Log rotation?
'grep cron /var/log/syslog' and look for entries around 0000
sudo 'apt install sysstat' and use 'sar -q' to look at historic load avg around 0000 This is lightweight and recommended on a server.
If all else fails temporarily turn on "process accounting" and 'apt install acct'
google it since I forget the details but I remember its heavyweight!
On Wed, 24 Feb 2021 at 14:17, mick mbm@rlogin.net wrote:
On Tue, 23 Feb 2021 18:15:26 +0000 steve-ALUG@hst.me.uk allegedly wrote:
My *buntu server runs a mail server. At 00:00 on some days, it complains that it can't reach the spam analyser or the virus analyser, despite the fact that they're still running and always have been, as far as I can tell.
Other than stopping up to see what's running at midnight, is there a way of monitoring what's running at a particular time. I know you can see what's slowing things down at boot time using "system-analyze blame", or using pybootchartgui. Is there a way to do something like this around midnight?
Also, of the top of your collective heads, can you think of any services update or hog processor at 00:00.
Steve
What (if anything) does syslog say? Have you checked your (r)syslog.conf to see where cron (or any odd daemon) is logging?
Mick
Mick Morgan gpg fingerprint: FC23 3338 F664 5E66 876B 72C0 0A1F E60B 5BAD D312 https://baldric.net/about-trivia
main@lists.alug.org.uk http://www.alug.org.uk/ https://lists.alug.org.uk/mailman/listinfo/main Unsubscribe? See message headers or the web site above!