Shireesh Anjal has submitted this change and it was merged. Change subject: gluster: GlusterMultipleActionRunner ...................................................................... gluster: GlusterMultipleActionRunner Gluster commands always acquire a lock on the cluster. This means that if user selects multiple objects belonging to the same cluster and performs an action on them, all of them try to acquire a lock on the same cluster. The logic in MultipleActionsRunner is such that canDoActionOnly() is called for all actions first, before trying to execute them. This can result in a deadlock as the second action will get blocked trying to acquire lock on the same cluster, and executeAction() will never be invoked on first action because of this. This is seems like a gluster-specific scenario for now, hence introducing GlusterMultipleActionsRunner that extends from MultipleActionsRunner and alters the behavior as follows: - Releases the lock after invoking CanDoActionOnly - Re-acquires the lock invoking executing executeAction Also, MultipleActionsRunnersFactory is enhanced to create and return object of GlusterMultipleActionsRunner for gluster related actions. Change-Id: I0e3dc1fa0b21ab6e0fcaff518bf9696f6c9796ca Signed-off-by: Shireesh Anjal <sanjal(a)redhat.com&gt; --- A backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/GlusterMultipleActionsRunner.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/MultipleActionsRunner.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/MultipleActionsRunnersFactory.java 3 files changed, 126 insertions(+), 35 deletions(-) Approvals: Shireesh Anjal: Verified; Looks good to me, approved -- To view, visit http://gerrit.ovirt.org/10812 To unsubscribe, visit http://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: I0e3dc1fa0b21ab6e0fcaff518bf9696f6c9796ca Gerrit-PatchSet: 4 Gerrit-Project: ovirt-engine Gerrit-Branch: master Gerrit-Owner: Shireesh Anjal <sanjal(a)redhat.com&gt; Gerrit-Reviewer: Michael Kublin <mkublin(a)redhat.com&gt; Gerrit-Reviewer: Omer Frenkel <ofrenkel(a)redhat.com&gt; Gerrit-Reviewer: Shireesh Anjal <sanjal(a)redhat.com&gt; Gerrit-Reviewer: Yair Zaslavsky <yzaslavs(a)redhat.com&gt;