Fix: Plesk Watchdog error of 01-01-2011

January 14, 2011 — 3 Comments

#1 – The Problem

Ever since January 1st, 2011 (when the new year rolled in), Plesk servers that have Watchdog installed have started giving errors on the crons. Administrators receiving these cron error emails will see something like this:

#2 – The Fix

The temporary work around was to comment out the watchdog cron so that they would not run. Plesk has created a patch that will correct this problem. Here is their forum post regarding the patch:

The patch files are version specific so be sure to grab the one that matches up to your Plesk version. You need to be logged into the forums in order to download the zip files. For simplicity, you can download it from my server instead. I have also detailed all commands necessary to implement it, so you simply copy/paste the commands as you will probably find that easier.

2.1 – Download and unpack the zip file:

For Plesk 8.6:
For Plesk 9.x:
For Plesk 9.5.x & 10.x:
Now to unpack:

2.2 – Backup old files and move new files into place:

2.3 – Set ownership/permissions of new file:

2.4 – Clean up:

#3 – Test

Test Watchdog to make sure it no longer gives errors. If successful, it should return no results when ran:

#4 – Revert previous temp fix:

As mentioned above, prior to the fix, a work around was suggested: to simply comment out the Watchdog crons to keep them from running. You can safely re-enable them now.

Make sure that none of the Watchdog crons are commented out (none have the ‘#’ symbol in front). A correct root cron will look like this:

Jacob "Boom Shadow" Tirey

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A linux web hosting administrator, a professional production sound man, and a renegade cop without nothing left to lose.... Ok, that last part is made up. In all seriousness, my passion in life is to help people; whether that be with help running their sites or with their productions. The name 'Boom Shadow' was given to me by a great group of filmmakers called Star Wipe Films. back in 2005 and has been with me since. I hope my site is helpful to you, and if there's something you need, drop me a line!
  • Nice tip. Saved me half an hour hunting down the answer. Thanks!

  • Gauthier Douchet


    Just a short message to thank you for this tip.
    I got a plesk 9.5.4 under Debian Etch and after upgrade from Etch to Lenny, I met this problem.

    Thanks to your clear explanation, the problem is resolved.
    Thank you!

    • @ @69cb196960c0a25abfa0c36600a1109b:disqus : I’m glad I could help!