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HADOOP-9964. Fix deadlocks in TestHttpServer by synchronize ReflectionUtils.printThreadInfo. (Junping Du via llu) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1527651 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Luke Lu 2013-09-30 17:01:51 +00:00
parent e26ac59ca0
commit 4ff49a7516
2 changed files with 4 additions and 1 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -61,6 +61,9 @@ Release 2.3.0 - UNRELEASED
BUG FIXES BUG FIXES
HADOOP-9964. Fix deadlocks in TestHttpServer by synchronize
ReflectionUtils.printThreadInfo. (Junping Du via llu)
HADOOP-9582. Non-existent file to "hadoop fs -conf" doesn't throw error HADOOP-9582. Non-existent file to "hadoop fs -conf" doesn't throw error
(Ashwin Shankar via jlowe) (Ashwin Shankar via jlowe)

2
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/ReflectionUtils.java
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@ -154,7 +154,7 @@ public class ReflectionUtils {
* @param stream the stream to * @param stream the stream to
* @param title a string title for the stack trace * @param title a string title for the stack trace
*/ */
public static void printThreadInfo(PrintWriter stream, public synchronized static void printThreadInfo(PrintWriter stream,
String title) { String title) {
final int STACK_DEPTH = 20; final int STACK_DEPTH = 20;
boolean contention = threadBean.isThreadContentionMonitoringEnabled(); boolean contention = threadBean.isThreadContentionMonitoringEnabled();