MAPREDUCE-6075. HistoryServerFileSystemStateStore can create zero-length files. 
Contributed by Jason Lowe


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/7f80e142
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/7f80e142
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/7f80e142

Branch: refs/heads/HDFS-6584
Commit: 7f80e142096ab21b4852635a127589e34a747bc4
Parents: 7d38ffc
Author: Jason Lowe <jl...@apache.org>
Authored: Wed Sep 10 22:10:36 2014 +0000
Committer: Jason Lowe <jl...@apache.org>
Committed: Wed Sep 10 22:22:39 2014 +0000

----------------------------------------------------------------------
 hadoop-mapreduce-project/CHANGES.txt                           | 3 +++
 .../v2/hs/HistoryServerFileSystemStateStoreService.java        | 6 ++++++
 2 files changed, 9 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/7f80e142/hadoop-mapreduce-project/CHANGES.txt
----------------------------------------------------------------------
diff --git a/hadoop-mapreduce-project/CHANGES.txt 
b/hadoop-mapreduce-project/CHANGES.txt
index a5e5920..490c0a1 100644
--- a/hadoop-mapreduce-project/CHANGES.txt
+++ b/hadoop-mapreduce-project/CHANGES.txt
@@ -276,6 +276,9 @@ Release 2.6.0 - UNRELEASED
     MAPREDUCE-6071. JobImpl#makeUberDecision doesn't log that Uber mode is
     disabled because of too much CPUs (Tsuyoshi OZAWA via jlowe)
 
+    MAPREDUCE-6075. HistoryServerFileSystemStateStore can create zero-length
+    files (jlowe)
+
 Release 2.5.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES

http://git-wip-us.apache.org/repos/asf/hadoop/blob/7f80e142/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/HistoryServerFileSystemStateStoreService.java
----------------------------------------------------------------------
diff --git 
a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/HistoryServerFileSystemStateStoreService.java
 
b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/HistoryServerFileSystemStateStoreService.java
index dcea333..9902f5e 100644
--- 
a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/HistoryServerFileSystemStateStoreService.java
+++ 
b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/HistoryServerFileSystemStateStoreService.java
@@ -189,6 +189,8 @@ public class HistoryServerFileSystemStateStoreService
     DataOutputStream dataStream = new DataOutputStream(memStream);
     try {
       key.write(dataStream);
+      dataStream.close();
+      dataStream = null;
     } finally {
       IOUtils.cleanup(LOG, dataStream);
     }
@@ -260,6 +262,8 @@ public class HistoryServerFileSystemStateStoreService
     try {
       try {
         out.write(data);
+        out.close();
+        out = null;
       } finally {
         IOUtils.cleanup(LOG, out);
       }
@@ -299,6 +303,8 @@ public class HistoryServerFileSystemStateStoreService
     try {
       tokenId.write(dataStream);
       dataStream.writeLong(renewDate);
+      dataStream.close();
+      dataStream = null;
     } finally {
       IOUtils.cleanup(LOG, dataStream);
     }

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