** No longer affects: nova/pike -- 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/1747650
Title: Make bdms querying in multiple cells use scatter-gather Status in OpenStack Compute (nova): Fix Released Status in OpenStack Compute (nova) queens series: Fix Committed Bug description: Currently the "_get_instance_bdms_in_multiple_cells" function in extended_volumes runs sequentially and this affects the performance in case of large deployments (running a lot of cells) : https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/extended_volumes.py#L50 So it would be nice to use the scatter_gather_cells function to do this operation in parallel. Also apart from the performance scaling point of view, in case connection to a particular cell fails, it would be nice to have sentinels returned which is done by the scatter_gather_cells function. This helps when a cell is down. To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1747650/+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
