Eli Mesika has submitted this change and it was merged. Change subject: core: After enable concurrent option under host... ...................................................................... core: After enable concurrent option under host... After enable concurrent option under host power management fencing begin failed This bug was probably caused by a race:

From the logs its seems that a NULL proxy host is attempt to be used.

There is a check for a valid proxy in canDoAction but not all the execution paths checks for proxy Checking for proxy should be also in execute for single/dual[sequential,concurrent] and the flag that indicates if the operation succeeded should be set accordingly Change-Id: I139a7de9a4bb24a56523073b800b929a31fcdc6a Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=977689 Signed-off-by: Eli Mesika <emesika@redhat.com> --- M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/FenceVdsBaseCommand.java 1 file changed, 72 insertions(+), 58 deletions(-) Approvals: Eli Mesika: Verified; Looks good to me, approved -- To view, visit http://gerrit.ovirt.org/17206 To unsubscribe, visit http://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: I139a7de9a4bb24a56523073b800b929a31fcdc6a Gerrit-PatchSet: 2 Gerrit-Project: ovirt-engine Gerrit-Branch: master Gerrit-Owner: Eli Mesika <emesika@redhat.com> Gerrit-Reviewer: Eli Mesika <emesika@redhat.com> Gerrit-Reviewer: Yair Zaslavsky <yzaslavs@redhat.com> Gerrit-Reviewer: oVirt Jenkins CI Server