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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2011 David Shrewsbury
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include <plugin/slave/queue_thread.h>
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#include <plugin/slave/sql_executor.h>
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#include <drizzled/session.h>
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class QueueConsumer : public QueueThread, public SQLExecutor
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SQLExecutor("slave", "replication"),
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void setSleepInterval(uint32_t seconds)
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_check_interval= seconds;
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uint32_t getSleepInterval()
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return _check_interval;
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* Determines if we should ignore errors from statements pulled from masters.
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void setIgnoreErrors(bool value)
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_ignore_errors= value;
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* Update applier status in state table.
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* @param err_msg Error message string
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* @param status false = STOPPED, true = RUNNING
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void setApplierState(const std::string &err_msg, bool status);
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void addMasterId(uint32_t id)
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_master_ids.push_back(id);
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bool processSingleMaster(const std::string &master_id);
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typedef std::vector<uint64_t> TrxIdList;
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/** Number of seconds to sleep between checking queue for messages */
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uint32_t _check_interval;
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std::vector<uint32_t> _master_ids;
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* Get a list of transaction IDs from the queue that are complete.
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* A "complete" transaction is one in which we have received the end
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* segment of the transaction.
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* @param[in] master_id Identifier of the master we are interested in.
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* @param[out] list The list to populate with transaction IDs.
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* @retval true Success
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* @retval false Error
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bool getListOfCompletedTransactions(const std::string &master_id,
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bool getMessage(drizzled::message::Transaction &transaction,
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std::string &commit_id,
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const std::string &master_id,
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std::string &originating_server_uuid,
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uint64_t &originating_commit_id,
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uint32_t segment_id);
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* Convert the given Transaction message into equivalent SQL.
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* @param[in] transaction Transaction protobuf message to convert.
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* @param[in,out] aggregate_sql Buffer for total SQL for this transaction.
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* @param[in,out] segmented_sql Buffer for carried over segmented statements.
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* @retval true Success
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* @retval false Failure
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bool convertToSQL(const drizzled::message::Transaction &transaction,
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std::vector<std::string> &aggregate_sql,
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std::vector<std::string> &segmented_sql);
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* Execute a batch of SQL statements.
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* @param sql Batch of SQL statements to execute.
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* @param commit_id Commit ID value to store in state table.
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* @param originating_server_uuid Server ID of the master where
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* this SQL was originally applied.
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* @param originating_commit_id Commit ID of the master where
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* this SQL was originally applied.
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* @retval true Success
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* @retval false Failure
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bool executeSQLWithCommitId(std::vector<std::string> &sql,
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const std::string &commit_id,
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const std::string &originating_server_uuid,
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uint64_t originating_commit_id,
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const std::string &master_id);
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* Remove messages for a given transaction from the queue.
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* @param trx_id Transaction ID for the messages to remove.
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* @retval true Success
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* @retval false Failure
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bool deleteFromQueue(const std::string &master_id, uint64_t trx_id);
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* Determine if a Statement message is an end message.
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* @retval true Is an end Statement message
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* @retval false Is NOT an end Statement message
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bool isEndStatement(const drizzled::message::Statement &statement);
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} /* namespace slave */