Yair Zaslavsky has posted comments on this change.

Change subject: core: Prevent dead lock on vm device (#852451)
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Patch Set 3: (3 inline comments)

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File backend/manager/dbscripts/vm_device_sp.sql
Line 72:            _update_date = current_timestamp
Line 73:     WHERE  device_id = v_device_id and vm_id = v_vm_id;
Line 74: END; $procedure$
Line 75: LANGUAGE plpgsql;
Line 76: 
See comment on VdsUpdateRuntimeInfo - indeed, it should be used there.
Line 77: Create or replace FUNCTION UpdateVmDeviceRuntimeInfo(
Line 78:     v_device_id UUID,
Line 79:     v_vm_id UUID,
Line 80:     v_address varchar(255),


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File 
backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/VdsUpdateRunTimeInfo.java
Line 156:         saveVmDevicesToDb();
Line 157:     }
Line 158: 
Line 159:     private void saveVmDevicesToDb() {
Line 160:         updateAllInTransaction(vmDeviceToSave.values(), 
getDbFacade().getVmDeviceDAO());
Correct, the order is not kept as map does not keep an order.
Line 161: 
Line 162:         if (!removedDeviceIds.isEmpty()) {
Line 163:             
TransactionSupport.executeInScope(TransactionScopeOption.Required,
Line 164:                     new TransactionMethod<Void>() {


Line 211:      *            The entities to update.
Line 212:      * @param dao
Line 213:      *            The DAO used for updating.
Line 214:      */
Line 215: 
Yes, and it joins your comment on your stored procedures (i.e - where the 
stored procedure is used - this is where it should be used).
Line 216:     private static <T extends BusinessEntity<?>> void 
updateAllInTransaction
Line 217:         (final String procedureName, final Collection<T> entities, 
final MassOperationsDao<T> dao) {
Line 218:     if (!entities.isEmpty()) {
Line 219:         
TransactionSupport.executeInScope(TransactionScopeOption.Required,


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Gerrit-MessageType: comment
Gerrit-Change-Id: If316259f9760777c5f85db0880a157021c61a6ba
Gerrit-PatchSet: 3
Gerrit-Project: ovirt-engine
Gerrit-Branch: master
Gerrit-Owner: Yair Zaslavsky <yzasl...@redhat.com>
Gerrit-Reviewer: Barak Azulay <bazu...@redhat.com>
Gerrit-Reviewer: Eli Mesika <emes...@redhat.com>
Gerrit-Reviewer: Michael Kublin <mkub...@redhat.com>
Gerrit-Reviewer: Yair Zaslavsky <yzasl...@redhat.com>
Gerrit-Reviewer: oVirt Jenkins CI Server
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