有套19c rac环境，操作系统是oracle linux 8.10，日常巡检时发现/var/log/pcp/pmlogger/目录超大，如下
root@db1 \~# du -sh /var/log/pcp/pmlogger/*
468G /var/log/pcp/pmlogger/db
1.3G /var/log/pcp/pmlogger/oracle06-106
754M /var/log/pcp/pmlogger/oracle06-66
4.0K /var/log/pcp/pmlogger/pmlogger_check.log
4.0K /var/log/pcp/pmlogger/pmlogger_check.log.prev
4.0K /var/log/pcp/pmlogger/pmlogger_daily-K.log.prev
4.0K /var/log/pcp/pmlogger/pmlogger_daily.log.prev
4.0K /var/log/pcp/pmlogger/pmlogger_daily.stamp
4.0K /var/log/pcp/pmlogger/pmlogger_daily.stamp.prev
7.3M /var/log/pcp/pmlogger/xykdg
对pmlogger.service服务相对陌生，
root@db1 \~# systemctl status pmlogger.service
● pmlogger.service - Performance Metrics Archive Logger
Loaded: loaded (/usr/lib/systemd/system/pmlogger.service; enabled; vendor preset: disabled)
Active: active (running) since Fri 2024-07-26 19:00:25 CST; 7 months 17 days ago
Docs: man:pmlogger(1)
Main PID: 225471 (pmlogger)
Tasks: 1 (limit: 1644855)
Memory: 3.1G
CGroup: /system.slice/pmlogger.service
└─225471 /usr/libexec/pcp/bin/pmlogger -N -P -r -T24h10m -c config.default -v 100mb -mreexec %Y%m%d.%H.%M
Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.
服务有问题，查看节点二，服务正常，无告警，手动重启服务，持续观察，/var/log/pcp/pmlogger/问题解决
root@db1 \~# systemctl stop pmlogger.service && systemctl start pmlogger.service
root@db2 \~# systemctl status pmlogger.service
● pmlogger.service - Performance Metrics Archive Logger
Loaded: loaded (/usr/lib/systemd/system/pmlogger.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2025-03-12 00:10:31 CST; 2 days ago
Docs: man:pmlogger(1)
Main PID: 143760 (pmlogger)
Tasks: 1 (limit: 1643795)
Memory: 306.8M
CGroup: /system.slice/pmlogger.service
└─143760 /usr/libexec/pcp/bin/pmlogger -N -P -r -T24h10m -c config.default -v 100mb -mreexec %Y%m%d.%H.%M
Mar 12 00:10:10 db1 systemd1: Starting Performance Metrics Archive Logger...
Mar 12 00:10:31 db1 systemd1: Started Performance Metrics Archive Logger.