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https://issues.apache.org/jira/browse/HBASE-3388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12974374#action_12974374
]
stack commented on HBASE-3388:
------------------------------
Here's patch:
{code}
diff --git
a/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
b/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
index ea064f2..2b345fb 100644
--- a/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
+++ b/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
@@ -261,8 +261,13 @@ public class AssignmentManager extends ZooKeeperListener {
throws KeeperException, IOException {
RegionTransitionData data = ZKAssign.getData(watcher, encodedRegionName);
if (data == null) return false;
- HRegionInfo hri = (regionInfo != null)? regionInfo:
- MetaReader.getRegion(catalogTracker, data.getRegionName()).getFirst();
+ HRegionInfo hri = regionInfo;
+ if (hri == null) {
+ Pair<HRegionInfo, HServerAddress> p =
+ MetaReader.getRegion(catalogTracker, data.getRegionName());
+ if (p == null) return false;
+ hri = p.getFirst();
+ }
processRegionsInTransition(data, hri);
return true;
}
{code}
> NPE processRegionInTransition(AssignmentManager.java:264) doing
> rolling-restart.sh
> ----------------------------------------------------------------------------------
>
> Key: HBASE-3388
> URL: https://issues.apache.org/jira/browse/HBASE-3388
> Project: HBase
> Issue Type: Bug
> Reporter: stack
> Fix For: 0.90.0
>
>
> Trying to run rolling-restart got this:
> {code}
> 2010-12-22 20:16:48,579 FATAL org.apache.hadoop.hbase.master.HMaster:
> Unhandled exception. Starting shutdown.
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.master.AssignmentManager.processRegionInTransition(AssignmentManager.java:264)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.processFailover(AssignmentManager.java:223)
> at
> org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:395)
> at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:277)
> 2010-12-22 20:16:48,581 INFO org.apache.hadoop.hbase.master.HMaster: Aborting
> 2010-12-22 20:16:48,581 DEBUG org.apache.hadoop.hbase.master.HMaster:
> Stopping service threads
> {code}
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