Pmm-agent - log rotation

Percona Monitoring and Management (PMM) PMM 2.x
1

Hello.
I want to rotate logs from pmm-agent.
Based on documentation: pmm-agent - PMM Client agent - Percona Monitoring and Management

If you change the default log file name, reflect the change in the log rotation rules file /etc/logrotate.d/pmm-agent-logrotate.

I’m not have this file. I had installed agent from binaries. I’m looked inside deb and rpm packages too for this file, but I not found it.

Which type of signal I can send to pmm-agent process to re-create (re-handle) new log file?
I don’t want restart the pmm-agent.

Actually I use:

ProjectName: pmm-agent
Version: 2.33.0
PMMVersion: 2.33.0
Timestamp: 2022-12-06 17:15:45 (UTC)
FullCommit: 1cc0dd29c13ca7a8fd0ea16760af48b8eba890b6
2

Hi @mariaczi,
pmm-agent don’t create log files.
pmm-agent logs to stdout and stderr, so you can configure where to write logs when you start the process.

3

Hi @nurlan.
Thanks for your answer.
I’m starting pmm-agent with start-stop-daemon command in this way:

start() {

        ebegin "Starting ${name}"
        start-stop-daemon \
                --start --quiet --background --pidfile ${pidfile} -1 ${pmm_log} -2 ${pmm_log} \
                --exec ${command} -- ${start_stop_daemon_args}
        local ret=$?
        eend $ret
        return $ret
}

What I should send to start-stop-daemon command to re-create log file?

4

Hi @mariaczi,

You need to configure start-stop-daemon to write from stdout to some file(How to log the stdout of a process started by start-stop-daemon – iTecNote) and then configure logrotate to rotate this file like it’s written here How to Setup and Manage Log Rotation Using Logrotate in Linux

I hope it’ll help you.

P.S. Regarding

If you change the default log file name, reflect the change in the log rotation rules file /etc/logrotate.d/pmm-agent-logrotate .

We will remove this line from our documentation, it seems outdated.