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Posted to common-commits@hadoop.apache.org by ji...@apache.org on 2011/12/01 02:13:43 UTC

svn commit: r1208926 - in /hadoop/common/trunk/hadoop-common-project/hadoop-common: CHANGES.txt src/main/java/org/apache/hadoop/security/UserGroupInformation.java

Author: jitendra
Date: Thu Dec  1 01:13:42 2011
New Revision: 1208926

URL: http://svn.apache.org/viewvc?rev=1208926&view=rev
Log:
HADOOP-7854. UGI getCurrentUser is not synchronized. Contributed by Daryn Sharp.

Modified:
    hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
    hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java

Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt?rev=1208926&r1=1208925&r2=1208926&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt (original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt Thu Dec  1 01:13:42 2011
@@ -150,6 +150,8 @@ Release 0.23.1 - Unreleased
    HADOOP-7864. Building mvn site with Maven < 3.0.2 causes OOM errors.
    (Andrew Bayer via eli)
 
+   HADOOP-7854. UGI getCurrentUser is not synchronized. (Daryn Sharp via jitendra)
+
 Release 0.23.0 - 2011-11-01 
 
   INCOMPATIBLE CHANGES

Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java?rev=1208926&r1=1208925&r2=1208926&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java (original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java Thu Dec  1 01:13:42 2011
@@ -449,7 +449,8 @@ public class UserGroupInformation {
    * @return the current user
    * @throws IOException if login fails
    */
-  public static UserGroupInformation getCurrentUser() throws IOException {
+  public synchronized
+  static UserGroupInformation getCurrentUser() throws IOException {
     AccessControlContext context = AccessController.getContext();
     Subject subject = Subject.getSubject(context);
     if (subject == null || subject.getPrincipals(User.class).isEmpty()) {