massive cpu usage from litespeed

[azn_romeo_4u]

User Domain %CPU %MEM MySQL Processes
nobody 210.02 9.21 0.0
Top Process %CPU 47.5 lsphp5
Top Process %CPU 46.0 lsphp5
Top Process %CPU 45.0 lsphp5

It ran like this for 8 hours yesterday until I restarted the server. Now around 8am today, it's running like this again.

[mistwang]

Looks like a run away PHP process, either php script problem or php internal bug.

try "strace -p <pid_of_lsphp5>",

you can set the "max_execution_time" in php.ini to minimize the cpu time consumed by those bad PHP processes before having a fix.

[azn_romeo_4u]

Thank you,

I might be under a ddos attack. I increased my CSF firewall to high and the load suddenly drops down to 1 again. I don't even see more than one instances of lsphp5 in the running process either.

When i set it to low, load jumps to 40 again.

[mistwang]

this might be of interest to you.

http://www.litespeedtech.com/how-tos.html#qa_dos

[anewday]

Glad you solved it and it wasn't related to litespeed.

http://www.webhostingtalk.com/showpo...6&postcount=26