Reviewed: https://review.openstack.org/246343
Committed:
https://git.openstack.org/cgit/openstack/nova/commit/?id=337a1b029a1f144f577a78712413a4182dd525f8
Submitter: Jenkins
Branch: master
commit 337a1b029a1f144f577a78712413a4182dd525f8
Author: Mark McLoughlin <mar...@redhat.com>
Date: Tue Nov 17 10:17:44 2015 +0000
servicegroup: remove the zookeeper driver
We have had a "untested and risky to use in production" log warning
message for this driver since Kilo, it is currently broken (see below),
there are no obviously active users or contributors, and we are planning
on enabling Zookeeper usage by adopting the tooz library.
bug #1443910 shows that the driver fails to load because eventlet 0.17
broke evzookeeper by moving _SocketDuckForFd from eventlet.greenio to
eventlet.greenio.py2 in commit 449c90a. The 0.17 release was in Feb,
2015. The evzookeeper library hasn't been updated since Sep 2012 and the
sole maintainer is the original author of the zookeeper servicegroup
driver.
The tooz driver spec - Ibf70c2dbe308fc8e4dd277d8c75c4445b3dfce90 -
proposes a formal deprecation period for the zk driver, during which
existing zk driver users are encouraged to move to tooz. However, given
the state of the zk driver, we must conclude that there are no existing
users who need a graceful migration path. Removing the driver will
avoid potential confusion for new users and simplify the path to
adopting tooz.
Closes-Bug: #1443910
Closes-Bug: #1414517
Closes-Bug: #1414536
Signed-off-by: Mark McLoughlin <mar...@redhat.com>
Change-Id: I2dba71e71b1ed7cf8476e8bfe9481e84be5df128
** Changed in: nova
Status: In Progress => Fix Released
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You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1414536
Title:
Zookeeper servicegroup driver's get_all() erroneously raises
ServiceGroupUnavailable
Status in OpenStack Compute (nova):
Fix Released
Bug description:
The Zookeeper servicegroup API driver raises
nova.exception.ServiceGroupUnavailable when there are no members in UP
state for a group. However, the other two drivers for memcache and DB,
return an empty list. Since the Zookeeper driver actually calls its
own get_all() method in its is_up() method, there's actually no way
the Zookeeper driver was working correctly, since if
ServiceGroupUnavailable was raised from is_up(), things would go
haywire in many places.
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