Change in ovirt-engine[ovirt-engine-3.6]: core: Cluster update updates VMs only if necessary

[tnisan at redhat.com]

Tal Nisan has submitted this change and it was merged.

Change subject: core: Cluster update updates VMs only if necessary
......................................................................


core: Cluster update updates VMs only if necessary

i.e. if cluster compatibility version has changed.

This patch is supposed to decrease of probability of DB deadlocks caused
by concurrent updates of VM devices by limiting calls of
UpdateVmCommand.

This is a lightweight backport of https://gerrit.ovirt.org/#/c/60995
intended to be 3.6 only.

Change-Id: I072a7d2104f91e93ca0460c4b658fb4dfb8d3ced
Bug-Url: https://bugzilla.redhat.com/1349526
Bug-Url: https://bugzilla.redhat.com/1366786
Signed-off-by: Jakub Niedermertl <jniederm at redhat.com>
---
M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/UpdateVdsGroupCommand.java
1 file changed, 6 insertions(+), 0 deletions(-)

Approvals:
  Jakub Niedermertl: Verified
  Jenkins CI: Passed CI tests
  Arik Hadas: Looks good to me, approved



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Gerrit-MessageType: merged
Gerrit-Change-Id: I072a7d2104f91e93ca0460c4b658fb4dfb8d3ced
Gerrit-PatchSet: 2
Gerrit-Project: ovirt-engine
Gerrit-Branch: ovirt-engine-3.6
Gerrit-Owner: Jakub Niedermertl <jniederm at redhat.com>
Gerrit-Reviewer: Arik Hadas <ahadas at redhat.com>
Gerrit-Reviewer: Jakub Niedermertl <jniederm at redhat.com>
Gerrit-Reviewer: Jenkins CI
Gerrit-Reviewer: Tal Nisan <tnisan at redhat.com>
Gerrit-Reviewer: Tomas Jelinek <tjelinek at redhat.com>
Gerrit-Reviewer: gerrit-hooks <automation at ovirt.org>