MySQL MHAの構築と切り替えに関するいくつかのエラーロゴ

1:masterha_check_replレプリカセット側はreplicates is not defined in the configuration fileを間違えました!
詳細は次のとおりです.

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


Thu 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!

解析:MHAドリフト後、構成情報のプライマリノードの情報が存在しないことを知っています.タイムリーにメンテナンスする必要があります.そうしないと、/usr/local/bin/masterha_check_repl --conf=/etc/mha/XXX.cnfレプリカセットのステータスエラーを確認します.
2. masterha_master_We should not start online master switch when one of connections are running long updates on the current master
詳細は次のとおりです.

# /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 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.

分析:set global event_scheduler=off;主従は閉鎖する
3. masterha_master_switch在线切换方面错报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 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.

分析:アカウントのパスワードには文字を移す必要があります.app1.cnfファイルのuserアカウントに対応するパスワードpasswordは、本例の')'のような転送を待つ文字ではありませんが、アカウントrepl_user対応パスワードrepl_passwordにはこの制限はありません.