URGENT! Swap Location/Removal

[iUnknown]

Hi,

Litespeed is causing my server to constantly have server loads going extremely high. I checked the swapping directory and it is set to what I have previously set it to (/opt/lsws/swap) and I started deleting some files in /tmp/lshttpd/swap to free up some space in /tmp and Litespeed has made the server load 80+. What should I do?

Thanks very much.

 

[iUnknown]

Sorry, it is a major coincidence that when I started doing this we went under DDoS. What I've said has nothing to do with the high load. I will try and sort that out.

 

[iUnknown]

I was wrong, there is a bad issue with litespeed. It is going crazy and using up all of my processing power now... That's all I can really say, it's shot the server load up and the %ni in top has shot up too, with litespeed being the cause.

 

[iUnknown]

It's running as priority 1 when in settings it's 0? I think that may be the issue?

 

[mistwang]

For this kind situation, it is more likely PHP processes gets into a infinite loop for some reason.


I would just kill those PHP processes, see if it comes back.
Restart LSWS may get those PHP processes killed as well.

If it does come back, try "strace" the process using too much CPU, see if you can find out anything.

CPU cycles used by processes with priority other "0" will be counted towards %ni, your problem is that PHP were using too much CPU, not the process priority.

 

[iUnknown]

The processes would get killed but they kept coming back when litespeed started. Changing my setting for max keep alive requests from 1000 to 10000 seems to have resolved the problem...

 

[iUnknown]

This has not solved the problem, it just seems to happen at peak hours (based in the UK). I've tried reinstalling litespeed and it hasn't helped.

 

[anewday]

Better ask mistwang to take a look in your server.