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[OpenStack Infra <1522436@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/300571
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=70068992e37c80e9aa8e70f017aa35132d7e5aee
Submitter: Jenkins
Branch:    master

commit 70068992e37c80e9aa8e70f017aa35132d7e5aee
Author: Oleg Bondarev <obondarev@xxxxxxxxxxxx>
Date:   Fri Apr 1 19:40:20 2016 +0300

    Use new DB context when checking if agent is online during rescheduling
    
    Commit 9ec466cd42de94c2fad091edfd7583a5f47eb87a was not enough
    since it checked l3 agents in the same transaction that was used
    to fetch down bindings - so agents always were down even if actually
    they went back online.
    This commit adds context creation on each iteration to make sure
    we use new transaction and fetch up-to-date info for the agent.
    
    Closes-Bug: #1522436
    Change-Id: I12a4e4f4e0c2042f0c0bf7eead42baca7b87a22b


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

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https://bugs.launchpad.net/bugs/1522436

Title:
  No need to autoreschedule routers if l3 agent is back online

Status in neutron:
  Fix Released

Bug description:
   - in case l3 agent goes offline the auto-rescheduling task is triggered and starts to reschedule each router from dead agent one by one
   - If there are a lot of routers scheduled to the agent, rescheduling all of them might take some time
   - during that time the agent might get back online
   - currently autorescheduling will be continued until all routers are rescheduled from the (already alive!) agent

  The proposal is to skip rescheduling if agent is back online.

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