Pacemaker High Availability resource agents for OpenStack
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Luca Miccini 8b9c49fd96 Add a configurable delay to Nova Evacuate calls
In case /var/lib/nova/instances resides on NFS we have seen migrations
failing with 'Failed to get "write" lock - Is another process using the
image' errors.

This has been tracked down to grace/lease timeouts not having expired
before attempting the migration/evacuate, so in this cases it might be
desirable to delay the nova evacuate call to give the storage time to
release the locks.

Change-Id: Ie2fe784202d754eda38092479b1ab3ff4d02136a
Resolves: rhbz#1740069
2019-09-25 20:33:45 +02:00
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Pacemaker High Availability resource agents for OpenStack

This repository contains a collection of Pacemaker resource agents (RAs) which can be used to provide highly available OpenStack services managed within Pacemaker clusters.


Please see the OpenStack High Availability Guide for usage instructions. It is a bit out of date, but most of the information is still accurate; hopefully we can update it soon.


Bugs can be viewed and reported via <>.

Suggestions for improvements are very welcome; changes can be submitted for review via the normal OpenStack development process.


Martin Loschwitz started this repository in 2012, hosted at <>, and together with Sébastien Han and Emilien Macchi contributed the majority of resource agents.

Martin eventually stepped down from maintainership, and in October 2015 the project was moved to StackForge.