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(a)redhat.com&gt; --- 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 -- To view, visit https://gerrit.ovirt.org/62392 To unsubscribe, visit https://gerrit.ovirt.org/settings 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(a)redhat.com&gt; Gerrit-Reviewer: Arik Hadas <ahadas(a)redhat.com&gt; Gerrit-Reviewer: Jakub Niedermertl <jniederm(a)redhat.com&gt; Gerrit-Reviewer: Jenkins CI Gerrit-Reviewer: Tal Nisan <tnisan(a)redhat.com&gt; Gerrit-Reviewer: Tomas Jelinek <tjelinek(a)redhat.com&gt; Gerrit-Reviewer: gerrit-hooks <automation(a)ovirt.org&gt;