NetApp cinder driver reports 0 free space for the first 60 seconds

[Ben Swartzlander]

The NetApp driver (in clustered mode) collects free space in an asynchronous background job, which results in the free space being reported as 0 until the job has run at least once (takes 60 seconds). The driver should be changed to report the correct free space immediately upon starting up.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/57898

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/57898
Committed: http://github.com/openstack/cinder/commit/585f34ff7798ad271121d432e0cae8820bc54389
Submitter: Jenkins
Branch: master

commit 585f34ff7798ad271121d432e0cae8820bc54389
Author: Navneet Singh <email address hidden>
Date: Mon Nov 18 02:38:07 2013 +0530

    NetApp fix free space as zero during 1st vol stats update

    NetApp clustered ontap drivers report space as zero
    till first 60 seconds of driver start. This is causing
    discomfort for some performance sensitive deployements.
    This was due to async nature of the NetApp stats collection job.
    Job is changed to sync at driver start to improve customer
    experience.

    Change-Id: I7d5cbf590897a0d328ece3a60516c92c0ad0ee7f
    Closes-bug: #1253660

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/havana
Review: https://review.openstack.org/58193

[Huang Zhiteng (zhiteng-huang)]

Maybe also backport the fix to Grizzly?

[Navneet (singn)]

No, its only eligible for Havana as we made the relevant changes in Havana.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/58193
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=c07d60fe456484b45cff543cfd08391b0e3ba9f2
Submitter: Jenkins
Branch: stable/havana

commit c07d60fe456484b45cff543cfd08391b0e3ba9f2
Author: Navneet Singh <email address hidden>
Date: Mon Nov 18 02:38:07 2013 +0530

    NetApp fix free space as zero during 1st vol stats update

    NetApp clustered ontap drivers report space as zero
    till first 60 seconds of driver start. This is causing
    discomfort for some performance sensitive deployements.
    This was due to async nature of the NetApp stats collection job.
    Job is changed to sync at driver start to improve customer
    experience.

    Change-Id: I7d5cbf590897a0d328ece3a60516c92c0ad0ee7f
    Closes-bug: #1253660
    (cherry picked from commit 585f34ff7798ad271121d432e0cae8820bc54389)