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syslogrsyslog

Does rsyslog support circular log file?

I want to limit the size of log file, if the size has been exceeded, the old messages will be dropped silently, just like a ring buffer.

And I think the output channel does not meet my requirment.

So, what can I do?

For more, I find a clog patch for syslogd.

Solution

  • My answer only for rsyslog.

    There are many ways to make circular log, see this.

    For example.

    local7.* /var/log/messages

    Then use omprog to merge those ways into rsyslog.

    local7.* action(type="omprog" binary="/path/ways")

    We can use many ways as above to record the logs into a circular buffer.

    One more sentence, because the circular format is so customized, which needs an according tool to load the content. I think this is why rsyslog does not support such formal plugin.