Public bug reported: The Hyper-V driver may leak volume connections on the source node side after performing live migrations if the volume connection info is not the same among hosts (e.g. different LUN IDs).
One of the affected backends seems to be 3PAR iSCSI, possibly some Dell iSCSI backends as well. Fibre Channel backends are not affected as the volume disconnect operation is a noop in our case. The Libvirt driver was affected by this issue as well but the initial fix only targeted the Libvirt driver. A recent commit should fix this issue for the Hyper-V driver as well, passing the right BDMs when cleaning up the volume connections on the source node side. Related bugs: * https://bugs.launchpad.net/nova/+bug/1475411 * https://bugs.launchpad.net/nova/+bug/1288039 ** Affects: nova Importance: Undecided Status: Fix Committed ** Tags: hyper-v volumes -- 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/1756077 Title: Hyper-V: leaked volume connections after live migration Status in OpenStack Compute (nova): Fix Committed Bug description: The Hyper-V driver may leak volume connections on the source node side after performing live migrations if the volume connection info is not the same among hosts (e.g. different LUN IDs). One of the affected backends seems to be 3PAR iSCSI, possibly some Dell iSCSI backends as well. Fibre Channel backends are not affected as the volume disconnect operation is a noop in our case. The Libvirt driver was affected by this issue as well but the initial fix only targeted the Libvirt driver. A recent commit should fix this issue for the Hyper-V driver as well, passing the right BDMs when cleaning up the volume connections on the source node side. Related bugs: * https://bugs.launchpad.net/nova/+bug/1475411 * https://bugs.launchpad.net/nova/+bug/1288039 To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1756077/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
