Dear all Hi my name is Saki Iwata I'm working on this bug fix. https://bugs.launchpad.net/nova/+bug/1239952 https://review.openstack.org/#/c/86213/ This patch change response code from 400 to 503. This patch got many reviewed but we can't make a decision. To put it simply, which code (500 or 503) should it return? Which is better do you think? I would like to hear your opinion. opinion of reviewer - recommend return 500 -- GlanceConnectionFailed is returning a generic 500 -- 503 would be appropriate if Nova was unavailable but Cinder being unavailable would be a 500 from a Nova point of view. - recommend return 503 -- This exceptions is handled in the FaultWrapper middleware - my opinion -- I think should return 503. 500 should be used when a cause is not known. In this patch, cinder down cause of the exception. Sincerely, Saki Iwata -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20140502/bc4782aa/attachment.html>