MySQL有关MHA搭建与切换的几个错误log

Z时代
2024-01-10
分类：综合

database

1：masterha_check_repl 副本集方面报错 replicates is not defined in the configuration file!

具体信息如下：

# /usr/local/bin/masterha_check_repl --conf=/etc/mha/app1.cnf

Thu Nov 2115:33:152018 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.
Thu Nov 2115:33:152018 - [info] Reading application default configuration from /etc/mha/app1.cnf..
Thu Nov 2115:33:152018 - [info] Reading server configuration from /etc/mha/app1.cnf..
Thu Nov 2115:33:152018 - [info] MHA::MasterMonitor version 0.56.
Thu Nov 2115:33:162018- [error][/usr/local/share/perl5/MHA/ServerManager.pm, ln671] Master 179.179.19.179:3306 from which slave 179.179.19.180(179.179.19.180:3306) replicates is not defined in the configuration file!
Thu Nov 2115:33:162018 - [error][/usr/local/share/perl5/MHA/MasterMonitor.pm, ln424] Error happened on checking configurations.  at /usr/local/share/perl5/MHA/MasterMonitor.pm line 326.
Thu Nov 2115:33:162018 - [error][/usr/local/share/perl5/MHA/MasterMonitor.pm, ln523] Error happened on monitoring servers.
Thu Nov 2115:33:162018 - [info] Got exit code 1 (Not master dead).
MySQL Replication Health is NOT OK!

分析：MHA 漂移过后，我们知道配置信息中主节点的信息就不在了，我们需要及时维护，否则/usr/local/bin/masterha_check_repl --conf=/etc/mha/XXX.cnf 检查副本集状态报错。

2. masterha_master_switch 在线切换方面报错 We should not start online master switch when one of connections are running long updates on the current master

具体信息如下：

# /usr/local/bin/masterha_master_switch --master_state=alive --conf=/etc/mha/app1.cnf
It is better to execute FLUSH NO_WRITE_TO_BINLOG TABLES on the master before switching. Is it ok to execute on 179.179.19.184(179.179.19.184:3306)? (YES/no): y
Tue Nov 1917:19:092018 - [info] Executing FLUSH NO_WRITE_TO_BINLOG TABLES. This may take longtime..
Tue Nov 1917:19:092018 - [info]  ok.
Tue Nov 1917:19:092018 - [info] Checking MHA is not monitoring or doing failover..
Tue Nov 1917:19:092018 - [info] Checking replication health on 179.179.19.185..
Tue Nov 1917:19:092018 - [info]  ok.
Tue Nov 1917:19:092018 - [error][/usr/local/share/perl5/MHA/MasterRotate.pm, ln161] We should not start online master switch when one of connections are running long updates on the current master(179.179.19.184(179.179.19.184:3306)). Currently 1 update thread(s) are running.
Details:
{"Time" => "12815","db" => undef,"Id" => "1","User" => "event_scheduler","State" => "Waiting on empty queue","Command" => "Daemon","Info" => undef,"Host" => "localhost"}
Tue Nov 1917:19:092018 - [error][/usr/local/share/perl5/MHA/ManagerUtil.pm, ln177] Got ERROR:  at /usr/local/bin/masterha_master_switch line 53.

分析：set global event_scheduler=off; 主从都要关闭

3. masterha_master_switch 在线切换方面报错 Got Error: DBI .....failed: Access denied for user

# /usr/local/bin/masterha_master_switch --master_state=alive --conf=/etc/mha/app1.cnf
Starting master switch from 179.179.19.185(179.179.19:3306) to 179.179.19.184(179.179.19.184:3306)? (yes/NO): yes
Tue Nov 1918:52:042018 - [info] Checking whether 179.179.19.184(179.179.19.184:3306) is ok for the new master..
Tue Nov 1918:52:042018 - [info]  ok.
Tue Nov 1918:52:042018 - [info] ** Phase 1: Configuration Check Phase completed.
Tue Nov 1918:52:042018 - [info] 
Tue Nov 1918:52:042018 - [info] * Phase 2: Rejecting updates Phase..
Tue Nov 1918:52:042018 - [info] 
Tue Nov 1918:52:042018 - [info] Executing master ip online change script to disable write on the current master:
Tue Nov 1918:52:042018 - [info]   /usr/local/bin/master_ip_online_change_appuanalysis --command=stop --orig_master_host=179.179.19.185 --orig_master_ip=179.179.19.185 --orig_master_port=3306--orig_master_user="weixinLX391P_xldbmha" --orig_master_password="weixinLX391P_xldbmha)qlk" --new_master_host=179.179.19.184 --new_master_ip=179.179.19.184 --new_master_port=55988 --new_master_user="us_mha" --new_master_password="weixinLX391P_xldbmha)qlk" --orig_master_ssh_user=root --new_master_ssh_user=root  
Got Error: DBI connect(";host=179.179.19.184;port=3306;mysql_connect_timeout=4","weixinLX391P_xldbmha",...) failed: Access denied for user"weixinLX391P_xldbmha"@"179.179.19.166" (using password: YES) at /usr/local/share/perl5/MHA/DBHelper.pm line 205.
 at /usr/local/bin/master_ip_online_change_app1 line 119.
Tue Nov 1918:52:042018 - [error][/usr/local/share/perl5/MHA/ManagerUtil.pm, ln177] Got ERROR:  at /usr/local/bin/masterha_master_switch line 53.