CPU load after upgrade to 9.3

[PedroD]

Hello everyone,

On the 23rd of January I upgraded my Debian base Plesk to 9.3, I noticed since the upgrade the CPU load rose up 25% on average. After monitoring the server services I noticed most of this was caused by qmail. This might be a bug... is someone else experiencing something like this?

See attached stats from watchdog:

stats-graph-month.png -> monthly activity, spiked on the 23rd when I upgraded
stats-graph-24h.png -> the CPU load is back to normal after stopping qmail service.

 

[PedroD]

Nevermind, it was QMail queue that was messing up, I found the solution in this thread:
http://forums.theplanet.com/index.php?showtopic=49410

 

[PedroD]

Duh... problem persists, qmail insists on choking on its own queue, this was not happening before version 9.3 ...me and my versionitis...

Every time a message gets stuck in the queue it keeps increasing the CPU load processes, for now the only solution I found is to disable qmail altogether.

~# /var/qmail/bin/qmail-qstat
messages in queue: 9
messages in queue but not yet preprocessed: 0
~# /var/qmail/bin/qmail-qread
1 Feb 2010 10:45:55 GMT #20988226 6708360 <postmaster@####.com> bouncing

I even created the email postmaster@####.com with the hope I'd receive the messages and break the loop, but no success. Any thoughts?

 

[PedroD]

Quite a monologue going on here... anyway!

Qmail out -> Postfix in
http://kb.odin.com/en/5801

back to normal with less memory/cpu hog

 

[Chad Smith]

Postfix definitely lowered my server load by quite a bit for the short time I used it, but there is still the "queue file write error" that prevents me from using it full time.

http://forum.parallels.com/showthread.php?t=98156