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Subject [GitHub] marcaurele commented on a change in pull request #2373: CLOUDSTACK-10202:createSnapshotPolicy API create multiple entries in DB for same volume.
Date Thu, 01 Jan 1970 00:00:00 GMT
marcaurele commented on a change in pull request #2373: CLOUDSTACK-10202:createSnapshotPolicy
API create multiple entries in DB for same volume.
URL: https://github.com/apache/cloudstack/pull/2373#discussion_r158706858
 
 

 ##########
 File path: server/src/com/cloud/storage/snapshot/SnapshotManagerImpl.java
 ##########
 @@ -854,15 +856,18 @@ public SnapshotPolicyVO createPolicy(CreateSnapshotPolicyCmd cmd, Account
policy
                 throw new InvalidParameterValueException("Max number of snapshots shouldn't
exceed the " + message + " level snapshot limit");
             }
         }
-        SnapshotPolicyVO policy = _snapshotPolicyDao.findOneByVolumeInterval(volumeId, intvType);
-        if (policy == null) {
-            policy = new SnapshotPolicyVO(volumeId, cmd.getSchedule(), timezoneId, intvType,
cmd.getMaxSnaps(), display);
-            policy = _snapshotPolicyDao.persist(policy);
-            _snapSchedMgr.scheduleNextSnapshotJob(policy);
-        } else {
-            try {
+
+        final GlobalLock createSnapshotPolicyLock = GlobalLock.getInternLock("createSnapshotPolicy_"
+ volumeId);
+        createSnapshotPolicyLock.lock(5);
 
 Review comment:
   If the lock is not acquired you have to stop processing the request and return a failure
to the user. Look at other part of the code using that lock mechanism.

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