如何解决无法在Percona XtraDB群集中启动MySQL服务
我已经启动了MysqL服务，但无法为以下错误代码启动MysqL服务。我有3个节点，但2个节点正在运行
MysqL.service - Percona XTradB Cluster
Loaded: loaded (/usr/lib/systemd/system/MysqL.service; enabled; vendor preset: disabled)
Active: Failed (Result: exit-code) since Wed 2019-11-11 07:36:08 CST; 4h 19min ago
Process: 29016 ExecStopPost=/usr/bin/MysqL-systemd stop-post (code=exited,status=0/SUCCESS)
Process: 28972 ExecStop=/usr/bin/MysqL-systemd stop (code=exited,status=2)
Process: 27824 ExecStartPost=/usr/bin/MysqL-systemd start-post $MAINPID (code=exited,status=1/FAILURE)
Process: 27822 ExecStart=/usr/bin/MysqLd_safe --basedir=/usr (code=exited,status=0/SUCCESS)
Process: 27752 ExecStartPre=/usr/bin/MysqL-systemd start-pre (code=exited,status=0/SUCCESS)
Main PID: 27822 (code=exited,status=0/SUCCESS)
MysqL-systemd[17824]: ERROR! MysqLd_safe with PID 17822 has already exited: FAILURE
systemd[1]: MysqL.service: control process exited,code=exited status=1
MysqL-systemd[18972]: WARNING: MysqL pid file /data/data/MysqLd.pid empty or not readable
MysqL-systemd[18972]: ERROR! MysqL already dead
systemd[1]: MysqL.service: control process exited,code=exited status=2
MysqL-systemd[19016]: WARNING: MysqL pid file /data/data/MysqLd.pid empty or not readable
MysqL-systemd[19016]: WARNING: MysqL may be already dead
Failed to start Percona XTradB Cluster.
Unit MysqL.service entered Failed state.
MysqL.service Failed
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