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确认master和slave上是否开启have_dynamic_loading
master
MASTER(none) 10:54:58>show variables like 'have_dynamic_loading'; +----------------------+-------+| Variable_name | Value |+----------------------+-------+| have_dynamic_loading | YES |+----------------------+-------+
slave
SLAVEtest 10:47:52>show variables like 'have_dynamic_loading'; +----------------------+-------+| Variable_name | Value |+----------------------+-------+| have_dynamic_loading | YES |+----------------------+-------+
使用root在master上安装半同步插件
MASTER(none) 10:58:14>MASTER(none) 10:58:14>install plugin rpl_semi_sync_master soname 'semisync_master.so';Query OK, 0 rows affected (0.01 sec)MASTER(none) 10:58:22>show plugins; +--------------------------+--------+--------------------+--------------------+---------+| Name | Status | Type | Library | License | +--------------------------+--------+--------------------+--------------------+---------+| binlog | ACTIVE | STORAGE ENGINE | NULL | GPL || mysql_native_password | ACTIVE | AUTHENTICATION | NULL | GPL || mysql_old_password | ACTIVE | AUTHENTICATION | NULL | GPL || MRG_MYISAM | ACTIVE | STORAGE ENGINE | NULL | GPL || CSV | ACTIVE | STORAGE ENGINE | NULL | GPL || MEMORY | ACTIVE | STORAGE ENGINE | NULL | GPL || MyISAM | ACTIVE | STORAGE ENGINE | NULL | GPL || InnoDB | ACTIVE | STORAGE ENGINE | NULL | GPL || INNODB_TRX | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_LOCKS | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_LOCK_WAITS | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_CMP | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_CMP_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_CMPMEM | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_CMPMEM_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_BUFFER_PAGE | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_BUFFER_PAGE_LRU | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_BUFFER_POOL_STATS | ACTIVE | INFORMATION SCHEMA | NULL | GPL || BLACKHOLE | ACTIVE | STORAGE ENGINE | NULL | GPL || ARCHIVE | ACTIVE | STORAGE ENGINE | NULL | GPL || FEDERATED | ACTIVE | STORAGE ENGINE | NULL | GPL || PERFORMANCE_SCHEMA | ACTIVE | STORAGE ENGINE | NULL | GPL || partition | ACTIVE | STORAGE ENGINE | NULL | GPL || rpl_semi_sync_master | ACTIVE | REPLICATION | semisync_master.so | GPL |+--------------------------+--------+--------------------+--------------------+---------+
使用root在slave上安装半同步插件
SLAVEtest 10:55:18>install plugin rpl_semi_sync_slave soname 'semisync_slave.so';Query OK, 0 rows affected (0.01 sec)SLAVEtest 10:59:45>show plugins; +--------------------------+--------+--------------------+-------------------+---------+| Name | Status | Type | Library | License | +--------------------------+--------+--------------------+-------------------+---------+| binlog | ACTIVE | STORAGE ENGINE | NULL | GPL || mysql_native_password | ACTIVE | AUTHENTICATION | NULL | GPL || mysql_old_password | ACTIVE | AUTHENTICATION | NULL | GPL || MRG_MYISAM | ACTIVE | STORAGE ENGINE | NULL | GPL || CSV | ACTIVE | STORAGE ENGINE | NULL| GPL || MEMORY | ACTIVE | STORAGE ENGINE | NULL | GPL || MyISAM | ACTIVE | STORAGE ENGINE | NULL | GPL || InnoDB | ACTIVE | STORAGE ENGINE | NULL| GPL || INNODB_TRX | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_LOCKS | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_LOCK_WAITS | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_CMP | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_CMP_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_CMPMEM | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_CMPMEM_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_BUFFER_PAGE | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_BUFFER_PAGE_LRU | ACTIVE | INFORMATION SCHEMA | NULL | GPL || INNODB_BUFFER_POOL_STATS | ACTIVE | INFORMATION SCHEMA | NULL | GPL || BLACKHOLE | ACTIVE | STORAGE ENGINE | NULL | GPL || ARCHIVE | ACTIVE | STORAGE ENGINE | NULL | GPL || FEDERATED | ACTIVE | STORAGE ENGINE | NULL | GPL || PERFORMANCE_SCHEMA | ACTIVE | STORAGE ENGINE | NULL | GPL || partition | ACTIVE | STORAGE ENGINE | NULL| GPL || rpl_semi_sync_slave | ACTIVE | REPLICATION | semisync_slave.so | GPL |+--------------------------+--------+--------------------+-------------------+---------+
分别在master和slave的my.cnf里添加以下配置
master
rpl_semi_sync_master_enabled=1rpl_semi_sync_master_timeout=1000rpl_semi_sync_master_trace_level=32rpl_semi_ sync_master_wait_no_slave=on
slave
rpl_semi_sync_slave_enabled=1
master日志
140203 23:06:17 [Note] Semi-sync replication initialized for transactions.140203 23:06:17 [Note] Semi-sync replication enabled on the master.140203 23:06:17 [Note] Server hostname (bind-address): '0.0.0.0'; port: 30307140203 23:06:17 [Note] - '0.0.0.0' resolves to '0.0.0.0';140203 23:06:17 [Note] Server socket created on IP: '0.0.0.0'.140203 23:06:17 [Warning] 'proxies_priv' entry '@ root@mynode1' ignored in --skip-name-resolve mode.140203 23:06:17 [Note] Event Scheduler: Loaded 0 events140203 23:06:17 [Note] /service/mysql/bin/mysqld: ready for connections.Version: '5.5.34-log' socket: '/data/mysql/mysql.sock' port: 30307 MASTER_DB140203 23:06:17 [Note] Event Scheduler: scheduler thread started with id 1140203 23:06:20 [Note] Start semi-sync binlog_dump to slave (server_id: 2), pos(binlog-master.000010, 290)
slave日志
140203 23:06:20 [Note] Slave I/O thread: Start semi-sync replication to master 'rep@mynode1:30307' in log 'binlog-master.000010' at position 290140203 23:06:20 [Note] Slave SQL thread initialized, starting replication in log 'binlog-master.000010' at position 290, relay log './mynode2-relay-bin. 000029' position: 440140203 23:06:20 [Note] Event Scheduler: scheduler thread started with id 1140203 23:06:20 [Note] Slave I/O thread: connected to master 'rep@mynode1:30307',replication started in log 'binlog-master.000010' at position 290
MASTERtest 11:10:41>show global status like 'rpl%'; +--------------------------------------------+-------------+| Variable_name | Value | +--------------------------------------------+-------------+| Rpl_semi_sync_master_clients | 1 || Rpl_semi_sync_master_net_avg_wait_time | 619 || Rpl_semi_sync_master_net_wait_time | 619 || Rpl_semi_sync_master_net_waits | 1 || Rpl_semi_sync_master_no_times | 0 || Rpl_semi_sync_master_no_tx | 0 || Rpl_semi_sync_master_status | ON || Rpl_semi_sync_master_timefunc_failures | 0 || Rpl_semi_sync_master_tx_avg_wait_time | 734 || Rpl_semi_sync_master_tx_wait_time | 734 || Rpl_semi_sync_master_tx_waits | 1 || Rpl_semi_sync_master_wait_pos_backtraverse | 0 || Rpl_semi_sync_master_wait_sessions | 0 || Rpl_semi_sync_master_yes_tx | 1 || Rpl_status | AUTH_MASTER |+--------------------------------------------+-------------+
SLAVEtest 11:10:02>show global status like 'rpl%'; +----------------------------+-------------+| Variable_name | Value |+----------------------------+-------------+| Rpl_semi_sync_slave_status | ON || Rpl_status | AUTH_MASTER |+----------------------------+-------------+
以上就是MySQL5.5配置安装半同步复制_MySQL的内容，更多相关内容请关注PHP中文网（www.php.cn）！
