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Posted to issues@hbase.apache.org by GitBox <gi...@apache.org> on 2019/11/11 18:04:34 UTC

[GitHub] [hbase] apurtell commented on a change in pull request #809: HBASE-23261 : Processing ZK BadVersionException during node transition

apurtell commented on a change in pull request #809: HBASE-23261 : Processing ZK BadVersionException during node transition
URL: https://github.com/apache/hbase/pull/809#discussion_r344836708
 
 

 ##########
 File path: hbase-server/src/main/java/org/apache/hadoop/hbase/coordination/ZKSplitTransactionCoordination.java
 ##########
 @@ -222,9 +229,21 @@ public void completeSplitTransaction(final RegionServerServices services, Region
     // Tell master about split by updating zk. If we fail, abort.
     if (coordinationManager.getServer() != null) {
       try {
-        zstd.setZnodeVersion(transitionSplittingNode(parent.getRegionInfo(), a.getRegionInfo(),
-          b.getRegionInfo(), coordinationManager.getServer().getServerName(), zstd,
-          RS_ZK_REGION_SPLITTING, RS_ZK_REGION_SPLIT));
+        int newNodeVersion = -1;
+        for (int i = 0; i < SPLIT_WAIT_TIMEOUT; i++) {
+          newNodeVersion = transitionSplittingNode(parent.getRegionInfo(), a.getRegionInfo(),
+            b.getRegionInfo(), coordinationManager.getServer().getServerName(), zstd,
+            RS_ZK_REGION_SPLITTING, RS_ZK_REGION_SPLIT);
+          if (newNodeVersion != -1) {
+            break;
+          }
+          Thread.sleep(100);
+        }
+        if (newNodeVersion == -1) {
 
 Review comment:
   Throwing an exception here before blindly calling setZnodeVersion is definitely an improvement. 

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