MAPREDUCE-3057. Job History Server goes of OutOfMemory with 1200 Jobs and Heap Size set to 10 GB. (Eric Payne via mahadev)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1183545 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -1623,6 +1623,9 @@ Release 0.23.0 - Unreleased
     MAPREDUCE-3124. Fixed location of native libs i.e. libhadoop.so for
     containers. (John George via acmurthy) 
 
+    MAPREDUCE-3057. Job History Server goes of OutOfMemory with 1200 Jobs 
+    and Heap Size set to 10 GB. (Eric Payne via mahadev)
+
 Release 0.22.0 - Unreleased
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/JobHistory.java

@@ -71,7 +71,7 @@ import org.apache.hadoop.yarn.service.AbstractService;
 public class JobHistory extends AbstractService implements HistoryContext   {
 
   private static final int DEFAULT_JOBLIST_CACHE_SIZE = 20000;
-  private static final int DEFAULT_LOADEDJOB_CACHE_SIZE = 2000;
+  private static final int DEFAULT_LOADEDJOB_CACHE_SIZE = 5;
   private static final int DEFAULT_DATESTRING_CACHE_SIZE = 200000;
   private static final long DEFAULT_MOVE_THREAD_INTERVAL = 3 * 60 * 1000l; //3 minutes
   private static final int DEFAULT_MOVE_THREAD_COUNT = 3;