Hochstrasser Benedikt wrote:
> What exactly is your exim busy with? Receiving mail? Sending Mail?
> Waiting for callouts? Antivirus scanning?
I dont know ... how to know ?
> CPU is just one of the scarce resources, IP bandwidth may be another.
Yes but i already monitor the bandwidth.
And when i 'killall exim4' all is quiet (10% CPU used), and the website
becomes reactive.
> What is your web server doing? Static pages? Lots of DB and PHP?
Runing Zope (yes i know its a huge CPU consuming server too).
> One possibility may be to use traffic shaping to guarantee minimum
> bandwidth for your web server (eg. http://www.m0n0.ch/wall).
It's not a bandwidth matter.
I (may be the wrong way) solved the problem by puttins these settings in
the Main configuration part of exim4 conf file :
# How much load we're willing to accept
# At this LA only hosts in smtp_reserve_hosts can connect
smtp_load_reserve = 5
# When to abandon queue runs
deliver_queue_load_max = 5
# After a this load we only queue incoming messages
queue_only_load = 5
# max queue running processes to run simultaneously
queue_run_max = 5
# Lets you set how many SMTP calls are handled
# This allows many more TCP connections in wait state
smtp_connect_backlog = 50
# When we start just queueing
smtp_accept_queue = 15
# We will not accpet more than 200 (changed to 20)
# incoming SMTP calls at once
smtp_accept_max = 20
I dont really understand the meanings of these but i see much less exim4
processes and it rocks.
Now : How will I know if too much mails are not queued ? because a guess
that if too much mails are queued, I will loose some ... isn'it ?
What other settings do you suggest me (are these values too much low ?) ?
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