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From jl...@apache.org
Subject hadoop git commit: MAPREDUCE-6621. Memory Leak in JobClient#submitJobInternal(). Contributed by Xuan Gong (cherry picked from commit 43e669b22d9ac0b81ab8cc397c5d6d92bac986c6)
Date Tue, 02 Feb 2016 19:33:51 GMT
Repository: hadoop
Updated Branches:
  refs/heads/branch-2.6 cd93382a5 -> fc01ec866


MAPREDUCE-6621. Memory Leak in JobClient#submitJobInternal(). Contributed by Xuan Gong
(cherry picked from commit 43e669b22d9ac0b81ab8cc397c5d6d92bac986c6)

Conflicts:

	hadoop-mapreduce-project/CHANGES.txt


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/fc01ec86
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/fc01ec86
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/fc01ec86

Branch: refs/heads/branch-2.6
Commit: fc01ec866a2359e6225ce52b2b0c30575db35c2c
Parents: cd93382
Author: Jason Lowe <jlowe@apache.org>
Authored: Tue Feb 2 19:33:32 2016 +0000
Committer: Jason Lowe <jlowe@apache.org>
Committed: Tue Feb 2 19:33:32 2016 +0000

----------------------------------------------------------------------
 hadoop-mapreduce-project/CHANGES.txt                         | 3 +++
 .../src/main/java/org/apache/hadoop/mapred/JobClient.java    | 8 ++++++++
 2 files changed, 11 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/fc01ec86/hadoop-mapreduce-project/CHANGES.txt
----------------------------------------------------------------------
diff --git a/hadoop-mapreduce-project/CHANGES.txt b/hadoop-mapreduce-project/CHANGES.txt
index 5c7b53c..8b7fd7b 100644
--- a/hadoop-mapreduce-project/CHANGES.txt
+++ b/hadoop-mapreduce-project/CHANGES.txt
@@ -33,6 +33,9 @@ Release 2.6.4 - UNRELEASED
     MAPREDUCE-6618. YarnClientProtocolProvider leaking the YarnClient thread.
     (Xuan Gong via jlowe)
 
+    MAPREDUCE-6621. Memory Leak in JobClient#submitJobInternal() (Xuan Gong
+    via jlowe)
+
 Release 2.6.3 - 2015-12-17
 
   INCOMPATIBLE CHANGES

http://git-wip-us.apache.org/repos/asf/hadoop/blob/fc01ec86/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/JobClient.java
----------------------------------------------------------------------
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/JobClient.java
b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/JobClient.java
index fa50ecb..6e174f1 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/JobClient.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/JobClient.java
@@ -563,10 +563,18 @@ public class JobClient extends CLI {
           return job;
         }
       });
+
+      Cluster prev = cluster;
       // update our Cluster instance with the one created by Job for submission
       // (we can't pass our Cluster instance to Job, since Job wraps the config
       // instance, and the two configs would then diverge)
       cluster = job.getCluster();
+
+      // It is important to close the previous cluster instance
+      // to cleanup resources.
+      if (prev != null) {
+        prev.close();
+      }
       return new NetworkedJob(job);
     } catch (InterruptedException ie) {
       throw new IOException("interrupted", ie);


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