概述
- Manager工具包
| 脚本名称 | 作用 |
|---|---|
| masterha_check_repl | 主从复制检查 |
| masterha_check_ssh | 互信检查 |
| masterha_check_status | 运行状态检查 |
| masterha_conf_host | 手工添加server信息 |
| masterha_manager | MHA启动 |
| masterha_master_monitor | 监控master是否宕机 |
| masterha_master_switch | 手工故障转移 |
| masterha_secondary_check | 多路由监测Master可用性 |
| masterha_stop | 停止MHA |
-
Node工具包
-
Node工具包由MHA自动调用,本文中并不提供演示实例.
| 脚本名称 | 作用 |
|---|---|
| apply_diff_relay_logs | 识别差异的中继日志事件并应用于其它slave |
| filter_mysqlbinlog | 去除不必要的ROLLBACK事件 |
| purge_relay_logs | 清除中继日志(不会阻塞SQL线程) |
| save_binary_logs | 保存和复制master的二进制日志。 |
Manager工具包
masterha_check_repl
[root@node3 mha]# /etc/mha/mhamanager/bin/masterha_check_repl --conf=/etc/mha/app1/app1.cnf
Fri Aug 24 02:00:33 2018 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.
Fri Aug 24 02:00:33 2018 - [info] Reading application default configuration from /etc/mha/app1/app1.cnf..
Fri Aug 24 02:00:33 2018 - [info] Reading server configuration from /etc/mha/app1/app1.cnf..
Fri Aug 24 02:00:33 2018 - [info] MHA::MasterMonitor version 0.57.
Fri Aug 24 02:00:33 2018 - [info] GTID failover mode = 0
Fri Aug 24 02:00:33 2018 - [info] Dead Servers:
Fri Aug 24 02:00:33 2018 - [info] Alive Servers:
Fri Aug 24 02:00:33 2018 - [info] 192.168.2.61(192.168.2.61:3306)
Fri Aug 24 02:00:33 2018 - [info] 192.168.2.62(192.168.2.62:3306)
Fri Aug 24 02:00:33 2018 - [info] 192.168.2.63(192.168.2.63:3306)
Fri Aug 24 02:00:33 2018 - [info] Alive Slaves:
Fri Aug 24 02:00:33 2018 - [info] 192.168.2.61(192.168.2.61:3306) Version=5.7.21-log (oldest major version between slaves) log-bin:enabled
Fri Aug 24 02:00:33 2018 - [info] Replicating from 192.168.2.62(192.168.2.62:3306)
Fri Aug 24 02:00:33 2018 - [info] Primary candidate for the new Master (candidate_master is set)
Fri Aug 24 02:00:33 2018 - [info] 192.168.2.63(192.168.2.63:3306) Version=5.7.21-log (oldest major version between slaves) log-bin:enabled
Fri Aug 24 02:00:33 2018 - [info] Replicating from 192.168.2.62(192.168.2.62:3306)
Fri Aug 24 02:00:33 2018 - [info] Not candidate for the new Master (no_master is set)
Fri Aug 24 02:00:33 2018 - [info] Current Alive Master: 192.168.2.62(192.168.2.62:3306)
Fri Aug 24 02:00:33 2018 - [info] Checking slave configurations..
Fri Aug 24 02:00:33 2018 - [info] read_only=1 is not set on slave 192.168.2.61(192.168.2.61:3306).
Fri Aug 24 02:00:33 2018 - [warning] relay_log_purge=0 is not set on slave 192.168.2.61(192.168.2.61:3306).
Fri Aug 24 02:00:33 2018 - [info] read_only=1 is not set on slave 192.168.2.63(192.168.2.63:3306).
Fri Aug 24 02:00:33 2018 - [warning] relay_log_purge=0 is not set on slave 192.168.2.63(192.168.2.63:3306).
Fri Aug 24 02:00:33 2018 - [info] Checking replication filtering settings..
Fri Aug 24 02:00:33 2018 - [info] binlog_do_db= , binlog_ignore_db=
Fri Aug 24 02:00:33 2018 - [info] Replication filtering check ok.
Fri Aug 24 02:00:33 2018 - [info] GTID (with auto-pos) is not supported
Fri Aug 24 02:00:33 2018 - [info] Starting SSH connection tests..
Fri Aug 24 02:00:35 2018 - [info] All SSH connection tests passed successfully.
Fri Aug 24 02:00:35 2018 - [info] Checking MHA Node version..
Fri Aug 24 02:00:36 2018 - [info] Version check ok.
Fri Aug 24 02:00:36 2018 - [info] Checking SSH publickey authentication settings on the current master..
Fri Aug 24 02:00:36 2018 - [info] HealthCheck: SSH to 192.168.2.62 is reachable.
Fri Aug 24 02:00:37 2018 - [info] Master MHA Node version is 0.57.
Fri Aug 24 02:00:37 2018 - [info] Checking recovery script configurations on 192.168.2.62(192.168.2.62:3306)..
Fri Aug 24 02:00:37 2018 - [info] Executing command: save_binary_logs --command=test --start_pos=4 --binlog_dir=/mysql1/data --output_file=/etc/mha/app1/save_binary_logs_test --manager_version=0.57 --start_file=mysql-bin.000010
Fri Aug 24 02:00:37 2018 - [info] Connecting to root@192.168.2.62(192.168.2.62:22)..
Creating /etc/mha/app1 if not exists.. ok.
Checking output directory is accessible or not..
ok.
Binlog found at /mysql1/data, up to mysql-bin.000010
Fri Aug 24 02:00:38 2018 - [info] Binlog setting check done.
Fri Aug 24 02:00:38 2018 - [info] Checking SSH publickey authentication and checking recovery script configurations on all alive slave servers..
Fri Aug 24 02:00:38 2018 - [info] Executing command : apply_diff_relay_logs --command=test --slave_user='root' --slave_host=192.168.2.61 --slave_ip=192.168.2.61 --slave_port=3306 --workdir=/etc/mha/app1 --target_version=5.7.21-log --manager_version=0.57 --relay_log_info=/mysql1/data/relay-log.info --relay_dir=/mysql1/data/ --slave_pass=xxx
Fri Aug 24 02:00:38 2018 - [info] Connecting to root@192.168.2.61(192.168.2.61:22)..
Checking slave recovery environment settings..
Opening /mysql1/data/relay-log.info ... ok.
Relay log found at /mysql1/data, up to node1-relay-bin.000002
Temporary relay log file is /mysql1/data/node1-relay-bin.000002
Testing mysql connection and privileges..mysql: [Warning] Using a password on the command line interface can be insecure.
done.
Testing mysqlbinlog output.. done.
Cleaning up test file(s).. done.
Fri Aug 24 02:00:38 2018 - [info] Executing command : apply_diff_relay_logs --command=test --slave_user='root' --slave_host=192.168.2.63 --slave_ip=192.168.2.63 --slave_port=3306 --workdir=/etc/mha/app1 --target_version=5.7.21-log --manager_version=0.57 --relay_log_info=/mysql1/data/relay-log.info --relay_dir=/mysql1/data/ --slave_pass=xxx
Fri Aug 24 02:00:38 2018 - [info] Connecting to root@192.168.2.63(192.168.2.63:22)..
Checking slave recovery environment settings..
Opening /mysql1/data/relay-log.info ... ok.
Relay log found at /mysql1/data, up to node3-relay-bin.000010
Temporary relay log file is /mysql1/data/node3-relay-bin.000010
Testing mysql connection and privileges..mysql: [Warning] Using a password on the command line interface can be insecure.
done.
Testing mysqlbinlog output.. done.
Cleaning up test file(s).. done.
Fri Aug 24 02:00:38 2018 - [info] Slaves settings check done.
Fri Aug 24 02:00:38 2018 - [info]
192.168.2.62(192.168.2.62:3306) (current master)
+--192.168.2.61(192.168.2.61:3306)
+--192.168.2.63(192.168.2.63:3306)
Fri Aug 24 02:00:38 2018 - [info] Checking replication health on 192.168.2.61..
Fri Aug 24 02:00:38 2018 - [info] ok.
Fri Aug 24 02:00:38 2018 - [info] Checking replication health on 192.168.2.63..
Fri Aug 24 02:00:38 2018 - [info] ok.
Fri Aug 24 02:00:38 2018 - [info] Checking master_ip_failover_script status:
Fri Aug 24 02:00:38 2018 - [info] /etc/mha/master_ip_failover --command=status --ssh_user=root --orig_master_host=192.168.2.62 --orig_master_ip=192.168.2.62 --orig_master_port=3306
IN SCRIPT TEST====/sbin/ifconfig eth0:0 down==/sbin/ifconfig eth0:0 192.168.6.66/24===
Checking the Status of the script.. OK
Fri Aug 24 02:00:38 2018 - [info] OK.
Fri Aug 24 02:00:38 2018 - [warning] shutdown_script is not defined.
Fri Aug 24 02:00:38 2018 - [info] Got exit code 0 (Not master dead).
MySQL Replication Health is OK.
masterha_check_ssh
[root@node3 app1]# /etc/mha/mhamanager/bin/masterha_check_ssh --conf=/etc/mha/app1/app1.cnf
Thu Aug 23 15:14:27 2018 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.
Thu Aug 23 15:14:27 2018 - [info] Reading application default configuration from /etc/mha/app1/app1.cnf..
Thu Aug 23 15:14:27 2018 - [info] Reading server configuration from /etc/mha/app1/app1.cnf..
Thu Aug 23 15:14:27 2018 - [info] Starting SSH connection tests..
Thu Aug 23 15:14:29 2018 - [debug]
Thu Aug 23 15:14:27 2018 - [debug] Connecting via SSH from root@192.168.2.61(192.168.2.61:22) to root@192.168.2.62(192.168.2.62:22)..
Thu Aug 23 15:14:29 2018 - [debug] ok.
Thu Aug 23 15:14:29 2018 - [debug] Connecting via SSH from root@192.168.2.61(192.168.2.61:22) to root@192.168.2.63(192.168.2.63:22)..
Thu Aug 23 15:14:29 2018 - [debug] ok.
Thu Aug 23 15:14:29 2018 - [debug]
Thu Aug 23 15:14:28 2018 - [debug] Connecting via SSH from root@192.168.2.63(192.168.2.63:22) to root@192.168.2.61(192.168.2.61:22)..
Thu Aug 23 15:14:29 2018 - [debug] ok.
Thu Aug 23 15:14:29 2018 - [debug] Connecting via SSH from root@192.168.2.63(192.168.2.63:22) to root@192.168.2.62(192.168.2.62:22)..
Thu Aug 23 15:14:29 2018 - [debug] ok.
Thu Aug 23 15:14:29 2018 - [debug]
Thu Aug 23 15:14:28 2018 - [debug] Connecting via SSH from root@192.168.2.62(192.168.2.62:22) to root@192.168.2.61(192.168.2.61:22)..
Thu Aug 23 15:14:29 2018 - [debug] ok.
Thu Aug 23 15:14:29 2018 - [debug] Connecting via SSH from root@192.168.2.62(192.168.2.62:22) to root@192.168.2.63(192.168.2.63:22)..
Thu Aug 23 15:14:29 2018 - [debug] ok.
Thu Aug 23 15:14:29 2018 - [info] All SSH connection tests passed successfully.
masterha_check_status
[root@node3 ~]# /etc/mha/mhamanager/bin/masterha_check_status --conf=/etc/mha/app1/app1.cnf
app1 (pid:14158) is running(0:PING_OK), master:192.168.2.61
masterha_conf_host
masterha_manager
[root@node3 ~]# /etc/mha/mhamanager/bin/masterha_manager --conf=/etc/mha/app1/app1.cnf &
[1] 14158
[root@node3 ~]# Fri Aug 24 17:49:08 2018 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.
Fri Aug 24 17:49:08 2018 - [info] Reading application default configuration from /etc/mha/app1/app1.cnf..
Fri Aug 24 17:49:08 2018 - [info] Reading server configuration from /etc/mha/app1/app1.cnf..
masterha_master_monitor
[root@node3 ~]# /etc/mha/mhamanager/bin/masterha_master_monitor --conf=/etc/mha/app1/app1.cnf
Fri Aug 24 17:50:16 2018 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.
Fri Aug 24 17:50:16 2018 - [info] Reading application default configuration from /etc/mha/app1/app1.cnf..
Fri Aug 24 17:50:16 2018 - [info] Reading server configuration from /etc/mha/app1/app1.cnf..
masterha_master_switch
- 查看从库指向的主库
mysql> show slave status \G ;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.2.61
Master_User: dao
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000005
Read_Master_Log_Pos: 154
Relay_Log_File: node3-relay-bin.000002
Relay_Log_Pos: 320
Relay_Master_Log_File: mysql-bin.000005
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 154
Relay_Log_Space: 527
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: 03fde241-9a55-11e8-aa12-000c291f013a
Master_Info_File: /mysql1/data/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
- 停止MHA Mointior
[root@node3 bin]# masterha_stop --conf=/etc/mha/app1/app1.cnf
Stopped app1 successfully.
- 切换主库
[root@node3 bin]# masterha_master_switch --master_state=alive --conf=/etc/mha/app1/app1.cnf --new_master_host=192.168.2.62
Fri Aug 24 18:04:39 2018 - [info] MHA::MasterRotate version 0.57.
Fri Aug 24 18:04:39 2018 - [info] Starting online master switch..
Fri Aug 24 18:04:39 2018 - [info]
Fri Aug 24 18:04:39 2018 - [info] * Phase 1: Configuration Check Phase..
Fri Aug 24 18:04:39 2018 - [info]
Fri Aug 24 18:04:39 2018 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.
Fri Aug 24 18:04:39 2018 - [info] Reading application default configuration from /etc/mha/app1/app1.cnf..
Fri Aug 24 18:04:39 2018 - [info] Reading server configuration from /etc/mha/app1/app1.cnf..
Fri Aug 24 18:04:39 2018 - [info] GTID failover mode = 0
Fri Aug 24 18:04:39 2018 - [info] Current Alive Master: 192.168.2.61(192.168.2.61:3306)
Fri Aug 24 18:04:39 2018 - [info] Alive Slaves:
Fri Aug 24 18:04:39 2018 - [info] 192.168.2.62(192.168.2.62:3306) Version=5.7.21-log (oldest major version between slaves) log-bin:enabled
Fri Aug 24 18:04:39 2018 - [info] Replicating from node1(192.168.2.61:3306)
Fri Aug 24 18:04:39 2018 - [info] Primary candidate for the new Master (candidate_master is set)
Fri Aug 24 18:04:39 2018 - [info] 192.168.2.63(192.168.2.63:3306) Version=5.7.21-log (oldest major version between slaves) log-bin:enabled
Fri Aug 24 18:04:39 2018 - [info] Replicating from 192.168.2.61(192.168.2.61:3306)
Fri Aug 24 18:04:39 2018 - [info] Not candidate for the new Master (no_master is set)
It is better to execute FLUSH NO_WRITE_TO_BINLOG TABLES on the master before switching. Is it ok to execute on 192.168.2.61(192.168.2.61:3306)? (YES/no): yes
Fri Aug 24 18:04:42 2018 - [info] Executing FLUSH NO_WRITE_TO_BINLOG TABLES. This may take long time..
Fri Aug 24 18:04:42 2018 - [info] ok.
Fri Aug 24 18:04:42 2018 - [info] Checking MHA is not monitoring or doing failover..
Fri Aug 24 18:04:42 2018 - [info] Checking replication health on 192.168.2.62..
Fri Aug 24 18:04:42 2018 - [info] ok.
Fri Aug 24 18:04:42 2018 - [info] Checking replication health on 192.168.2.63..
Fri Aug 24 18:04:42 2018 - [info] ok.
Fri Aug 24 18:04:42 2018 - [info] 192.168.2.62 can be new master.
Fri Aug 24 18:04:42 2018 - [info]
From:
192.168.2.61(192.168.2.61:3306) (current master)
+--192.168.2.62(192.168.2.62:3306)
+--192.168.2.63(192.168.2.63:3306)
To:
192.168.2.62(192.168.2.62:3306) (new master)
+--192.168.2.63(192.168.2.63:3306)
Starting master switch from 192.168.2.61(192.168.2.61:3306) to 192.168.2.62(192.168.2.62:3306)? (yes/NO): yes
Fri Aug 24 18:04:45 2018 - [info] Checking whether 192.168.2.62(192.168.2.62:3306) is ok for the new master..
Fri Aug 24 18:04:45 2018 - [info] ok.
Fri Aug 24 18:04:45 2018 - [info] ** Phase 1: Configuration Check Phase completed.
Fri Aug 24 18:04:45 2018 - [info]
Fri Aug 24 18:04:45 2018 - [info] * Phase 2: Rejecting updates Phase..
Fri Aug 24 18:04:45 2018 - [info]
Fri Aug 24 18:04:45 2018 - [info] Executing master ip online change script to disable write on the current master:
Fri Aug 24 18:04:45 2018 - [info] /etc/mha/master_ip_online_change --command=stop --orig_master_host=192.168.2.61 --orig_master_ip=192.168.2.61 --orig_master_port=3306 --orig_master_user='root' --new_master_host=192.168.2.62 --new_master_ip=192.168.2.62 --new_master_port=3306 --new_master_user='root' --orig_master_ssh_user=root --new_master_ssh_user=root --orig_master_password=xxx --new_master_password=xxx
***************************************************************
Disabling the VIP - 192.168.6.66/24 on old master: 192.168.2.61
***************************************************************
Fri Aug 24 18:04:46 2018 - [info] ok.
Fri Aug 24 18:04:46 2018 - [info] Locking all tables on the orig master to reject updates from everybody (including root):
Fri Aug 24 18:04:46 2018 - [info] Executing FLUSH TABLES WITH READ LOCK..
Fri Aug 24 18:04:46 2018 - [info] ok.
Fri Aug 24 18:04:46 2018 - [info] Orig master binlog:pos is mysql-bin.000005:154.
Fri Aug 24 18:04:46 2018 - [info] Waiting to execute all relay logs on 192.168.2.62(192.168.2.62:3306)..
Fri Aug 24 18:04:46 2018 - [info] master_pos_wait(mysql-bin.000005:154) completed on 192.168.2.62(192.168.2.62:3306). Executed 0 events.
Fri Aug 24 18:04:46 2018 - [info] done.
Fri Aug 24 18:04:46 2018 - [info] Getting new master's binlog name and position..
Fri Aug 24 18:04:46 2018 - [info] mysql-bin.000013:234
Fri Aug 24 18:04:46 2018 - [info] All other slaves should start replication from here. Statement should be: CHANGE MASTER TO MASTER_HOST='192.168.2.62', MASTER_PORT=3306, MASTER_LOG_FILE='mysql-bin.000013', MASTER_LOG_POS=234, MASTER_USER='dao', MASTER_PASSWORD='xxx';
Fri Aug 24 18:04:46 2018 - [info] Executing master ip online change script to allow write on the new master:
Fri Aug 24 18:04:46 2018 - [info] /etc/mha/master_ip_online_change --command=start --orig_master_host=192.168.2.61 --orig_master_ip=192.168.2.61 --orig_master_port=3306 --orig_master_user='root' --new_master_host=192.168.2.62 --new_master_ip=192.168.2.62 --new_master_port=3306 --new_master_user='root' --orig_master_ssh_user=root --new_master_ssh_user=root --orig_master_password=xxx --new_master_password=xxx
***************************************************************
Enabling the VIP - 192.168.6.66/24 on new master: 192.168.2.62
***************************************************************
Fri Aug 24 18:04:46 2018 - [info] ok.
Fri Aug 24 18:04:46 2018 - [info]
Fri Aug 24 18:04:46 2018 - [info] * Switching slaves in parallel..
Fri Aug 24 18:04:46 2018 - [info]
Fri Aug 24 18:04:46 2018 - [info] -- Slave switch on host 192.168.2.63(192.168.2.63:3306) started, pid: 15240
Fri Aug 24 18:04:46 2018 - [info]
Fri Aug 24 18:04:46 2018 - [info] Log messages from 192.168.2.63 ...
Fri Aug 24 18:04:46 2018 - [info]
Fri Aug 24 18:04:46 2018 - [info] Waiting to execute all relay logs on 192.168.2.63(192.168.2.63:3306)..
Fri Aug 24 18:04:46 2018 - [info] master_pos_wait(mysql-bin.000005:154) completed on 192.168.2.63(192.168.2.63:3306). Executed 0 events.
Fri Aug 24 18:04:46 2018 - [info] done.
Fri Aug 24 18:04:46 2018 - [info] Resetting slave 192.168.2.63(192.168.2.63:3306) and starting replication from the new master 192.168.2.62(192.168.2.62:3306)..
Fri Aug 24 18:04:46 2018 - [info] Executed CHANGE MASTER.
Fri Aug 24 18:04:46 2018 - [info] Slave started.
Fri Aug 24 18:04:46 2018 - [info] End of log messages from 192.168.2.63 ...
Fri Aug 24 18:04:46 2018 - [info]
Fri Aug 24 18:04:46 2018 - [info] -- Slave switch on host 192.168.2.63(192.168.2.63:3306) succeeded.
Fri Aug 24 18:04:46 2018 - [info] Unlocking all tables on the orig master:
Fri Aug 24 18:04:46 2018 - [info] Executing UNLOCK TABLES..
Fri Aug 24 18:04:46 2018 - [info] ok.
Fri Aug 24 18:04:46 2018 - [info] All new slave servers switched successfully.
Fri Aug 24 18:04:46 2018 - [info]
Fri Aug 24 18:04:46 2018 - [info] * Phase 5: New master cleanup phase..
Fri Aug 24 18:04:46 2018 - [info]
Fri Aug 24 18:04:46 2018 - [info] 192.168.2.62: Resetting slave info succeeded.
Fri Aug 24 18:04:46 2018 - [info] Switching master to 192.168.2.62(192.168.2.62:3306) completed successfully.
[root@node3 bin]#
- 再次查看从库指向的主库
mysql> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.2.62
Master_User: dao
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000013
Read_Master_Log_Pos: 234
Relay_Log_File: node3-relay-bin.000002
Relay_Log_Pos: 320
Relay_Master_Log_File: mysql-bin.000013
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 234
Relay_Log_Space: 527
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 2
Master_UUID: f63b765b-9c1d-11e8-aa1e-005056296858
Master_Info_File: /mysql1/data/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.11 sec)
- 验证IP是否漂移
[root@node2 ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:50:56:29:68:58
inet addr:192.168.2.62 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::250:56ff:fe29:6858/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:16163 errors:0 dropped:0 overruns:0 frame:0
TX packets:13587 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2744029 (2.6 MiB) TX bytes:2051279 (1.9 MiB)
eth0:0 Link encap:Ethernet HWaddr 00:50:56:29:68:58
inet addr:192.168.6.66 Bcast:192.168.6.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:1814 errors:0 dropped:0 overruns:0 frame:0
TX packets:1814 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:471431 (460.3 KiB) TX bytes:471431 (460.3 KiB)
masterha_secondary_check
[root@node3 ~]# masterha_secondary_check -s 192.168.2.62 -s 192.168.2.63 --user=root --master_host=node1 --master_ip=192.168.2.61 --master_port=3306
Master is reachable from 192.168.2.62!
masterha_stop
[root@node3 bin]# masterha_stop --conf=/etc/mha/app1/app1.cnf
Stopped app1 successfully.