Hi,

https://github.com/balabit/syslog-ng/pull/1505 seems to address memory problems. If you use my git head packages, I can add this patch for you and see if it resolves your problems.

Bye,

Peter Czanik (CzP) <peter.czanik@balabit.com>
Balabit / syslog-ng upstream
https://www.balabit.com/blog/author/peterczanik/
https://twitter.com/PCzanik

On Wed, May 31, 2017 at 4:28 AM, Evan Rempel <erempel@uvic.ca> wrote:

We are running git head download post 3.9.1 and the memory footprint seems to continually grow.

Looking at the statistics for queued messages I found none, but discovered that we have nearly 22,000
statistic sets for a total of 68195 tracked statistics.
% /usr/local/sbin/syslog-ng-ctl stats | wc -l
68195

It it possible that all of these statistics take up a non-trivial amount of RAM?

USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root      1489 79.2 61.5 12134140 10139760 ?   Ssl  Apr24 41581:22 /usr/local/sbin/syslog-ng

That is a 12GB footprint after 1 month of uptime.

Evan.
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FAQ: http://www.balabit.com/wiki/syslog-ng-faq