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[OpenStack Infra <2091538@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.opendev.org/c/openstack/neutron/+/937527
Committed: https://opendev.org/openstack/neutron/commit/bedb19bb220664329597fc222d820df7ccbdca46
Submitter: "Zuul (22348)"
Branch:    master

commit bedb19bb220664329597fc222d820df7ccbdca46
Author: Rodolfo Alonso Hernandez <ralonsoh@xxxxxxxxxx>
Date:   Wed Dec 11 10:08:36 2024 +0000

    Prevent calling "monkey_patch" more than once
    
    This patch is adding a check to prevent calling
    ``eventlet.monkey_patch()`` more than once per execution.
    
    This patch is also preventing any import before this method has been
    called. Any import is moved after that.
    
    Closes-Bug: #2091538
    Topic: eventlet-deprecation
    Change-Id: I675aaf124d6630b6827febb1e5a5f492ed874107


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/2091538

Title:
  [eventlet-deprecation] The method ``eventlet.monkey_patch()`` is
  called more than once

Status in neutron:
  Fix Released

Bug description:
  If the method ``eventlet.monkey_patch()`` is called more than once,
  because of [1], present in eventlet 0.37.0, the existing RLocks are
  upgraded. This leads to an issue in the oslo.messaging library with
  using ``threading.Condition()``, based on RLock.

  Error log: https://paste.opendev.org/show/bwb1L0WAhKAODIWyiep1/

  [1]https://github.com/eventlet/eventlet/commit/06ec82896ebb9a26edaf6e1ad4d63393990f15b7

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