/* already_loaded = */ false);
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/// Reload config in SYSTEM RELOAD CONFIG query.
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global_context->setConfigReloadCallback([&]()
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{
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main_config_reloader->reload();
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users_config_reloader->reload();
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});
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/// Limit on total number of concurrently executed queries.
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global_context->getProcessList().setMaxSize(config().getInt("max_concurrent_queries", 0));
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/// Setup protection to avoid accidental DROP for big tables (that are greater than 50 GB by default)
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if (config().has("max_table_size_to_drop"))
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global_context->setMaxTableSizeToDrop(config().getUInt64("max_table_size_to_drop"));
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/// Size of cache for uncompressed blocks. Zero means disabled.
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size_t uncompressed_cache_size = config().getUInt64("uncompressed_cache_size", 0);
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if (uncompressed_cache_size)
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global_context->setUncompressedCache(uncompressed_cache_size);
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/// Load global settings from default_profile and system_profile.
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global_context->setDefaultProfiles(config());
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Settings & settings = global_context->getSettingsRef();
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/// Size of cache for marks (index of MergeTree family of tables). It is necessary.
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size_t mark_cache_size = config().getUInt64("mark_cache_size");
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if (mark_cache_size)
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global_context->setMarkCache(mark_cache_size);
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/// Set path for format schema files
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auto format_schema_path = Poco::File(config().getString("format_schema_path", path + "format_schemas/"));
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global_context->setFormatSchemaPath(format_schema_path.path() + "/");
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format_schema_path.createDirectories();
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LOG_INFO(log, "Loading metadata.");
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loadMetadataSystem(*global_context);
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/// After attaching system databases we can initialize system log.
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global_context->initializeSystemLogs();
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/// After the system database is created, attach virtual system tables (in addition to query_log and part_log)
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attachSystemTablesServer(*global_context->getDatabase("system"), has_zookeeper);
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/// Then, load remaining databases
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loadMetadata(*global_context);
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LOG_DEBUG(log, "Loaded metadata.");
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global_context->setCurrentDatabase(default_database);
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SCOPE_EXIT({
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/** Ask to cancel background jobs all table engines,
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* and also query_log.
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* It is important to do early, not in destructor of Context, because
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* table engines could use Context on destroy.
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*/
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LOG_INFO(log, "Shutting down storages.");
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global_context->shutdown();
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LOG_DEBUG(log, "Shutted down storages.");
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});
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if (has_zookeeper && config().has("distributed_ddl"))
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{
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/// DDL worker should be started after all tables were loaded
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String ddl_zookeeper_path = config().getString("distributed_ddl.path", "/clickhouse/task_queue/ddl/");
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global_context->setDDLWorker(std::make_shared<DDLWorker>(ddl_zookeeper_path, *global_context, &config(), "distributed_ddl"));
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}
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std::unique_ptr<DNSCacheUpdater> dns_cache_updater;
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if (config().has("disable_internal_dns_cache") && config().getInt("disable_internal_dns_cache"))
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{
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/// Disable DNS caching at all
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DNSResolver::instance().setDisableCacheFlag();
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}
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else
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{
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/// Initialize a watcher updating DNS cache in case of network errors
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dns_cache_updater = std::make_unique<DNSCacheUpdater>(*global_context);
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}
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{
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Poco::Timespan keep_alive_timeout(config().getUInt("keep_alive_timeout", 10), 0);
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Poco::ThreadPool server_pool(3, config().getUInt("max_connections", 1024));
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Poco::Net::HTTPServerParams::Ptr http_params = new Poco::Net::HTTPServerParams;
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http_params->setTimeout(settings.http_receive_timeout);
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http_params->setKeepAliveTimeout(keep_alive_timeout);
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std::vector<std::unique_ptr<Poco::Net::TCPServer>> servers;
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std::vector<std::string> listen_hosts = DB::getMultipleValuesFromConfig(config(), "", "listen_host");
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bool listen_try = config().getBool("listen_try", false);
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if (listen_hosts.empty())
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{
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listen_hosts.emplace_back("::1");
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listen_hosts.emplace_back("127.0.0.1");
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listen_try = true;
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}
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auto make_socket_address = [&](const std::string & host, UInt16 port)
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{
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Poco::Net::SocketAddress socket_address;
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try
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{
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socket_address = Poco::Net::SocketAddress(host, port);
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}
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catch (const Poco::Net::DNSException & e)
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{
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const auto code = e.code();
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if (code == EAI_FAMILY
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#if defined(EAI_ADDRFAMILY)
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|| code == EAI_ADDRFAMILY
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#endif
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)
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{
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LOG_ERROR(log,
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"Cannot resolve listen_host (" << host << "), error " << e.code() << ": " << e.message() << ". "
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"If it is an IPv6 address and your host has disabled IPv6, then consider to "
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"specify IPv4 address to listen in <listen_host> element of configuration "
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"file. Example: <listen_host>0.0.0.0</listen_host>");
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}
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throw;
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}
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return socket_address;
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};
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auto socket_bind_listen = [&](auto & socket, const std::string & host, UInt16 port, bool secure = 0)
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{
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auto address = make_socket_address(host, port);
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#if !POCO_CLICKHOUSE_PATCH || POCO_VERSION <= 0x02000000 // TODO: fill correct version
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if (secure)
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/// Bug in old poco, listen() after bind() with reusePort param will fail because have no implementation in SecureServerSocketImpl
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/// https://github.com/pocoproject/poco/pull/2257
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socket.bind(address, /* reuseAddress = */ true);
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else
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#endif
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#if POCO_VERSION < 0x01080000
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socket.bind(address, /* reuseAddress = */ true);
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#else
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socket.bind(address, /* reuseAddress = */ true, /* reusePort = */ config().getBool("listen_reuse_port", false));
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#endif
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socket.listen(/* backlog = */ config().getUInt("listen_backlog", 64));
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return address;
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};
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for (const auto & listen_host : listen_hosts)
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{
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/// For testing purposes, user may omit tcp_port or http_port or https_port in configuration file.
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try
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{
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/// HTTP
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if (config().has("http_port"))
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{
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Poco::Net::ServerSocket socket;
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auto address = socket_bind_listen(socket, listen_host, config().getInt("http_port"));
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socket.setReceiveTimeout(settings.http_receive_timeout);
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socket.setSendTimeout(settings.http_send_timeout);
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servers.emplace_back(new Poco::Net::HTTPServer(
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new HTTPHandlerFactory(*this, "HTTPHandler-factory"),
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server_pool,
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socket,
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http_params));
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LOG_INFO(log, "Listening http://" + address.toString());
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}
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/// HTTPS
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if (config().has("https_port"))
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{
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#if USE_POCO_NETSSL
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initSSL();
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Poco::Net::SecureServerSocket socket;
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auto address = socket_bind_listen(socket, listen_host, config().getInt("https_port"), /* secure = */ true);
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socket.setReceiveTimeout(settings.http_receive_timeout);
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socket.setSendTimeout(settings.http_send_timeout);
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servers.emplace_back(new Poco::Net::HTTPServer(
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new HTTPHandlerFactory(*this, "HTTPSHandler-factory"),
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server_pool,
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socket,
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http_params));
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LOG_INFO(log, "Listening https://" + address.toString());
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#else
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throw Exception{"HTTPS protocol is disabled because Poco library was built without NetSSL support.",
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ErrorCodes::SUPPORT_IS_DISABLED};
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#endif
|
|
}
|
|
|
|
/// TCP
|
|
if (config().has("tcp_port"))
|
|
{
|
|
Poco::Net::ServerSocket socket;
|
|
auto address = socket_bind_listen(socket, listen_host, config().getInt("tcp_port"));
|
|
socket.setReceiveTimeout(settings.receive_timeout);
|
|
socket.setSendTimeout(settings.send_timeout);
|
|
servers.emplace_back(new Poco::Net::TCPServer(
|
|
new TCPHandlerFactory(*this),
|
|
server_pool,
|
|
socket,
|
|
new Poco::Net::TCPServerParams));
|
|
|
|
LOG_INFO(log, "Listening tcp: " + address.toString());
|
|
}
|
|
|
|
/// TCP with SSL
|
|
if (config().has("tcp_port_secure"))
|
|
{
|
|
#if USE_POCO_NETSSL
|
|
initSSL();
|
|
Poco::Net::SecureServerSocket socket;
|
|
auto address = socket_bind_listen(socket, listen_host, config().getInt("tcp_port_secure"), /* secure = */ true);
|
|
socket.setReceiveTimeout(settings.receive_timeout);
|
|
socket.setSendTimeout(settings.send_timeout);
|
|
servers.emplace_back(new Poco::Net::TCPServer(
|
|
new TCPHandlerFactory(*this, /* secure= */ true ),
|
|
server_pool,
|
|
socket,
|
|
new Poco::Net::TCPServerParams));
|
|
LOG_INFO(log, "Listening tcp_secure: " + address.toString());
|
|
#else
|
|
throw Exception{"SSL support for TCP protocol is disabled because Poco library was built without NetSSL support.",
|
|
ErrorCodes::SUPPORT_IS_DISABLED};
|
|
#endif
|
|
}
|
|
|
|
/// At least one of TCP and HTTP servers must be created.
|
|
if (servers.empty())
|
|
throw Exception("No 'tcp_port' and 'http_port' is specified in configuration file.", ErrorCodes::NO_ELEMENTS_IN_CONFIG);
|
|
|
|
/// Interserver IO HTTP
|
|
if (config().has("interserver_http_port"))
|
|
{
|
|
Poco::Net::ServerSocket socket;
|
|
auto address = socket_bind_listen(socket, listen_host, config().getInt("interserver_http_port"));
|
|
socket.setReceiveTimeout(settings.http_receive_timeout);
|
|
socket.setSendTimeout(settings.http_send_timeout);
|
|
servers.emplace_back(new Poco::Net::HTTPServer(
|
|
new InterserverIOHTTPHandlerFactory(*this, "InterserverIOHTTPHandler-factory"),
|
|
server_pool,
|
|
socket,
|
|
http_params));
|
|
|
|
LOG_INFO(log, "Listening interserver http: " + address.toString());
|
|
}
|
|
|
|
if (config().has("interserver_https_port"))
|
|
{
|
|
#if USE_POCO_NETSSL
|
|
initSSL();
|
|
Poco::Net::SecureServerSocket socket;
|
|
auto address = socket_bind_listen(socket, listen_host, config().getInt("interserver_https_port"), /* secure = */ true);
|
|
socket.setReceiveTimeout(settings.http_receive_timeout);
|
|
socket.setSendTimeout(settings.http_send_timeout);
|
|
servers.emplace_back(new Poco::Net::HTTPServer(
|
|
new InterserverIOHTTPHandlerFactory(*this, "InterserverIOHTTPHandler-factory"),
|
|
server_pool,
|
|
socket,
|
|
http_params));
|
|
|
|
LOG_INFO(log, "Listening interserver https: " + address.toString());
|
|
#else
|
|
throw Exception{"SSL support for TCP protocol is disabled because Poco library was built without NetSSL support.",
|
|
ErrorCodes::SUPPORT_IS_DISABLED};
|
|
#endif
|
|
}
|
|
}
|
|
catch (const Poco::Net::NetException & e)
|
|
{
|
|
if (listen_try)
|
|
LOG_ERROR(log, "Listen [" << listen_host << "]: " << e.code() << ": " << e.what() << ": " << e.message()
|
|
<< " If it is an IPv6 or IPv4 address and your host has disabled IPv6 or IPv4, then consider to "
|
|
"specify not disabled IPv4 or IPv6 address to listen in <listen_host> element of configuration "
|
|
"file. Example for disabled IPv6: <listen_host>0.0.0.0</listen_host> ."
|
|
" Example for disabled IPv4: <listen_host>::</listen_host>");
|
|
else
|
|
throw;
|
|
}
|
|
}
|
|
|
|
if (servers.empty())
|
|
throw Exception("No servers started (add valid listen_host and 'tcp_port' or 'http_port' to configuration file.)", ErrorCodes::NO_ELEMENTS_IN_CONFIG);
|
|
|
|
for (auto & server : servers)
|
|
server->start();
|
|
|
|
main_config_reloader->start();
|
|
users_config_reloader->start();
|
|
|
|
{
|
|
std::stringstream message;
|
|
message << "Available RAM = " << formatReadableSizeWithBinarySuffix(getMemoryAmount()) << ";"
|
|
<< " physical cores = " << getNumberOfPhysicalCPUCores() << ";"
|
|
// on ARM processors it can show only enabled at current moment cores
|
|
<< " threads = " << std::thread::hardware_concurrency() << ".";
|
|
LOG_INFO(log, message.str());
|
|
}
|
|
|
|
LOG_INFO(log, "Ready for connections.");
|
|
|
|
SCOPE_EXIT({
|
|
LOG_DEBUG(log, "Received termination signal.");
|
|
LOG_DEBUG(log, "Waiting for current connections to close.");
|
|
|
|
is_cancelled = true;
|
|
|
|
int current_connections = 0;
|
|
for (auto & server : servers)
|
|
{
|
|
server->stop();
|
|
current_connections += server->currentConnections();
|
|
}
|
|
|
|
LOG_DEBUG(log,
|
|
"Closed all listening sockets."
|
|
<< (current_connections ? " Waiting for " + toString(current_connections) + " outstanding connections." : ""));
|
|
|
|
if (current_connections)
|
|
{
|
|
const int sleep_max_ms = 1000 * config().getInt("shutdown_wait_unfinished", 5);
|
|
const int sleep_one_ms = 100;
|
|
int sleep_current_ms = 0;
|
|
while (sleep_current_ms < sleep_max_ms)
|
|
{
|
|
current_connections = 0;
|
|
for (auto & server : servers)
|
|
current_connections += server->currentConnections();
|
|
if (!current_connections)
|
|
break;
|
|
sleep_current_ms += sleep_one_ms;
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(sleep_one_ms));
|
|
}
|
|
}
|
|
|
|
LOG_DEBUG(
|
|
log, "Closed connections." << (current_connections ? " But " + toString(current_connections) + " remains."
|
|
" Tip: To increase wait time add to config: <shutdown_wait_unfinished>60</shutdown_wait_unfinished>" : ""));
|
|
|
|
main_config_reloader.reset();
|
|
users_config_reloader.reset();
|
|
});
|
|
|
|
/// try to load dictionaries immediately, throw on error and die
|
|
try
|
|
{
|
|
if (!config().getBool("dictionaries_lazy_load", true))
|
|
{
|
|
global_context->tryCreateEmbeddedDictionaries();
|
|
global_context->tryCreateExternalDictionaries();
|
|
}
|
|
}
|
|
catch (...)
|
|
{
|
|
LOG_ERROR(log, "Caught exception while loading dictionaries.");
|
|
throw;
|
|
}
|
|
|
|
/// This object will periodically calculate some metrics.
|
|
AsynchronousMetrics async_metrics(*global_context);
|
|
attachSystemTablesAsync(*global_context->getDatabase("system"), async_metrics);
|
|
|
|
std::vector<std::unique_ptr<MetricsTransmitter>> metrics_transmitters;
|
|
for (const auto & graphite_key : DB::getMultipleKeysFromConfig(config(), "", "graphite"))
|
|
{
|
|
metrics_transmitters.emplace_back(std::make_unique<MetricsTransmitter>(
|
|
*global_context, async_metrics, graphite_key));
|
|
}
|
|
|
|
SessionCleaner session_cleaner(*global_context);
|
|
|
|
waitForTerminationRequest();
|
|
}
|
|
|
|
return Application::EXIT_OK;
|
|
}
|
|
}
|
|
|
|
int mainEntryClickHouseServer(int argc, char ** argv)
|
|
{
|
|
DB::Server app;
|
|
try
|
|
{
|
|
return app.run(argc, argv);
|
|
}
|
|
catch (...)
|
|
{
|
|
std::cerr << DB::getCurrentExceptionMessage(true) << "\n";
|
|
auto code = DB::getCurrentExceptionCode();
|
|
return code ? code : 1;
|
|
}
|
|
}
|