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Cron job is stuck in “running” status

Last update: Thu Apr 25 2024 00:00:00 GMT+0000 (Coordinated Universal Time)

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This article provides solutions for when Adobe Commerce cron jobs do not finish executing and persist in a “running” status, which prevents other cron jobs from running. This can happen for a number of reasons, such as network issues, application crashes, re-deployment issues.

Affected products and versions

Adobe Commerce on cloud infrastructure, all versions

Symptom symptom

Symptoms of cron jobs that must be reset include:

  • Large quantity of jobs appear in the cron_schedule queue
  • Site performance starts to degrade
  • Jobs fail to execute on schedule

Solutions solutions

Solution for stopping all cron jobs at once solution-stop-all-crons-at-once

WARNING
Running this command without the --job-code option resets all cron jobs, including those currently running, so we recommend using it only in exceptional cases, such as after you have verified that all cron jobs must be reset. Re-deployment runs this command by default to reset cron jobs, so they recover appropriately after the environment is back up. Avoid using this solution when indexers are running.

To resolve this issue, you must reset the cron job(s) using the cron:unlock command. This command changes the status of the cron job in the database, ending the job forcefully to allow other scheduled jobs to continue.

  1. Open a terminal and use your SSH keys to connect to the affected environment.
  2. Get the MySQL database credentials: shell echo $MAGENTO_CLOUD_RELATIONSHIPS | base64 -d | json_pp
  3. Connect to the database using mysql : shell mysql -hdatabase.internal -uuser -ppassword main
  4. Select the main database: shell use main
  5. Find all running cron jobs: shell SELECT * FROM cron_schedule WHERE status = 'running';
  6. Copy the job_code of any job running longer than usual.
  7. Use the schedule IDs from the previous step to unlock specific cron jobs: shell ./vendor/bin/ece-tools cron:unlock --job-code=<job_code_1> [... --job-code=<job_code_x>]

Solution for stopping a single cron solution-stop-a-single-cron

  1. Open a terminal and use your SSH keys to connect to the affected environment.

  2. Check long running tasks by using the following command:

    date; ps aux | grep '[%]CPU\|cron\|magento\|queue' | grep -v 'grep\|cron -f'

  3. In the output, like in the sample output below, you’ll see current date and list of processes. The START column shows starting time or date of the process:

    code language-none 
    Wed May  8 22:41:31 UTC 2019
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root       590  0.0  0.0  27528  2768 ?        Ss   Jan15   0:49 /usr/sbin/cron -f
bxc2qly+ 25855  0.0  0.0  23724  2184 ?        S    20:51   0:00 logger -d -u /run/bxc2qlykqhbqe_stg-cron.sock -p cron.info -s -t cron-bxc2qlykqhbqe_stg-bxc2qlykqhbqe_stg
bxc2qly+ 25860 57.7  1.3 584220 222692 ?       S    20:51   0:02 php bin/magento cron:run
bxc2qly+ 25863  0.0  0.0  23724  2472 ?        S    20:51   0:00 logger -d -u /run/bxc2qlykqhbqe-cron.sock -p cron.info -s -t cron-bxc2qlykqhbqe-bxc2qlykqhbqe
bxc2qly+ 25876 53.0  0.6 475472 111468 ?       R    20:51   0:01 /usr/bin/php7.1-zts /app/bxc2qlykqhbqe_stg/bin/magento cron:run --group=index --bootstrap=standaloneProcessStarted=1
bxc2qly+ 25878 57.0  0.6 475472 112080 ?       R    20:51   0:01 /usr/bin/php7.1-zts /app/bxc2qlykqhbqe_stg/bin/magento cron:run --group=staging --bootstrap=standaloneProcessStarted=1
bxc2qly+ 25880 50.5  0.6 475472 111312 ?       R    20:51   0:01 /usr/bin/php7.1-zts /app/bxc2qlykqhbqe_stg/bin/magento cron:run --group=catalog_event --bootstrap=standaloneProcessStarted=1
bxc2qly+ 25882 48.5  0.6 475472 111220 ?       R    20:51   0:00 /usr/bin/php7.1-zts /app/bxc2qlykqhbqe_stg/bin/magento cron:run --group=consumers --bootstrap=standaloneProcessStarted=1
bxc2qly+ 25884 50.5  0.6 475472 111372 ?       R    20:51   0:01 /usr/bin/php7.1-zts /app/bxc2qlykqhbqe_stg/bin/magento cron:run --group=ddg_automation --bootstrap=standaloneProcessStarted=1
bxc2qly+ 25890 32.5  0.6 475368 110672 ?       R    20:51   0:00 /usr/bin/php7.1-zts /app/bxc2qlykqhbqe/bin/magento cron:run --group=staging --bootstrap=standaloneProcessStarted=1
bxc2qly+ 25892 34.5  0.6 475472 110724 ?       R    20:51   0:00 /usr/bin/php7.1-zts /app/bxc2qlykqhbqe/bin/magento cron:run --group=catalog_event --bootstrap=standaloneProcessStarted=1
bxc2qly+ 25894 31.5  0.6 475368 110136 ?       R    20:51   0:00 /usr/bin/php7.1-zts /app/bxc2qlykqhbqe/bin/magento cron:run --group=consumers --bootstrap=standaloneProcessStarted=1
bxc2qly+ 25896 29.0  0.6 475320 109876 ?       R    20:51   0:00 /usr/bin/php7.1-zts /app/bxc2qlykqhbqe/bin/magento cron:run --group=ddg_automation --bootstrap=standaloneProcessStarted=1

  4. If you see a long running cron jobs which may the block deployment process, you can terminate the process using the kill command. You can identify the Process ID (found the PID column), and then put that PID in the command to kill the process.
    The kill process command is:

    kill -9 <PID>

  5. Then you can re-deploy, if you were trying to re-deploy.

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