Author: hairong
Date: Thu Dec 18 16:45:27 2008
New Revision: 727869
URL: http://svn.apache.org/viewvc?rev=727869&view=rev
Log:
HADOOP-4840. TestNodeCount sometimes fails with NullPointerException.
Contributed by Hairong Kuang.
Modified:
hadoop/core/trunk/CHANGES.txt
hadoop/core/trunk/src/test/org/apache/hadoop/hdfs/server/namenode/TestNodeCount.java
Modified: hadoop/core/trunk/CHANGES.txt
URL:
http://svn.apache.org/viewvc/hadoop/core/trunk/CHANGES.txt?rev=727869&r1=727868&r2=727869&view=diff
==============================================================================
--- hadoop/core/trunk/CHANGES.txt (original)
+++ hadoop/core/trunk/CHANGES.txt Thu Dec 18 16:45:27 2008
@@ -1578,6 +1578,9 @@
HADOOP-4797. Improve how RPC server reads and writes large buffers. Avoids
soft-leak of direct buffers and excess copies in NIO layer. (Raghu Angadi)
+ HADOOP-4840. TestNodeCount sometimes fails with NullPointerException.
+ (hairong)
+
Release 0.18.2 - 2008-11-03
BUG FIXES
Modified:
hadoop/core/trunk/src/test/org/apache/hadoop/hdfs/server/namenode/TestNodeCount.java
URL:
http://svn.apache.org/viewvc/hadoop/core/trunk/src/test/org/apache/hadoop/hdfs/server/namenode/TestNodeCount.java?rev=727869&r1=727868&r2=727869&view=diff
==============================================================================
---
hadoop/core/trunk/src/test/org/apache/hadoop/hdfs/server/namenode/TestNodeCount.java
(original)
+++
hadoop/core/trunk/src/test/org/apache/hadoop/hdfs/server/namenode/TestNodeCount.java
Thu Dec 18 16:45:27 2008
@@ -61,7 +61,9 @@
// check if excessive replica is detected
NumberReplicas num = null;
do {
- num = namesystem.countNodes(block);
+ synchronized (namesystem) {
+ num = namesystem.countNodes(block);
+ }
} while (num.excessReplicas() == 0);
// find out a non-excess node
