Tal Nisan has submitted this change and it was merged. Change subject: backend: introduce SyncStorageDomainsLunsCommand ...................................................................... backend: introduce SyncStorageDomainsLunsCommand This patch introduces a new command to synchronize all active block storage domains in a given data center. Previously, when synchronizing more than one storage domain (when upgrading a data center or when activating a host where the other hosts in the data center are not active), the engine used to call SyncLunsInfoForBlockStorageDomainCommand for each storage domain. The problem was that SyncLunsInfoForBlockStorageDomainCommand used to call GetVgInfoVDSCommand, so for each storage domain we did a full roundtrip to vdsm and back to the engine. With this patch, SyncStorageDomainsLunsCommand calls GetDeviceList only once, and uses that information to update all the domains in the data center. Therefore, when synchronizing n domains, the engine should do it ~ n times faster than it did before. Change-Id: I744ae190397e00856ed67b99046efd1b1bb26054 Related-To:https://bugzilla.redhat.com/1404389 Related-To:https://bugzilla.redhat.com/1455547 Related-To:https://bugzilla.redhat.com/1455548 Signed-off-by: Idan Shaby <ishaby(a)redhat.com&gt; --- A backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/storage/pool/AbstractSyncLunsCommand.java A backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/storage/pool/SyncStorageDomainsLunsCommand.java A backend/manager/modules/bll/src/test/java/org/ovirt/engine/core/bll/storage/pool/AbstractSyncLunsCommandTest.java A backend/manager/modules/bll/src/test/java/org/ovirt/engine/core/bll/storage/pool/SyncStorageDomainsLunsCommandTest.java A backend/manager/modules/common/src/main/java/org/ovirt/engine/core/common/action/SyncLunsParameters.java M backend/manager/modules/common/src/main/java/org/ovirt/engine/core/common/action/VdcActionType.java 6 files changed, 380 insertions(+), 0 deletions(-) Approvals: Jenkins CI: Passed CI tests Allon Mureinik: Looks good to me, approved Idan Shaby: Verified -- To view, visit https://gerrit.ovirt.org/78058 To unsubscribe, visit https://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: I744ae190397e00856ed67b99046efd1b1bb26054 Gerrit-PatchSet: 4 Gerrit-Project: ovirt-engine Gerrit-Branch: ovirt-engine-4.1 Gerrit-Owner: Idan Shaby <ishaby(a)redhat.com&gt; Gerrit-Reviewer: Allon Mureinik <amureini(a)redhat.com&gt; Gerrit-Reviewer: Daniel Erez <derez(a)redhat.com&gt; Gerrit-Reviewer: Idan Shaby <ishaby(a)redhat.com&gt; Gerrit-Reviewer: Jenkins CI Gerrit-Reviewer: Tal Nisan <tnisan(a)redhat.com&gt;