Why cron_schedule table is empty?

Question

I'm trying to run my custom module that setup two cronjobs. Here is my config.xml file.

<config>
    <global>
        <models>
            <RLTS_Certification>
                <class>RLTS_Certification_Model</class>
            </RLTS_Certification>
        </models>
    </global>
    <crontab>
        <jobs>
            <certi_status_update>
                <schedule>
                    <cron_expr>*/2 * * * *</cron_expr>
                </schedule>
                <run>
                    <model>RLTS_Certification/StatusHelper::updateCertiStatus</model>
                </run>
            </certi_status_update>

            <certi_renewal_reminder>
                <schedule>
                    <cron_expr>*/2 * * * *</cron_expr>
                </schedule>
                <run>
                    <model>RLTS_Certification/StatusHelper::certiRenewalReminder</model>
                </run>
            </certi_renewal_reminder>           
        </jobs>
    </crontab>
</config>

My cronjobs are not visible in cron_schedule table. One more thing is, that table is empty. What I need to do to setup these cronjobs?

score 2 · Answer 1 · answered Jul 15 '16 at 12:48

2

In your local system, you have to use your browser to run http://yourdomain.com/cron.php or php-cli to execute cron.php in the root of the application.

answered Jul 15 '16 at 12:48

Jaimin Parikh

2,392
2
13
27

I tried http://mydomain/cron.php on my browser but It returns just an empty page. – Muhammad Saeed Khan Jul 15 '16 at 12:56
Yes it returns empty page but now cron jobs are inserted in cron_schedule table. – Jaimin Parikh Jul 15 '16 at 12:58
but cron_schedule table is still empty – Muhammad Saeed Khan Jul 15 '16 at 12:59
clear all cache and run it again. it works. – Jaimin Parikh Jul 15 '16 at 13:06
I remove var folder and again hit the cron.php file, but table is still empty – Muhammad Saeed Khan Jul 15 '16 at 13:09
make sure that no error is generate while run cron.php and also check log for same. Also you can check by enable php display error log. – Jaimin Parikh Jul 15 '16 at 13:11
No error displayed, ini_set('display_errors', 1); in index.php but still blank screen when hit cron.php. Also no error in var/log. Table still empty – Muhammad Saeed Khan Jul 15 '16 at 13:25

score 0 · Answer 2 · edited Apr 13 '17 at 12:55

0

It appears to be a problem with the code for $isShellDisabled in cron.php I commented out the two lines that were determining it (around line 50) and made the results be true. $isShellDisabled = true;

The first time I ran it with that fix the table repopulated instantly and I do see changes each time the cron job runs.

Here's a thread on the same problem from ver 1.8:

Magento cron.php Does Nothing After it Runs

edited Apr 13 '17 at 12:55

Community

1

answered Oct 13 '16 at 19:13

Chris - On the Grid Webdesign

69
6

I explained why $isShellDisabled = true works and what the real solution to this problem is here: http://magento.stackexchange.com/questions/137130/is-adding-isshelldisabled-true-in-cron-php-recommended/137166#137166 – Fabian Schmengler Oct 24 '16 at 19:05

score 0 · Accepted Answer · answered Nov 25 '16 at 12:58

The issue is magento_root/cron.php was not set in server crontab. We need to add this file in crontab so it worked for us as follow.

# crontab -l (this command will list all the Cron jobs in Crontab)

There should be an entry for magento_root/cron.php file. If not, we need to add this file because this file is responsible for initiating your Magento Cron jobs. So we need to edit the Crontab as follow.

# crontab -e

Add the following statement in the file and close after saving it.

*/5 * * * * wget -O /dev/null -q path_to_magento_root/cron.php > /dev/null

For more information, visit this link

Why cron_schedule table is empty?

3 Answers3