Cinder

Remove additional metadata that tracks the instance ID on the 3PAR backends

Bug #1572665 reported by Kurt Martin on 2016-04-20

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	Cinder	Fix Released	Low	Kurt Martin	Cinder newton-1 "n1"

Bug Description

HPE added some additional tracking of the instanced ID metadata on the 3PAR storage arrays back in Icehouse. When a volume was attached the instance ID was stored on the 3PAR and removed on detach, initially this this was over SSH and moved to REST calls due to performance issues. Many customers still have issues with this unused feature on upgrades and under heavy load.

The tracking of the instance ID is no longer required by HPE and has no affect on any of the Cinder functionality. This unused feature will also be a problem when multi-attach lands.

See original description

Tags:

Kurt Martin (kurt-f-martin) on 2016-04-20

Changed in cinder:
assignee:	nobody → Kurt Martin (kurt-f-martin)
tags:	added: 3par driver

Walt Boring (walter-boring) on 2016-04-20

Changed in cinder:
importance:	Undecided → Low
milestone:	none → newton-1

Kurt Martin (kurt-f-martin) on 2016-04-20

description:

updated

Revision history for this message

OpenStack Infra (hudson-openstack) wrote on 2016-04-20: Fix proposed to cinder (master)

Fix proposed to branch: master
Review: https://review.openstack.org/308518

Changed in cinder:
status:	New → In Progress

Revision history for this message

OpenStack Infra (hudson-openstack) wrote on 2016-04-22: Fix merged to cinder (master)

Reviewed: https://review.openstack.org/308518
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=960ce5a475a203d904aed502c8e5cc27d7808b3f
Submitter: Jenkins
Branch: master

commit 960ce5a475a203d904aed502c8e5cc27d7808b3f
Author: Kurt Martin <email address hidden>
Date: Wed Apr 20 11:21:31 2016 -0700

3PAR: Remove metadata that tracks the instance id

    HPE added some additional tracking of the instanced ID metadata on the
    3PAR storage arrays back in Icehouse. When a volume was attached, the
    instance ID was stored on the 3PAR and removed on detach.
    Initially this this was over SSH and moved to REST calls due to
    performance issues. Many customers still have issues with this unused
    feature on upgrades and under heavy load.

    The tracking of the instance ID is no longer required by HPE and has no
    affect on any of the Cinder functionality. This unused feature will also
    be a problem when multi-attach lands, so it's being removed by this
    patch.

Change-Id: Ic181e6598f37a727b41c093e0c09abe229183d6f
Closes-Bug: #1572665