MAPREDUCE-3438. TestRaidNode fails because of "Too many open files". Contributed by Ramkumar Vadali.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.22@1207722 13f79535-47bb-0310-9956-ffa450edef68

mapreduce/CHANGES.txt

@@ -644,6 +644,9 @@ Release 0.22.0 - Unreleased
     MAPREDUCE-2059. RecoveryManager excludes jobtracker.info from the list of
     jobs to be recovered. (Subroto Sanyal via shv)
 
+    MAPREDUCE-3438. TestRaidNode fails because of "Too many open files".
+    (Ramkumar Vadali via shv)
+
 Release 0.21.1 - Unreleased
 
   NEW FEATURES

mapreduce/src/contrib/raid/src/test/org/apache/hadoop/raid/TestRaidNode.java

@@ -250,15 +250,20 @@ public class TestRaidNode extends TestCase {
     int  numBlock          = 11;
     int  iter = 0;
 
-    createClusters(true);
-    try {
-      for (long blockSize : blockSizes) {
-        for (long stripeLength : stripeLengths) {
+    for (long blockSize : blockSizes) {
+      for (long stripeLength : stripeLengths) {
+        createClusters(true);
+        try {
            doTestPathFilter(iter, targetReplication, metaReplication,
                                               stripeLength, blockSize, numBlock);
            iter++;
+        } finally {
+          stopClusters();
         }
       }
+    }
+    createClusters(true);
+    try {
       doCheckPolicy();
     } finally {
       stopClusters();