Fix Zimbra stats graph/cron jobs

If your zimbra scheduled tasks are not running or if you don’t see your stats graphs on admin panel, the first thing that you should check if zimbra’s cronjobs. When you reinstall/move your zimbra installation we normally tend to miss cron job setups required for zimbra.

To fix this, find the Zimbra crontabs directory at /opt/zimbra/zimbramon/crontabs

Now, lets put alwal the cronjob’s to a single file (just to make your job easier) as follows:

[[email protected] crontabs]# cat crontab >> crontab.zimbra
[[email protected] crontabs]# cat crontab.ldap >> crontab.zimbra
[[email protected] crontabs]# cat crontab.logger >> crontab.zimbra
[[email protected] crontabs]# cat crontab.mta >> crontab.zimbra
[[email protected] crontabs]# cat >> crontab.zimbra

Finally,Load the crontab.zimbra file to crontab as follows:

[[email protected] crontabs]# crontab crontab.zimbra

Voila, that’s it. Wait for few minutes to start seeings the graphs. You can also verify the cornjobs by using ‘crontab -l’.

Set email alerts for cron jobs

After scheduling the cron jobs, its important to ensure that they are running without any errors.  In such cases it’s important to set email alerts for crontab.

To set email alert for your cron jobs;

Edit the crontab entry:

$ crontab -e

and enter the email id to which alerts should be sent out:

[email protected]

If MAILTO is defined but empty (MAILTO=”"), no mail will be sent.


Otherwise mail is sent to the owner of the crontab.