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From st...@apache.org
Subject svn commit: r1102416 - in /hbase/trunk: CHANGES.txt src/main/java/org/apache/hadoop/hbase/client/HConnectionManager.java
Date Thu, 12 May 2011 18:47:07 GMT
Author: stack
Date: Thu May 12 18:47:06 2011
New Revision: 1102416

URL: http://svn.apache.org/viewvc?rev=1102416&view=rev
Log:
HBASE-3878 Hbase client throws NoSuchElementException

Modified:
    hbase/trunk/CHANGES.txt
    hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/HConnectionManager.java

Modified: hbase/trunk/CHANGES.txt
URL: http://svn.apache.org/viewvc/hbase/trunk/CHANGES.txt?rev=1102416&r1=1102415&r2=1102416&view=diff
==============================================================================
--- hbase/trunk/CHANGES.txt (original)
+++ hbase/trunk/CHANGES.txt Thu May 12 18:47:06 2011
@@ -251,6 +251,11 @@ Release 0.91.0 - Unreleased
    HBASE-3839  Add monitoring of currently running tasks to the master and
                RS web UIs
 
+Release 0.90.4 - Unreleased
+
+  BUG FIXES
+   HBASE-3878  Hbase client throws NoSuchElementException (Ted Yu)
+
 Release 0.90.3 - Unreleased
 
   BUG FIXES

Modified: hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/HConnectionManager.java
URL: http://svn.apache.org/viewvc/hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/HConnectionManager.java?rev=1102416&r1=1102415&r2=1102416&view=diff
==============================================================================
--- hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/HConnectionManager.java (original)
+++ hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/HConnectionManager.java Thu May
12 18:47:06 2011
@@ -30,6 +30,7 @@ import java.util.HashSet;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.NoSuchElementException;
 import java.util.Map.Entry;
 import java.util.Set;
 import java.util.TreeMap;
@@ -1059,8 +1060,12 @@ public class HConnectionManager {
       // we need to examine the cached location to verify that it is
       // a match by end key as well.
       if (!matchingRegions.isEmpty()) {
-        HRegionLocation possibleRegion =
-          matchingRegions.get(matchingRegions.lastKey());
+        HRegionLocation possibleRegion = null;
+        try {
+          possibleRegion = matchingRegions.get(matchingRegions.lastKey());          
+        } catch (NoSuchElementException nsee) {
+          LOG.warn("checkReferences() might have removed the key", nsee);
+        }
 
         // there is a possibility that the reference was garbage collected
         // in the instant since we checked isEmpty().



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