xF1 Add-on - Deadlock Avoidance by Xon | NulledTeam UnderGround | The Best Scripts Site In The World
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xF1 Add-on Deadlock Avoidance by Xon 1.0.20

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Compatible XF Versions 1.x
1.4, 1.5
Additional Requirements
php +5.5
XenForo's Datawriters have a _postSaveAfterTransaction() method. This method is intended to run after a database transaction is finished, but if a DataWriter is called from with-in another DataWriter, this does not happen.

This incurs the risk that various notification actions will pull in large queries into the transaction, which increasing the risk of deadlocks on a busy forum.

This is a formally private add-on which has been in use for about a month before being released.

This add-on is only for busy forums which sometimes experience deadlocks on the listed conditions. Please test carefully as this add-on may break other add-ons.

This add-on requires php +5.5, and will not work with earlier versions.

  • Race condition for watch thread toggle
  • Deadlock on conversations
  • Deadlock on posts
  • Deadlock on resolving/rejecting Reports

Race condition for watch thread toggle

Fixes a race condition when creating/removing a watch thread state

Deadlock on conversations

Provides a workaround for a XenForo design issue where updating conversation counters can cause deadlocks.
  • rebuilding user conversation counters occurs inside a large transaction, and is deadlock prone.

Deadlock on posts

Provides a workaround for a XenForo design issue where adding/removing posts can cause deadlocks.
  • updating user alert counters occurs inside a large transaction, and is deadlock prone.

Deadlock on resolving/rejecting Reports
Provides a workaround for a XenForo design issue where adding/removing posts can cause deadlocks.
  • Sends report resolve/reject alerts inside the transaction.
Author
AnimeHaxor
Downloads
18
First release
Last update
Rating
0.00 star(s) 0 ratings

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Latest updates

  1. Bugfix update

    Improve reliability of updating forum's last post so it doesn't sometimes include very old threads
  2. 1.0.19 - Bugfix update

    Fix deleting a post in a thread not updating the forum last post Fix Out of range value for...
  3. 1.0.18 - Maintenance update

    Tweak SQL to ensure forum last post stats updates as expected. Note; by design the last post...

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