mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-29 02:52:13 +00:00
dbms: development [#CONV-2944].
This commit is contained in:
parent
e3174f6884
commit
b1815b9278
@ -19,6 +19,7 @@ public:
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Exception(const std::string & msg, const std::string & arg, int code = 0);
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Exception(const std::string & msg, const Exception & exc, int code = 0);
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Exception(const Exception & exc);
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explicit Exception(const Poco::Exception & exc);
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~Exception() throw();
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Exception & operator = (const Exception & exc);
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const char * name() const throw();
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@ -432,4 +432,13 @@ inline void skipWhitespaceIfAny(ReadBuffer & buf)
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++buf.position();
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}
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/** Прочитать сериализованный эксепшен.
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* При сериализации/десериализации часть информации теряется
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* (тип обрезается до базового, message заменяется на displayText, и stack trace дописывается в message)
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* К нему может быть добавлено дополнительное сообщение (например, вы можете указать, откуда оно было прочитано).
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*/
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void readException(Exception & e, ReadBuffer & buf, const String & additional_message = "");
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void readAndThrowException(ReadBuffer & buf, const String & additional_message = "");
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}
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@ -437,4 +437,8 @@ inline void writeQuoted(const mysqlxx::DateTime & x, WriteBuffer & buf)
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}
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/// Сериализация эксепшена (чтобы его можно было передать по сети)
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void writeException(const Exception & e, WriteBuffer & buf);
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}
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@ -1,3 +1,4 @@
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#include <unistd.h>
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#include <stdlib.h>
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#include <fcntl.h>
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@ -54,13 +55,16 @@ using Poco::SharedPtr;
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class Client : public Poco::Util::Application
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{
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public:
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Client() : socket(), in(socket), out(socket), query_id(0), compression(Protocol::Compression::Enable),
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Client() : is_interactive(true), stdin_is_not_tty(false), socket(), in(socket), out(socket), query_id(0), compression(Protocol::Compression::Enable),
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format_max_block_size(0), std_out(STDOUT_FILENO), received_rows(0) {}
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private:
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typedef std::tr1::unordered_set<String> StringSet;
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StringSet exit_strings;
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bool is_interactive; /// Использовать readline интерфейс или batch режим.
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bool stdin_is_not_tty; /// stdin - не терминал.
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Poco::Net::StreamSocket socket;
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ReadBufferFromPocoSocket in;
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WriteBufferFromPocoSocket out;
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@ -115,7 +119,7 @@ private:
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const char * home_path_cstr = getenv("HOME");
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if (!home_path_cstr)
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throw DB::Exception("Cannot get HOME environment variable");
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throw Exception("Cannot get HOME environment variable");
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else
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home_path = home_path_cstr;
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@ -171,23 +175,36 @@ private:
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int mainImpl(const std::vector<std::string> & args)
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{
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std::cout << std::fixed << std::setprecision(3);
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/** Будем работать в batch режиме, если выполнено одно из следующих условий:
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* - задан параметр -e (--query)
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* (в этом случае - запрос или несколько запросов берём оттуда;
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* а если при этом stdin не терминал, то берём оттуда данные для INSERT-а первого запроса).
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* - stdin - не терминал (в этом случае, считываем оттуда запросы);
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*/
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stdin_is_not_tty = !isatty(STDIN_FILENO);
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if (stdin_is_not_tty || config().has("query"))
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is_interactive = false;
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std::cout << "ClickHouse client version " << DBMS_VERSION_MAJOR
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<< "." << DBMS_VERSION_MINOR
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<< "." << Revision::get()
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<< "." << std::endl;
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std::cout << std::fixed << std::setprecision(3);
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std::cerr << std::fixed << std::setprecision(3);
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if (is_interactive)
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std::cout << "ClickHouse client version " << DBMS_VERSION_MAJOR
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<< "." << DBMS_VERSION_MINOR
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<< "." << Revision::get()
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<< "." << std::endl;
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compression = config().getBool("compression", true) ? Protocol::Compression::Enable : Protocol::Compression::Disable;
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in_format = config().getString("in_format", "Native");
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out_format = config().getString("out_format", "Native");
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format = config().getString("format", "Pretty");
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format = config().getString("format", is_interactive ? "PrettyCompact" : "TabSeparated");
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format_max_block_size = config().getInt("format_max_block_size", DEFAULT_BLOCK_SIZE);
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String host = config().getString("host", "localhost");
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UInt16 port = config().getInt("port", 9000);
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std::cout << "Connecting to " << host << ":" << port << "." << std::endl;
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if (is_interactive)
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std::cout << "Connecting to " << host << ":" << port << "." << std::endl;
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socket.connect(Poco::Net::SocketAddress(host, port));
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@ -207,33 +224,39 @@ private:
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readVarUInt(server_version_minor, in);
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readVarUInt(server_revision, in);
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std::cout << "Connected to " << server_name
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<< " server version " << server_version_major
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<< "." << server_version_minor
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<< "." << server_revision
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<< "." << std::endl << std::endl;
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if (is_interactive)
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std::cout << "Connected to " << server_name
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<< " server version " << server_version_major
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<< "." << server_version_minor
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<< "." << server_revision
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<< "." << std::endl << std::endl;
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context.format_factory = new FormatFactory();
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context.data_type_factory = new DataTypeFactory();
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/// Отключаем tab completion.
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rl_bind_key('\t', rl_insert);
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/// Загружаем историю команд, если есть.
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history_file = config().getString("history_file", home_path + "/.clickhouse-client-history");
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if (Poco::File(history_file).exists())
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if (is_interactive)
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{
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int res = read_history(history_file.c_str());
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if (res)
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throwFromErrno("Cannot read history from file " + history_file, ErrorCodes::CANNOT_READ_HISTORY);
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}
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else /// Создаём файл с историей.
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Poco::File(history_file).createFile();
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loop();
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/// Отключаем tab completion.
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rl_bind_key('\t', rl_insert);
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/// Загружаем историю команд, если есть.
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history_file = config().getString("history_file", home_path + "/.clickhouse-client-history");
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if (Poco::File(history_file).exists())
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{
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int res = read_history(history_file.c_str());
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if (res)
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throwFromErrno("Cannot read history from file " + history_file, ErrorCodes::CANNOT_READ_HISTORY);
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}
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else /// Создаём файл с историей.
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Poco::File(history_file).createFile();
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loop();
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std::cout << "Bye." << std::endl;
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}
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else
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nonInteractive();
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std::cout << "Bye." << std::endl;
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return 0;
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}
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@ -260,6 +283,17 @@ private:
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}
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void nonInteractive()
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{
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if (config().has("query"))
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process(config().getString("query"));
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else
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{
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}
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}
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bool process(const String & line)
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{
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if (exit_strings.end() != exit_strings.find(line))
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@ -276,9 +310,10 @@ private:
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sendQuery();
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receiveResult();
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std::cout << std::endl
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<< received_rows << " rows in set. Elapsed: " << watch.elapsedSeconds() << " sec."
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<< std::endl << std::endl;
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if (is_interactive)
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std::cout << std::endl
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<< received_rows << " rows in set. Elapsed: " << watch.elapsedSeconds() << " sec."
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<< std::endl << std::endl;
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block_in = NULL;
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maybe_compressed_in = NULL;
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@ -302,7 +337,7 @@ private:
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/// Распарсенный запрос должен заканчиваться на конец входных данных или на точку с запятой.
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if (!parse_res || (pos != end && *pos != ';'))
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{
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std::cout << "Syntax error: failed at position "
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std::cerr << "Syntax error: failed at position "
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<< (pos - begin) << ": "
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<< std::string(pos, std::min(SHOW_CHARS_ON_SYNTAX_ERROR, end - pos))
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<< ", expected " << (parse_res ? "end of query" : expected) << "."
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@ -311,9 +346,12 @@ private:
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return false;
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}
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std::cout << std::endl;
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formatAST(*parsed_query, std::cout);
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std::cout << std::endl << std::endl;
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if (is_interactive)
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{
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std::cout << std::endl;
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formatAST(*parsed_query, std::cout);
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std::cout << std::endl << std::endl;
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}
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return true;
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}
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@ -356,6 +394,10 @@ private:
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case Protocol::Server::Data:
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return receiveData();
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case Protocol::Server::Exception:
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receiveException();
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return false;
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default:
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throw Exception("Unknown packet from server", ErrorCodes::UNKNOWN_PACKET_FROM_SERVER);
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}
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@ -404,6 +446,16 @@ private:
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else
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return false;
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}
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void receiveException()
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{
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Exception e;
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readException(e, in);
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std::cerr << "Received exception from server:" << std::endl
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<< "Code: " << e.code() << ". " << e.displayText();
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}
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void defineOptions(Poco::Util::OptionSet & options)
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@ -430,6 +482,13 @@ private:
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.repeatable(false)
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.argument("<number>")
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.binding("port"));
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options.addOption(
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Poco::Util::Option("query", "e")
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.required(false)
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.repeatable(false)
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.argument("<string>")
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.binding("query"));
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}
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};
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Exception::Exception(const std::string & msg, const std::string & arg, int code): Poco::Exception(msg, arg, code) {}
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Exception::Exception(const std::string & msg, const Exception & exc, int code): Poco::Exception(msg, exc, code), trace(exc.trace) {}
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Exception::Exception(const Exception & exc) : Poco::Exception(exc), trace(exc.trace) {}
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Exception::Exception(const Poco::Exception & exc) : Poco::Exception(exc) {}
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Exception::~Exception() throw() {}
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Exception & Exception::operator=(const Exception& exc)
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@ -1,5 +1,8 @@
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#include <sstream>
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#include <DB/IO/ReadHelpers.h>
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namespace DB
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{
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@ -121,4 +124,47 @@ void readBackQuotedString(String & s, ReadBuffer & buf)
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readAnyQuotedString<'`'>(s, buf);
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}
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void readException(Exception & e, ReadBuffer & buf, const String & additional_message)
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{
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int code = 0;
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String name;
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String message;
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String stack_trace;
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bool has_nested = false;
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readBinary(code, buf);
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readBinary(name, buf);
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readBinary(message, buf);
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readBinary(stack_trace, buf);
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readBinary(has_nested, buf);
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std::stringstream message_stream;
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if (!additional_message.empty())
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message_stream << additional_message << ". ";
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if (name != "DB::Exception")
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message_stream << name << ". ";
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message_stream << message
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<< ". Stack trace:\n\n" << stack_trace;
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if (has_nested)
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{
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Exception nested;
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readException(nested, buf);
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e = Exception(message_stream.str(), nested, code);
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}
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else
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e = Exception(message_stream.str(), code);
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}
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void readAndThrowException(ReadBuffer & buf, const String & additional_message)
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{
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Exception e;
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readException(e, buf, additional_message);
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e.rethrow();
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}
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}
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@ -3,4 +3,18 @@
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namespace DB
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{
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void writeException(const Exception & e, WriteBuffer & buf)
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{
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writeBinary(e.code(), buf);
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writeBinary(String(e.name()), buf);
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writeBinary(e.message(), buf);
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writeBinary(e.getStackTrace().toString(), buf);
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bool has_nested = e.nested() != NULL;
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writeBinary(has_nested, buf);
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if (has_nested)
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writeException(Exception(*e.nested()), buf);
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}
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}
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@ -32,29 +32,58 @@ void TCPHandler::runImpl()
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while (!in.eof())
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{
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/// Пакет с запросом.
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receivePacket(in);
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LOG_DEBUG(log, "Query ID: " << state.query_id);
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LOG_DEBUG(log, "Query: " << state.query);
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LOG_DEBUG(log, "In format: " << state.in_format);
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LOG_DEBUG(log, "Out format: " << state.out_format);
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Stopwatch watch;
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/// Читаем из сети данные для INSERT-а, если надо, и вставляем их.
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if (state.io.out)
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try
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{
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while (receivePacket(in))
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;
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/// Пакет с запросом.
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receivePacket(in);
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LOG_DEBUG(log, "Query ID: " << state.query_id);
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LOG_DEBUG(log, "Query: " << state.query);
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LOG_DEBUG(log, "In format: " << state.in_format);
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LOG_DEBUG(log, "Out format: " << state.out_format);
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state.exception = NULL;
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/// Читаем из сети данные для INSERT-а, если надо, и вставляем их.
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if (state.io.out)
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{
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while (receivePacket(in))
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;
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}
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/// Вынимаем результат выполнения запроса, если есть, и пишем его в сеть.
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if (state.io.in)
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{
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while (sendData(out, out_for_chunks))
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;
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}
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}
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catch (DB::Exception & e)
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{
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LOG_ERROR(log, "DB::Exception. Code: " << e.code() << ", e.displayText() = " << e.displayText()
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<< ", Stack trace:\n\n" << e.getStackTrace().toString());
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state.exception = e.clone();
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}
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catch (Poco::Exception & e)
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{
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LOG_ERROR(log, "Poco::Exception. Code: " << ErrorCodes::POCO_EXCEPTION << ", e.code() = " << e.code() << ", e.displayText() = " << e.displayText());
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state.exception = new Exception(e.message(), e.code());
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}
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catch (std::exception & e)
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{
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LOG_ERROR(log, "std::exception. Code: " << ErrorCodes::STD_EXCEPTION << ", e.what() = " << e.what());
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state.exception = new Exception(e.what(), ErrorCodes::STD_EXCEPTION);
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}
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catch (...)
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{
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LOG_ERROR(log, "Unknown exception. Code: " << ErrorCodes::UNKNOWN_EXCEPTION);
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state.exception = new Exception("Unknown exception", ErrorCodes::UNKNOWN_EXCEPTION);
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}
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/// Вынимаем результат выполнения запроса, если есть, и пишем его в сеть.
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if (state.io.in)
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{
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while (sendData(out, out_for_chunks))
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;
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}
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if (state.exception)
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sendException(out);
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watch.stop();
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@ -187,7 +216,9 @@ bool TCPHandler::sendData(WriteBuffer & out, WriteBuffer & out_for_chunks)
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void TCPHandler::sendException(WriteBuffer & out)
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{
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/// TODO
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writeVarUInt(Protocol::Server::Exception, out);
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writeException(*state.exception, out);
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out.next();
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}
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void TCPHandler::sendProgress(WriteBuffer & out)
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@ -44,6 +44,12 @@ struct QueryState
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Context context;
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/** Исключение во время выполнения запроса (его надо отдать по сети клиенту).
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* Клиент сможет его принять, если оно не произошло во время отправки другого пакета.
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*/
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SharedPtr<Exception> exception;
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QueryState() : query_id(0), stage(Protocol::QueryProcessingStage::Complete), compression(Protocol::Compression::Disable) {}
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void reset()
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