Francis SOUYRI <[EMAIL PROTECTED]> wrote: > Time to time we have lot of mail in the incoming queue, "no" mail in the > active queue, the "qmgr "is very" slow and the server is very idle. We > tested the antispam/virus to see if there is a problem but the response > is very good.
When you say "very idle" what do you mean? Have you looked at disk, or just CPU? If you haven't looked at disk as a possible cause of your bottleneck, try running "vmstat 1" next time you see this happening and look at the last two columns, id and wa (idle cpu, wait cpu). If both are high, then qmgr may be slowed down by I/O wait not CPU. You may already know this, and you may already have checked for this, but I think if you had you'd likely have mentioned it in the email, so since you didn't mention it, maybe you didn't look at it. Possible solutions: - Get a faster disk - Put your postfix queues on a separate disk from other stuff - Mount that partition with the "noatime" option - Put your postfix queues on tmpfs (but you could lose mail in a crash) -- Cos
