Server out of memory

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philipm

Member
#1
#1
We have a server running litespeed that has died 2 times so far with the following message on the screen: http://cl.ly/634011c840839cd719cb

In the webserver logs we are seeing the following:
2010-08-23 23:18:58.479 [NOTICE] [xxx.xxx.xxx.xxx:51615-0#domain.com] No request delivery notification has been received from LSAPI process group [5329], possible run away process.
2010-08-23 23:19:00.751 [NOTICE] [xxx.xxx.xxx.xxx:51615-0#domain.com] Retry with new process group.

SysStat also shows that the load went to nearly 90% system time.

I saw the thread here: http://litespeedtech.com/support/forum/showthread.php?t=1541

And passed this information along to our customer but they are still unhappy and would like to determine if this is a bug is lsphp5 or if there is something that we can do to prevent this from happening again. I can get logs as needed to resolve this issue.
 
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phattran911

Well-Known Member
#2
#2
Are you running other services on this server? I used to run wowza media server which consumed lots of memory. When the site was getting so busy, the combination of wowza media server and web server like apache and litespeed would kill the server

or it could be somebody is trying to attack you. Try to tune up the security, low the soft connection and hard connection limit to 5 and 6 to see if it helps. If litespeed blocks IP and your load goes down, this could be an attack.
 
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philipm

Member
#4
#4
phattran911: No other services, Our hosting environment is quite secure (FireHost) so I don't think that was the issue either.


mistwang: Ubuntu 9.04 standard server setup.
 
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mistwang

LiteSpeed Staff
#5
#5
That's a issue between PHP and MySQL, not really something to do with LSWS.
Check your MySQL query with "mysqladmin processlist", limit memory usage of PHP.
 
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