Exim causing crashes ?

[maharajah]

Hi guys,

I am not sure if Exim is causing my server to hang and the load to increase to 200-300

Here is a screenshot of my DirectAdmin services tab ...

is there meant to be that many exim processes ?

httpd and mysql seem ok...

I have a vbulletin site running with a xbt tracker...

server slows down and dies at the same time every day .. 4:30am Austrlian time...

Can someone please help ...

I dont mind putting some $$$ into solving this problem...

See image attached...

 

[maharajah]

Load Average 633.18, 772.07, 921.67

:S

Thats a record

Have a look at this new screenshot... all other processes are down... except exim....


When i try to clean up the que:

[root@aus XBT Tracker]# exim -bpc
bash: exim: command not found

The Exim Paniclog shows this

2006-02-06 08:40:01 1F5uQD-0000tI-LN User 0 set for local_delivery transport is on the never_users list
2006-02-06 08:40:01 1F5uQD-0000tM-PI User 0 set for local_delivery transport is on the never_users list

Any help would do :S

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[toml]

The panic log is just telling you that it can't deliver mail to root, try creating an alias for root email to be delivered to a local user.

I doubt that exim is causing the panics, especially if it is always dying at 4:30am and exim is still running. I would poke around for a cron job that runs at about that time for the culprit. Perhaps that is when quotas, backups or something else processor/disk intensive is done.

As far as the loads, I think it has more to do with with MySQL, it might need to be better tuned to handle the load. I am no expert on tuning, but it sure sounds like that is causing the high load.

 

[maharajah]

what about the 100 or so processes running in the first image ?

is that normal ?

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[toml]

That just means that you have about 100 or so emails trying to be delivered. Each email will fork an exim process to do the delivery. If you aren't sending that muc emai, then I would look for someone using your box to send spam.

 

[nobaloney]

That looks like a lot of processes but it's certainly within reason for a busy server handling a lot of mail.

What does the output of top look like when the server is busy?

Jeff

 

[maharajah]

I think its all sorted, server has been upf or 3 days with exim running fine as well...

I had the mysql optimised for the forum and didint include the tracker in my calculations...


Lowered some settings and its fine now...

also added a robots.txt to get rid of those pesky search engines ....


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