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From GitBox <...@apache.org>
Subject [GitHub] anmolnar commented on a change in pull request #779: ZOOKEEPER-3223: Configure spotbugs - part 2
Date Mon, 21 Jan 2019 16:25:33 GMT
anmolnar commented on a change in pull request #779: ZOOKEEPER-3223: Configure spotbugs - part
2
URL: https://github.com/apache/zookeeper/pull/779#discussion_r249511617
 
 

 ##########
 File path: zookeeper-recipes/zookeeper-recipes-election/src/main/java/org/apache/zookeeper/recipes/leader/LeaderElectionSupport.java
 ##########
 @@ -180,27 +180,36 @@ private void makeOffer() throws KeeperException, InterruptedException
{
     state = State.OFFER;
     dispatchEvent(EventType.OFFER_START);
 
-    leaderOffer = new LeaderOffer();
-
-    leaderOffer.setHostName(hostName);
-    leaderOffer.setNodePath(zooKeeper.create(rootNodeName + "/" + "n_",
-        hostName.getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE,
+    LeaderOffer newLeaderOffer = new LeaderOffer();
+    byte[] hostnameBytes;
+    synchronized (this) {
+        newLeaderOffer.setHostName(hostName);
+        hostnameBytes = hostName.getBytes();
+        newLeaderOffer.setNodePath(zooKeeper.create(rootNodeName + "/" + "n_",
+        hostnameBytes, ZooDefs.Ids.OPEN_ACL_UNSAFE,
         CreateMode.EPHEMERAL_SEQUENTIAL));
-
+        leaderOffer = newLeaderOffer;
 
 Review comment:
   Do you need to synchronize the entire block or the value set would be enough?

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