Hi JC,
I don't see a lot of messages in /var/log/xymon, but I do see some messages in the messages log:
Dec 30 10:00:39 vipservd kernel: type=1400 audit(1388415639.785:228): avc: denied { read } for pid=22630 comm="httpd" name="xymon.html" dev=dm-0 ino=156411 scontext=system_u:system_r:httpd_t:s0 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file
30 10:00:39 vipservd kernel: __ratelimit: 39 callbacks suppressed
Dec 30 10:00:39 vipservd kernel: type=1400 audit(1388415639.768:226): avc: denied { search } for pid=22630 comm="httpd" name="xymon" dev=dm-0 ino=162241 scontext=system_u:system_r:httpd_t:s0 tcontext=unconfined_u:object_r:user_home_dir_t:s0 tclass=dir
Dec 30 10:00:39 vipservd kernel: type=1400 audit(1388415639.785:227): avc: denied { search } for pid=22630 comm="httpd" name="server" dev=dm-0 ino=162242 scontext=system_u:system_r:httpd_t:s0 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=dir
Dec 30 10:00:39 vipservd kernel: type=1400 audit(1388415639.785:228): avc: denied { read } for pid=22630 comm="httpd" name="xymon.html" dev=dm-0 ino=156411 scontext=system_u:system_r:httpd_t:s0 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file
Dec 30 10:00:39 vipservd kernel: type=1400 audit(1388415639.785:229): avc: denied { open } for pid=22630 comm="httpd" name="xymon.html" dev=dm-0 ino=156411 scontext=system_u:system_r:httpd_t:s0 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file
Would I just execute the strace like so:
strace ./xymon.sh
David Diep
Look out for those in need this winter. When the temperature or wind chill is 32?F or below, the District issues a Hypothermia Alert. For assistance during an Alert, call the Shelter Hotline<http://dhs.dc.gov/page/hypothermia-alert-plan>; at X-XXX-XXX-XXXX or 311.
-----Original Message-----
From: J.C. Cleaver [mailto:user-87556346d4af@xymon.invalid]
Sent: Thursday, December 26, 2013 5:11 PM
To: Diep, David (OCTO-Contractor)
Cc: xymon at xymon.com
Subject: Re: [Xymon] xymond_channel consuming a lot of CPU?
On Mon, December 23, 2013 11:26 am, Diep, David (OCTO-Contractor) wrote:
Hi,
I saw a little bit about this back in 8/31/12
(http://lists.xymon.com/archive/2012-August/035381.html), but it was
never resolved? Has anyone else seen xymond_channel consuming so much CPU time?
I can't imagine this being normal.
top - 14:07:56 up 6 days, 2:52, 1 user, load average: 0.97, 0.63, 0.58
Tasks: 117 total, 2 running, 115 sleeping, 0 stopped, 0 zombie
Cpu(s): 22.7%us, 26.7%sy, 0.0%ni, 49.5%id, 0.3%wa, 0.2%hi, 0.0%si,
0.7%st
Mem: 245792k total, 235308k used, 10484k free, 9248k buffers
Swap: 1304648k total, 96604k used, 1208044k free, 44164k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
24914 xymon 20 0 7080 1388 1148 R 98.7 0.6 22:59.70
xymond_channel
Hi David,
That much CPU time definitely isn't normal... Were you able to get an strace or see anything in the logs from around when that was happening.
The only thing that immediately comes to mind might be some sort of semaphore/IPC issue causing it to spin on incoming channel messages from xymond.
Regards,
-jc