Reviewed: https://review.openstack.org/168916 Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=f2a1f00829e849e78f850a73489864e57cbd86b3 Submitter: Jenkins Branch: master
commit f2a1f00829e849e78f850a73489864e57cbd86b3 Author: Maciej Szankin <[email protected]> Date: Fri Feb 26 11:18:51 2016 +0100 Live migration failure in API leaves VM in MIGRATING state When nova-api calls nova-conductor a RPC MessagingTimeout might occur. In such case we shouldn't leave VM in MIGRATING state. Possible scenarios are: * nova-conductor received message but failed to respond, no additional exceptions raised - live migration will start, VM will be moved to destination host * nova-conductor received message but failed to respond, additional exception raised (e.g., LibvirtError) - LM will not start * nova-api couldn't reach nova-conductor - LM will not start Because we can't predict in API layer what happened below, this patch writes instance fault to database when MessagingTimeout is caught. Co-Authored-By: Pawel Koniszewski <[email protected]> Bartosz Fic <[email protected]> Closes-Bug: #1276214 Change-Id: Id800e925fbb689d20e7907b698b67c92fd3da979 ** Changed in: nova Status: In Progress => Fix Released -- 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/1276214 Title: Live migration failure in API doesn't revert task_state to None Status in OpenStack Compute (nova): Fix Released Bug description: If API times out on a RPC during the processing of a migrate_server it does not revert the task_state back to NULL before or after sending the error response back to the user. This can prevent further API operations on the VM and leave a good VMs in non-operable state with the exception of perhaps a delete. This is one possible reproducer. I'm not sure if this is always true, and I'd appreciate if someone else confirm it. 1. Somehow make RPC requests hang 2. Issue a live migration request 3. The call should return an HTTP error (409 perhaps) 4. Check VM. It should be in a good state but the task_state stuck in 'migrating' To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1276214/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
