Cron Eating All CPU Cycles

[exrapidshare]

My current Installation running Fine with (10 Agents , recording (All force) , But After 5-7 Hour Cron Starting in Process & taking 95-99% of CPU ,Due to that facing Voice issue until i reboot the server. plz help Me ASAP.
Thanks In Advance.
see this screen shoot .


---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
GoAutoDial CE 2.1 | VICIDIAL: 2.4-309a | BUILD: 110430-1642 | Asterisk 1.4.39.1 | Single Server | No Digium/Sangoma Hardware | No Extra Software After Installation |
Kernel Version 2.6.18-238.9.1.el5.goPAE (SMP) | Single Quard Core CPU Model Intel(R) Xeon(R) CPU X3330 @ 2.66GHz | 4 Gig of ram.

[williamconley]

Thanks for posting your specs!

Suggestions:

Use "htop" instead of "top". Then press "t" which will show you a "tree" view which will help you understand what process is running to cause this process (possibly ...) and the parent(s) of the process. For instance: if the ./find process is being run by a specific cron job, it may appear here.

Use "crontab -e" to find the processes that are running during your work hours and move them to NONwork hours if they are necessary.

Use "iftop" to find unauthorized access to your system if you believe someone is hacking you (although they do not ordinarily activate a cron "find" process upon hacking the system so that is highly unlikely).

[exrapidshare]

Thanks for your Suggestion :

I posted the above screen shoot from top -c , i think it is similar to htop .
---------------------------------------------------------------------------------------------------------
I found this entry in crontab:

### remove old vicidial logs and asterisk logs more than 2 days old
28 0 * * * /usr/bin/find /var/log/astguiclient -maxdepth 1 -type f -mtime +2 -print | xargs rm -f
29 0 * * * /usr/bin/find /var/log/asterisk -maxdepth 3 -type f -mtime +2 -print | xargs rm -f
30 0 * * * /usr/bin/find / -maxdepth 1 -name "screenlog.0*" -mtime +4 -print | xargs rm -f
--------------------------------------------------------------------------------------------------------------
If they are responsible how to fix it ?

[fibres]

Hi

Just out of interest what time zone is your system clock set to? Is it set to your local time?

Those three entries are set to run aqt 00:28 00:29 and 00:30 so 28, 29 and 30 mins past midnight.

If your timezone is set wrong it is possible that these are running in the middle of you using the system.

If you run the #date command from the linux command line on your server it will tell you what time the local system time is set to.7

Regards

[exrapidshare]

Hi

My time zone is set to +5:30 IST and according to local time it is right .

what are the correct values in crontab for me ?

thanks in advance

[IslandCabby]

exprapidshare,

If your server time zone is set to your local time (run "date" from your command line to make sure) then your cron settings for those tasks are fine, you'd be looking for the cron process that runs while you're having the issue and then move that process to a different time (cron settings are : minute hour date month dayoftheweek i.e your process "29 0 *** /usr/bin/find /var/log/asterisk -maxdepth 3 -type f -mtime +2 -print | xargs rm -f" is set to run at the 29th minute "29" after the midnight hour "0" everydate "*" of every month "*" of every day of the week "*". Try williamconley's suggestion to use htop in tree view to determine what's running when the cpu actually spikes.