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HADOOP 9871. Fix intermittent findbugs warnings in DefaultMetricsSystem. (Junping Du via llu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1514024 13f79535-47bb-0310-9956-ffa450edef68
Luke Lu 11 роки тому
батько
коміт
6390e64abd

+ 3 - 0
hadoop-common-project/hadoop-common/CHANGES.txt

@@ -293,6 +293,9 @@ Release 2.3.0 - UNRELEASED
 
   IMPROVEMENTS
 
+    HADOOP 9871. Fix intermittent findbugs warnings in DefaultMetricsSystem.
+    (Junping Du via llu)
+
     HADOOP-9319. Update bundled LZ4 source to r99. (Binglin Chang via llu)
 
     HADOOP-9241. DU refresh interval is not configurable (harsh)

+ 2 - 2
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/lib/DefaultMetricsSystem.java

@@ -46,8 +46,8 @@ public enum DefaultMetricsSystem {
   @VisibleForTesting
   volatile boolean miniClusterMode = false;
   
-  final UniqueNames mBeanNames = new UniqueNames();
-  final UniqueNames sourceNames = new UniqueNames();
+  transient final UniqueNames mBeanNames = new UniqueNames();
+  transient final UniqueNames sourceNames = new UniqueNames();
 
   /**
    * Convenience method to initialize the metrics system