Problem with crontab - overload my server

[spr]

Everyday, around 1-2 am cst, my server goes down for 30mins - 1 hour. It seems that it was running some pretty heavy cronjob. I'm not really familiar with it, but here is the list of crons:

14 4 * * * /scripts/upcp
0 1 * * * /scripts/cpbackup
*/15 * * * * /usr/local/cpanel/whostmgr/bin/dnsqueue > /dev/null 2>&1
2,58 * * * * /usr/local/bandmin/bandmin
0 0 * * * /usr/local/bandmin/ipaddrmap
27 5 * * * /usr/local/cpanel/whostmgr/docroot/cgi/cpaddons_report.pl --notify
0 6 * * * /scripts/exim_tidydb > /dev/null 2>&1
0 9 * * * cd /usr/local/cpanel/whostmgr/docroot/cgi/fantastico/scripts/ ; /usr/l                ocal/cpanel/3rdparty/bin/php cron.php > /dev/null 2>&1
*/5 * * * * /usr/local/cpanel/bin/dcpumon >/dev/null 2>&1

Is there anything that is not needed and can be remove from the list?

[Daniel_DBS]

All of those Crons are used by cPanel to run upgrades...

You could disable automatic upgrading from WHM and then manually run them, say once per week or so.

[spr]

Thanks Daniel,

I went to WHM->Server Configuration->Update Config and set all to manual. I wonder why Cpanel does not have an option to set the desired time for automatic update.

[Daniel_DBS]

Not sure...

You could manually edit the crontab to change the time I am sure...

That is if cPanel doesn't overwrite it during an update!

Just be sure to watch for bug fixes and any security issues that may be handled in new releases...

[EuroNut]

I wonder why Cpanel does not have an option to set the desired time for automatic update.

It does!

Go to WHM, scroll down to cPanel >> Manage Plugins, and enable cronconfig.

Once that's done, refresh the left (menu) pane of WHM and under the final options box down at the bottom (Plugins) you'll see a new option "Configure cPanel Cron Times".

In there you have a couple of options you can change the time of .....

Command:upcp "upcp is the program that updates cPanel. We recommend running this script once a day, it has, by default, been set to a random time between 9pm and 6am local time. You may set this to whatever time you wish, however we recommend setting it to run during off peak hours."

And

Command:cpbackup "cpbackup is the program used to run backups on your server. It is defaultly set to run at 1am as this is an off peak time for most servers. We recommend setting this to an off peak time early enough to allow your server to finish backups before entering peak time again. If you have backups disabled then the program will immediatly exit after run."

[Daniel_DBS]

Hmmm Interesting!

I wonder how I missed that?!?!

[Frank Broughton]

Thanks Daniel,

I went to WHM->Server Configuration->Update Config and set all to manual. I wonder why Cpanel does not have an option to set the desired time for automatic update.

It does as a plugin.... (edit) opps should have kept reading, Euronut already mentioned it.

[spr]

Thanks EuroNut,

Thanks to your help now I set up the cron run time at a better time (around 3 am CST now). We will see how it goes tonight.

Again, thank you all for your help.