在真是的华为云linux centos7.4 上执行 systemctl start mysql@bootstrap.service 启动失败了

● mysql@bootstrap.service - Percona XtraDB Cluster with config /etc/sysconfig/mysql.bootstrap

Loaded: loaded (/usr/lib/systemd/system/mysql@.service; disabled; vendor preset: disabled)

Active: failed (Result: exit-code) since Wed 2020-11-11 23:28:44 CST; 14s ago

Process: 22844 ExecStopPost=/usr/bin/mysql-systemd stop-post (code=exited, status=0/SUCCESS)

Process: 22814 ExecStop=/usr/bin/mysql-systemd stop (code=exited, status=2)

Process: 22355 ExecStartPost=/usr/bin/mysql-systemd start-post $MAINPID (code=exited, status=1/FAILURE)

Process: 22352 ExecStart=/usr/bin/mysqld_safe --basedir=/usr ${EXTRA_ARGS} (code=exited, status=1/FAILURE)

Process: 22311 ExecStartPre=/usr/bin/mysql-systemd start-pre (code=exited, status=0/SUCCESS)

Main PID: 22352 (code=exited, status=1/FAILURE)

Nov 11 23:28:44 ecs-c6s-large-2-linux-20201111105913 mysql-systemd[22355]: ERROR! mysqld_safe with PID 22352 has already exited: FAILURE

Nov 11 23:28:44 ecs-c6s-large-2-linux-20201111105913 systemd[1]: mysql@bootstrap.service: control process exited, code=exited status=1

Nov 11 23:28:44 ecs-c6s-large-2-linux-20201111105913 mysql-systemd[22814]: WARNING: mysql pid file /var/run/mysqld/mysqld.pid empty or not readable

Nov 11 23:28:44 ecs-c6s-large-2-linux-20201111105913 mysql-systemd[22814]: ERROR! mysql already dead

Nov 11 23:28:44 ecs-c6s-large-2-linux-20201111105913 systemd[1]: mysql@bootstrap.service: control process exited, code=exited status=2

Nov 11 23:28:44 ecs-c6s-large-2-linux-20201111105913 mysql-systemd[22844]: WARNING: mysql pid file /var/run/mysqld/mysqld.pid empty or not readable

Nov 11 23:28:44 ecs-c6s-large-2-linux-20201111105913 mysql-systemd[22844]: WARNING: mysql may be already dead

Nov 11 23:28:44 ecs-c6s-large-2-linux-20201111105913 systemd[1]: Failed to start Percona XtraDB Cluster with config /etc/sysconfig/mysql.bootstrap.

Nov 11 23:28:44 ecs-c6s-large-2-linux-20201111105913 systemd[1]: Unit mysql@bootstrap.service entered failed state.

Nov 11 23:28:44 ecs-c6s-large-2-linux-20201111105913 systemd[1]: mysql@bootstrap.service failed.