VMware cluster driver does not favor shared datastores over unshared ones

Bug #1216209 reported by Vui Lam on 2013-08-24
This bug affects 1 person
Affects Status Importance Assigned to Milestone
OpenStack Compute (nova)

Bug Description

For a cluster, especially one that is managed by DRS, placing a new VM on a datastore accessible to the largest number of the cluster's hosts enables capabilities like vMotion, increases resource management flexibility by DRS; whereas placing it in a datastore that is local only to one host has the opposite effect, as it essentially pins the VM to that one host. Hence the driver should by default favor datastores that are more accessible to the cluster's hosts over those that are not. Having this behavior will likely reduce the number of situations when the datastore_regex has to be configured by the administrator to specify allowed datastores. In the degenerate case where there is only one host in the cluster, a local datastore can still be picked for placement.

Vui Lam (vui) on 2013-08-24
Changed in nova:
assignee: nobody → Vui Lam (vui)
summary: - VMware cluster driver does not favor shared over unshared datastores
+ VMware cluster driver does not favor shared datastores over unshared
+ ones
description: updated
Gary Kotton (garyk) on 2013-08-27
Changed in nova:
status: New → Confirmed
Vui Lam (vui) on 2013-08-27
Changed in nova:
importance: Undecided → High
tags: added: havana-backport-potential
Changed in nova:
milestone: none → icehouse-1
Vui Lam (vui) on 2013-11-15
Changed in nova:
assignee: Vui Lam (vui) → Radoslav Gerganov (rgerganov)
Changed in nova:
milestone: icehouse-1 → icehouse-2

Fix proposed to branch: master
Review: https://review.openstack.org/60010

Changed in nova:
status: Confirmed → In Progress
Andrew Laski (alaski) on 2013-12-11
Changed in nova:
importance: High → Medium
Thierry Carrez (ttx) on 2014-01-22
Changed in nova:
milestone: icehouse-2 → icehouse-3
Thierry Carrez (ttx) on 2014-03-05
Changed in nova:
milestone: icehouse-3 → icehouse-rc1
Tracy Jones (tjones-i) on 2014-03-07
Changed in nova:
milestone: icehouse-rc1 → next
tags: added: icehouse-rc-potential
Tracy Jones (tjones-i) on 2014-03-20
tags: removed: havana-backport-potential icehouse-rc-potential
Tracy Jones (tjones-i) wrote :

all reviews are abandoned for this and it has not been updated in a long time. moving back to triaged. Please set to in progress if you plan on working on it

Changed in nova:
status: In Progress → Triaged
Tracy Jones (tjones-i) on 2014-07-29
Changed in nova:
status: Triaged → Confirmed
Changed in nova:
assignee: Radoslav Gerganov (rgerganov) → nobody
Tracy Jones (tjones-i) on 2016-03-07
Changed in nova:
assignee: nobody → Tracy Jones (tjones-i)
Changed in nova:
status: Confirmed → In Progress

Change abandoned by Sean Dague (<email address hidden>) on branch: master
Review: https://review.openstack.org/289631
Reason: This review is > 6 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

Sujitha (sujitha-neti) wrote :

The patch submitted for this bug is abandoned and there is no progress since a long time. To signal that to other contributors which might provide patches for this bug, I'm removing the assignee. Please assign to yourself if you plan to work on it.

Changed in nova:
assignee: Tracy Jones (tjones-i) → nobody
status: In Progress → Confirmed
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