Fuel for OpenStack

  1. Series newton
  2. Bug #1653083
  3. Comment #2

Comment 2 for bug 1653083

Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix merged to fuel-web (master)

Reviewed: https://review.openstack.org/426675
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=ff04eb8394d81750608a95bedf6ab8cd5244d5e8
Submitter: Jenkins
Branch: master

commit ff04eb8394d81750608a95bedf6ab8cd5244d5e8
Author: Georgy Kibardin <email address hidden>
Date: Mon Jan 30 11:47:50 2017 +0300

    Moving task cache update into task creation transaction

    Doing this we avoid inclusion of task cache update statement into the next
    transaction which may cause different problems such as deadlock.
    In this particular case we've got the following deadlock:
    1. DeleteIBPImagesTask makes UPDATE tasks SET cache....
    2. Response handler in receiver makes SELECT clusters FOR UPDATE
    3. The code following DeleteIBPImagesTask makes SELECT clusters FOR UPDATE
    4. Response handler performs SELECTS tasks FOR UPDATE

    Change-Id: Ic8e5f2386364421b0667f920499e031f587f726e
    Closes-Bug: #1653083