Problems this morning with litespeed going unresponsive

[pardis]

today after kernel update , this problem happen.
not many cpu consuming . 1or 2 core

 

[Jon K]

Pardis is it possible to get an output for when you run top?

 

[pardis]

top - 18:50:20 up 2:18, 2 users, load average: 3.37, 3.56, 3.02
Tasks: 461 total, 4 running, 449 sleeping, 6 stopped, 2 zombie
Cpu(s): 26.5%us, 3.9%sy, 0.1%ni, 66.4%id, 2.5%wa, 0.0%hi, 0.6%si, 0.0%st
Mem: 65786972k total, 65228144k used, 558828k free, 3025908k buffers
Swap: 33554428k total, 1220k used, 33553208k free, 52872536k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
60524 nobody 20 0 156m 34m 7708 S 6.0 0.1 1:05.86 litespeed
64769 nobody 20 0 340m 18m 12m S 0.0 0.0 0:00.00 lsphp
64917 nobody 20 0 340m 9256 2948 S 0.0 0.0 0:00.14 lsphp



i have too many :
Status 400: Http request header is too big, abandon!

in my error_log

 

[NiteWave]

Status 400: Http request header is too big, abandon!

have you changed
Max Request URL Length (bytes) : 8192
Max Request Header Size (bytes):16380
in lsws web admin->Server->Tuning->Request/Response ?

if not, that mean request header has exceeded default 16380 bytes, that's abnormal, and the error message shows that lsws has detected it and reject the request. so maybe you're under some sort of attack, or your cookie too big (cookie will be in request header)