cherokee-worker was turning 100% CPU (8 core machine) in top leading me to
believe something was hung.
I had a peek with ps and saw 14 threads running. I used top with 'show
threads' to try to determine what was hung. I attached to the
pseudo-process id with strace that was consuming 100% CPU in top.
strace on cherokee-worker showed:
futex(0x180c480, FUTEX_WAIT_PRIVATE, 2, NULL
And no more - it was stuck.
Here are the last few error.log entries:
[16/02/2010 02:25:53.811] (warning) thread.c:1390 - Run out of file
descriptors
[16/02/2010 02:25:53.811] (warning) thread.c:1390 - Run out of file
descriptors
[16/02/2010 02:25:53.811] (warning) thread.c:1390 - Run out of file
descriptors
[16/02/2010 08:44:47.001] (error) fdpoll-epoll.c:140 - epoll_ctl: ep_fd 41,
fd 4: 'Operation not permitted'
[16/02/2010 08:44:47.042] (error) fdpoll-epoll.c:140 - epoll_ctl: ep_fd 41,
fd 6: 'Bad file descriptor'
[16/02/2010 22:17:09.005] (error) fdpoll-epoll.c:113 - epoll_ctl: ep_fd 27,
fd 70: 'Bad file descriptor'
[16/02/2010 22:17:25.100] (error) fdpoll-epoll.c:140 - epoll_ctl: ep_fd 27,
fd 70: 'No such file or directory'
[16/02/2010 22:17:25.100] (error) thread.c:429 - Could not remove fd(70)
from fdpoll
bbpad...@lnn1127:~$ date
Wed Feb 17 07:36:40 CST 2010
In the vhost logs, the last few entries are like so.
error log:
[17/02/2010 01:12:28.969] (warning) handler_file.c:252 - Unparseable time
'4949a788=4d6a'
[17/02/2010 01:12:29.034] (warning) handler_file.c:252 - Unparseable time
'4949a4a9=58b3'
[17/02/2010 01:12:29.056] (warning) handler_file.c:252 - Unparseable time
'4949a837=3bc1'
[17/02/2010 01:13:11.579] (warning) handler_file.c:252 - Unparseable time
'4949a835=3ed7'
[17/02/2010 01:13:45.891] (warning) handler_file.c:252 - Unparseable time
'49b6485a=8f88'
Nothing interesting in the access logs. I can see that the cherokee stopped
responding at 17/Feb/2010:01:17:42 server time
I had to kill -9 the cherokee-worker process to restart it. It seems to be
running fine now.
Any thoughts?
Ryan
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