[openstack-dev] Glance hang uploading images
therese.mchale at hp.com
Mon Jan 14 15:33:16 UTC 2013
We've had this in production for sometime (slight different patch on diablo ) and on folsom code base
without issues. (Ubuntu natty and precise)
Is this specific to Fedora 18? (i.e. do you know if it is reproducible on Fedora 16 for
The code change reverts a previous change to use multiple wsgi apps for glance (which was a fix for an
Issue with multiple worker threads)
Instead it uses one wsgi app but uses one database engine per worker process so that
Database sessions do not become muddled.
Are you saying all uploading fails on Fedora 18 i.e. Glance does not work on Fedora1 17
or that after a certain period it fails.
How many registry, glance api processes are you using and if you set debugging (sql also)
Whats in the logs?
I will be happy to help debug if I can reproduce.
From: Daniel P. Berrange [mailto:berrange at redhat.com]
Sent: 14 January 2013 14:29
To: openstack-dev at lists.openstack.org
Cc: McHale, Therese
Subject: Glance hang uploading images
Ever since this change went into Glance:
Author: Therese McHale <therese.mchale at hp.com>
Date: Thu Dec 13 13:34:19 2012 +0000
Use one wsgi app, one dbengine worker.
Return to using one wsgi application but use one database engine
per worker process.
Fixes Bug #1089916
Devstack will get stuck at uploading images into glance. Debugging shows that the glance services themselves have hung. Even after killing the devstack 'glance' client process, further calls to glance all hang, until the glance services are restarted.
I'm guessing this is not happening to everyone, otherwise this would have been fixed by now. So does anyone have any ideas why this might be happening ?
I'm using Fedora 18 and devstack setup fresh from GIT.
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