I have two cron jobs in my site (I'm using Elysia Cron). They are set in my own module. One runs every minute and one every hour. Code below:

function mymodule_cronapi($op, $job = NULL) {
    $items['Import J Data'] = array(
        'description' => 'Import J Data',
        'rule' => '* * * * *',
        'callback' => 'mymodule_import_j_data_cron',
    $items['Import Q Data'] = array(
        'description' => 'Import Q Data',
        'rule' => '0 * * * *',
        'callback' => 'mymodule_import_q_data_cron',
    return $items;

function mymodule_import_j_data_cron($what) {   

function mymodule_import_q_data_cron($what) {

In my server (centOS), i have the following line in my crontab (with correct MYKEY and url):

* * * * * root wget -O - -q -t 1 http://.../cron.php?cron_key=[MYKEY] >/dev/null 2>&1

When the second job runs (the one set to run every hour), the other one stops and I get the following error in my site log:

Attempting to re-run cron while it is already running.

The firs job runs for about 15-20 minute. After it ends, the other one starts again.

My question is, it's not possible to have both cron jobs running at the same time? Am I missing some settings in elysia cron?

1 Answer 1


It looks like ultimate cron can run parallel jobs.

  • Thanks cilefen. I installed Ultimate Cron and it seems better than Elysia but I still can't get the "every minute" job to run when the other one is also running and I can't find nothing on the API on how to configure this.
    – zephirus
    Dec 8, 2015 at 17:16
  • UPDATE: I managed to do it. There are settings inside drupal cron page. The number of threads were set to 1. Changed that and now the jobs run at the same time.
    – zephirus
    Dec 8, 2015 at 17:36

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