this is the daily logrotate process. it rotates the log files and
reloads httpd. It is normal. A number of other process will also
restart at the same time.
See:
cat /etc/logrotate.d/httpd
/var/log/httpd/*log {
missingok
notifempty
sharedscripts
delaycompress
postrotate
/bin/systemctl reload httpd.service > /dev/null 2>/dev/null || true
endscript
}
On Wed, Nov 7, 2018 at 5:53 AM Andy Blanchard <zocalo@xxxxxxxxx> wrote:
>
> On Wed, 7 Nov 2018 at 10:40, Scott van Looy via users
> <users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
> > Since the upgrade to F29 my HTTPD has been shutting down around 3am every night. I’d like to try and investigate why, but the only thing in the log is:
> > [mpm_event:notice] [pid 1096508:tid 140027704744192] AH00492: caught SIGWINCH, shutting down gracefully
> >
> > These all happen at roughly the same time, but not the exact same time - around 3am
>
> Semi-regular times like "around 3am" generally imply something being
> governed by Anacron's variable task scheduler which will randomise the
> time of cron jobs. Since this is daily, I'd start by taking a look at
> your daily crons and see if any of them might relate to the issue -
> most likely a log rotation tool or something along those lines.
>
> SIGWINCH isn't one of the more common signals you'll interact with
> like TERM, but it supposedly relates to "WINdow CHange", or a change
> in the size of the controlling terminal's window size - e.g. to tell a
> shell like bash that the terminal emulator window has been resized and
> it now needs to wrap at a different number of characters. However it
> seems Apache doesn't use it entirely correctly so it may be that your
> log rotation tool is actually stopping the daemon rather than HUPing
> it as it should.
>
> Andy
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