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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2011 David Shrewsbury
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <plugin/slave/replication_schema.h>
#include <drizzled/execute.h>
#include <drizzled/sql/result_set.h>
#include <string>
#include <vector>
#include <boost/lexical_cast.hpp>
using namespace std;
using namespace drizzled;
using namespace boost;
namespace slave
{
bool ReplicationSchema::create()
{
vector<string> sql;
sql.push_back("COMMIT");
sql.push_back("CREATE SCHEMA IF NOT EXISTS `sys_replication` REPLICATE=FALSE");
if (not executeSQL(sql))
return false;
/*
Create our IO thread state information table if we need to.
*/
/*
Table: io_state
Version 1.0: Initial definition
Version 1.1: Added master_id and PK on master_id
*/
sql.clear();
sql.push_back("COMMIT");
sql.push_back("CREATE TABLE IF NOT EXISTS `sys_replication`.`io_state` ("
" `master_id` BIGINT NOT NULL,"
" `status` VARCHAR(20) NOT NULL,"
" `error_msg` VARCHAR(250))"
" COMMENT = 'VERSION 1.1'");
if (not executeSQL(sql))
return false;
/*
* Create our applier thread state information table if we need to.
*/
/*
* Table: applier_state
* Version 1.0: Initial definition
* Version 1.1: Added originating_server_uuid and originating_commit_id
* Version 1.2: Added master_id and changed PK to master_id
*/
sql.clear();
sql.push_back("COMMIT");
sql.push_back("CREATE TABLE IF NOT EXISTS `sys_replication`.`applier_state`"
" (`master_id` BIGINT NOT NULL,"
" `last_applied_commit_id` BIGINT NOT NULL,"
" `originating_server_uuid` VARCHAR(36) NOT NULL,"
" `originating_commit_id` BIGINT NOT NULL,"
" `status` VARCHAR(20) NOT NULL,"
" `error_msg` VARCHAR(250))"
" COMMENT = 'VERSION 1.2'");
if (not executeSQL(sql))
return false;
/*
* Create our message queue table if we need to.
* Version 1.0: Initial definition
* Version 1.1: Added originating_server_uuid and originating_commit_id
* Version 1.2: Added master_id and changed PK to (master_id, trx_id, seg_id)
*/
sql.clear();
sql.push_back("COMMIT");
sql.push_back("CREATE TABLE IF NOT EXISTS `sys_replication`.`queue`"
" (`trx_id` BIGINT NOT NULL, `seg_id` INT NOT NULL,"
" `commit_order` BIGINT,"
" `originating_server_uuid` VARCHAR(36) NOT NULL,"
" `originating_commit_id` BIGINT NOT NULL,"
" `msg` BLOB,"
" `master_id` BIGINT NOT NULL,"
" PRIMARY KEY(`master_id`, `trx_id`, `seg_id`))"
" COMMENT = 'VERSION 1.2'");
if (not executeSQL(sql))
return false;
return true;
}
bool ReplicationSchema::createInitialIORow(uint32_t master_id)
{
vector<string> sql;
sql.push_back("SELECT COUNT(*) FROM `sys_replication`.`io_state` WHERE `master_id` = " + boost::lexical_cast<string>(master_id));
sql::ResultSet result_set(1);
Execute execute(*(_session.get()), true);
execute.run(sql[0], result_set);
result_set.next();
string count= result_set.getString(0);
if (count == "0")
{
sql.clear();
sql.push_back("INSERT INTO `sys_replication`.`io_state` (`master_id`, `status`) VALUES ("
+ boost::lexical_cast<string>(master_id)
+ ", 'STOPPED')");
if (not executeSQL(sql))
return false;
}
return true;
}
bool ReplicationSchema::createInitialApplierRow(uint32_t master_id)
{
vector<string> sql;
sql.push_back("SELECT COUNT(*) FROM `sys_replication`.`applier_state` WHERE `master_id` = " + boost::lexical_cast<string>(master_id));
sql::ResultSet result_set(1);
Execute execute(*(_session.get()), true);
execute.run(sql[0], result_set);
result_set.next();
string count= result_set.getString(0);
if (count == "0")
{
sql.clear();
sql.push_back("INSERT INTO `sys_replication`.`applier_state`"
" (`master_id`, `last_applied_commit_id`,"
" `originating_server_uuid`, `originating_commit_id`,"
" `status`) VALUES ("
+ boost::lexical_cast<string>(master_id)
+ ",0,"
+ "'" + _session.get()->getServerUUID() + "'"
+ ",0,'STOPPED')");
if (not executeSQL(sql))
return false;
}
return true;
}
bool ReplicationSchema::setInitialMaxCommitId(uint32_t master_id, uint64_t value)
{
vector<string> sql;
sql.push_back("UPDATE `sys_replication`.`applier_state`"
" SET `last_applied_commit_id` = "
+ lexical_cast<string>(value)
+ " WHERE `master_id` = "
+ lexical_cast<string>(master_id));
return executeSQL(sql);
}
} /* namespace slave */
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