Omer Frenkel has submitted this change and it was merged. Change subject: core: lock vm name for the whole vm import operation ...................................................................... core: lock vm name for the whole vm import operation The name of the VM is being locked when importing VM, since we want to prevent creation of another vm with the same name in parallel. the lock for the VM name was taken until we were adding the VM to the DB, since once it is in the DB, every command that creates VM can find whether VM with such name already exists or not by checking the DB, so the lock is no longer required. The granularity of the locks scope definition is per class, which means that either all the acquired locks are released at the end of the execute method or all of them remains until the whole execution of the command ends. Since we need to add locks which remain for the whole execution in ImportVmCommand, we need the VM name lock to remain for the whole execution as well. This patch changes the scope of the VM name lock that is taken as part of the import vm operation to be for the whole execution. The message which is attached to the log is also changed to reflect the error better (so from the user's perspective, it makes no difference whether other commands fail because of the lock in memory or due to detection that there is already another VM with the same name in the DB). Change-Id: I8e04a40f46389da77b67b997931377d8e1193935 Bug-Url: https://bugzilla.redhat.com/733917 Signed-off-by: Arik Hadas <ahadas(a)redhat.com&gt; --- M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/ImportVmCommand.java 1 file changed, 2 insertions(+), 3 deletions(-) Approvals: Omer Frenkel: Verified; Looks good to me, approved -- To view, visit http://gerrit.ovirt.org/16954 To unsubscribe, visit http://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: I8e04a40f46389da77b67b997931377d8e1193935 Gerrit-PatchSet: 4 Gerrit-Project: ovirt-engine Gerrit-Branch: master Gerrit-Owner: Arik Hadas <ahadas(a)redhat.com&gt; Gerrit-Reviewer: Arik Hadas <ahadas(a)redhat.com&gt; Gerrit-Reviewer: Omer Frenkel <ofrenkel(a)redhat.com&gt; Gerrit-Reviewer: oVirt Jenkins CI Server