Schedule Task is not executed on time: Task Scheduler did not launch task because instance of the same task is already running

Created:

2016-11-16 13:20:24 UTC

Modified:

2017-08-16 16:41:16 UTC

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Schedule Task is not executed on time: Task Scheduler did not launch task because instance of the same task is already running

Applicable to:

  • Plesk 12.0 for Windows
  • Plesk 12.5 for Windows

Symptoms

  • Scheduled task to run PHP script stops executing after some time.

  • In Windows Task Scheduler this task is shown as Running .

  • On History tab for this task will be shown something like:

    Task Scheduler did not launch task "\\Plesk Scheduler Task #be23ba78c60597ea7122deea5a27313b"  because instance "{fb4661d8-4be8-48bc-a5e2-5da81333dcac}"  of the same task is already running.
  • %plesk_bin%\\runtask.exe process returns Non-existent process in Process Explorer.

  • disk usage is not updated

Cause

Internal issue with id #PPPM-3855 . It has been fixed in Plesk 12.5.

Resolution

Consider an upgrade to Plesk 12.5 .

Workaround

If upgrade is not possible:

  1. Backup file %plesk_bin%\\plesksrv.exe .

  2. Stop Plesk Management Service ( plesksrv ).

  3. Download archive from attachment and unzip it.

  4. Copy patched file ( plesksrv.exe ) to %plesk_bin% directory .

  5. Start Plesk Management Service ( plesksrv ).

  6. Start Plesk PopPass Service ( PopPassD ).

  7. Restart task if needed from Windows Task Scheduler.

Attachments:

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