MySQL 有关MHA搭建与切换的几个错误log汇总
16lz
2021-12-14
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.cnfThu Nov 21 15:33:15 2018 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.Thu Nov 21 15:33:15 2018 - [info] Reading application default configuration from /etc/mha/app1.cnf..Thu Nov 21 15:33:15 2018 - [info] Reading server configuration from /etc/mha/app1.cnf..Thu Nov 21 15:33:15 2018 - [info] MHA::MasterMonitor version 0.56.Thu Nov 21 15:33:16 2018- [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 21 15:33:16 2018 - [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 21 15:33:16 2018 - [error][/usr/local/share/perl5/MHA/MasterMonitor.pm, ln523] Error happened on monitoring servers.Thu Nov 21 15:33:16 2018 - [info] Got exit code 1 (Not master dead).MySQL Replication Health is NOT OK!
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.cnfIt 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): yTue Nov 19 17:19:09 2018 - [info] Executing FLUSH NO_WRITE_TO_BINLOG TABLES. This may take long time..Tue Nov 19 17:19:09 2018 - [info] ok.Tue Nov 19 17:19:09 2018 - [info] Checking MHA is not monitoring or doing failover..Tue Nov 19 17:19:09 2018 - [info] Checking replication health on 179.179.19.185..Tue Nov 19 17:19:09 2018 - [info] ok.Tue Nov 19 17:19:09 2018 - [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 19 17:19:09 2018 - [error][/usr/local/share/perl5/MHA/ManagerUtil.pm, ln177] Got ERROR: at /usr/local/bin/masterha_master_switch line 53.3. 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.cnfStarting master switch from 179.179.19.185(179.179.19:3306) to 179.179.19.184(179.179.19.184:3306)? (yes/NO): yesTue Nov 19 18:52:04 2018 - [info] Checking whether 179.179.19.184(179.179.19.184:3306) is ok for the new master..Tue Nov 19 18:52:04 2018 - [info] ok.Tue Nov 19 18:52:04 2018 - [info] ** Phase 1: Configuration Check Phase completed.Tue Nov 19 18:52:04 2018 - [info] Tue Nov 19 18:52:04 2018 - [info] * Phase 2: Rejecting updates Phase..Tue Nov 19 18:52:04 2018 - [info] Tue Nov 19 18:52:04 2018 - [info] Executing master ip online change script to disable write on the current master:Tue Nov 19 18:52:04 2018 - [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 19 18:52:04 2018 - [error][/usr/local/share/perl5/MHA/ManagerUtil.pm, ln177] Got ERROR: at /usr/local/bin/masterha_master_switch line 53.4.如果使用的是xtrabackup，注意从节点会把event还原上去，可能会造成数据不一致，同步失败的问题。
如果主节点有event，需要手动关闭从节点的event。例如，主节点有归档删除数据的event，从节点需要关闭，否则报错。类似如下错误：
Could not execute Delete_rows event on table ????DB.*****table; Can't find record in '*****', Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event's master log FIRST, end_log_pos XXXXXXX
/usr/local/bin/masterha_check_repl --conf=/etc/mha/qqweixinordb.cnf
Can't exec "mysqlbinlog": No such file or directory at /usr/local/share/perl5/MHA/BinlogManager.pm line 106.mysqlbinlog version command failed with rc 1:0, please verify PATH, LD_LIBRARY_PATH, and client optionsat /usr/local/bin/apply_diff_relay_logs line 493.Fri Aug 28 04:38:22 2019 - [error][/usr/local/share/perl5/MHA/MasterMonitor.pm, ln205] Slaves settings check failed!Fri Aug 28 04:38:22 2019 - [error][/usr/local/share/perl5/MHA/MasterMonitor.pm, ln413] Slave configuration failed.Fri Aug 28 04:38:22 2019 - [error][/usr/local/share/perl5/MHA/MasterMonitor.pm, ln424] Error happened on checking configurations. at /usr/local/bin/masterha_check_repl line 48.Fri Aug 28 04:38:22 2019 - [error][/usr/local/share/perl5/MHA/MasterMonitor.pm, ln523] Error happened on monitoring servers.Fri Aug 28 04:38:22 2019 - [info] Got exit code 1 (Not master dead).MySQL Replication Health is NOT OK!
ln -s /usr/local/mysql/bin/mysqlbinlog /usr/local/bin/mysqlbinlogln -s /usr/local/mysql/bin/mysql /usr/local/bin/mysql
6.root 账号密码过期
以root账号设置的ssh免密登陆，而ssh有过期限制，则mha ssh检查时报错:
/usr/local/bin/masterha_check_ssh --conf=/etc/mha/qqorder.cnfThu Nov 5 10:09:09 2018 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.Thu Nov 5 10:09:09 2018 - [info] Reading application default configuration from /etc/mha/pms20epime.cnf..Thu Nov 5 10:09:09 2018 - [info] Reading server configuration from /etc/mha/pms20epime.cnf..Thu Nov 5 10:09:09 2018 - [info] Starting SSH connection tests..Thu Nov 5 10:09:09 2018 - [error][/usr/local/share/perl5/MHA/SSHCheck.pm, ln63]Thu Nov 5 10:09:09 2018 - [debug] Connecting via SSH from root@172.181.191.191(172.181.191.191:22) to root@172.181.191.192(172.181.191.192:22)..WARNING: Your password has expired.Password change required but no TTY available.Thu Nov 5 10:09:09 2018 - [error][/usr/local/share/perl5/MHA/SSHCheck.pm, ln111] SSH connection from root@172.181.191.191(172.181.191.191:22) to root@172.181.191.192(172.181.191.192:22) failed!Thu Nov 5 10:09:10 2018 - [error][/usr/local/share/perl5/MHA/SSHCheck.pm, ln63]Thu Nov 5 10:09:09 2018 - [debug] Connecting via SSH from root@172.181.191.192(172.181.191.192:22) to root@172.181.191.191(172.181.191.191:22)..WARNING: Your password has expired.Password change required but no TTY available.Thu Nov 5 10:09:10 2018 - [error][/usr/local/share/perl5/MHA/SSHCheck.pm, ln111] SSH connection from root@172.181.191.192(172.181.191.192:22) to root@172.181.191.191(172.181.191.191:22) failed!SSH Configuration Check Failed! at /usr/local/bin/masterha_check_ssh line 44.
解决方案在root账号下，执行以下命令:
chage -M 99999 root
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