High CPU Usage (Trace) (Kill) [migration] : website not available

Sam_Vargese

Member
Mar 22, 2013
5
0
1
cPanel Access Level
Website Owner
Hi
I have a problem with my dedicated server, CPU process is very high and the website is not available. here is the WHM process manager details:
Code:
Pid 	Owner 	Priority 	CPU % 	Memory % 	Command
23 (Trace) (Kill) 	root 	-  90.0 	0.0 	[migration]
14 (Trace) (Kill) 	root 	-  66.3 	0.0 	[migration/3]
20 (Trace) (Kill) 	root 	-  64.1 	0.0 	[migration/5]
17 (Trace) (Kill) 	root 	-  55.6 	0.0 	[migration/4]
11 (Trace) (Kill) 	root 	-  49.6 	0.0 	[migration/2]
26 (Trace) (Kill) 	root 	-  48.9 	0.0 	[migration/7]
7 (Trace) (Kill) 	root 	-  39.0 	0.0 	[migration/1]
By killing all process I can access my website for few minutes. But it becomes unavailable again after few minutes . I am running a file uploading and video streaming script on my server. Here is server Config:

Technology :Nehalem
Processor :Intel Xeon W3520
Intel Smart Cache: 8MB
Cores: 4
Threads: 8
Frequency: 2.66GHz+
Turbo Boost: 2.93GHz
Virtualisation : Yes
RAM : 24 GB DDR3
Hard drive : 2x 2TB SATA2
RAID : SOFT RAID - 0/1
Connection :1 Gbps Lossless

I contacted hosting company, they helped me with netbooting and rebooting the machine. But still Problem with high CPU usage

I hope it can be solved from Cpanel forum

Thanks
 

JaredR.

Well-Known Member
Feb 25, 2010
1,834
23
143
Houston, TX
cPanel Access Level
Root Administrator
Migration processes are how the Linux kernel handles allocating threads across multiple CPU cores. There is going to be one for each CPU core. You should not kill them. If they are using a lot of CPU time, it is a symptom of a load problem, not the cause.

By doing a Google search for "linux migration processes" I found these articles, which should help:

linux - What is the 'migration" process? - Super User
linux migration process cpu usage is so high, why? - Stack Overflow

The migration processes are not the cause of the load problem. Run top to see what else is causing the load on your server.