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Posted to yarn-commits@hadoop.apache.org by to...@apache.org on 2013/01/03 16:07:22 UTC

svn commit: r1428387 - in /hadoop/common/trunk/hadoop-yarn-project: CHANGES.txt hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java

Author: tomwhite
Date: Thu Jan  3 15:07:22 2013
New Revision: 1428387

URL: http://svn.apache.org/viewvc?rev=1428387&view=rev
Log:
YARN-300. After YARN-271, fair scheduler can infinite loop and not schedule any application. Contributed by Sandy Ryza.

Modified:
    hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
    hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java

Modified: hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt?rev=1428387&r1=1428386&r2=1428387&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt (original)
+++ hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt Thu Jan  3 15:07:22 2013
@@ -161,6 +161,9 @@ Release 2.0.3-alpha - Unreleased 
     YARN-288. Fair scheduler queue doesn't accept any jobs when ACLs are
     configured. (Sandy Ryza via tomwhite)
 
+    YARN-300. After YARN-271, fair scheduler can infinite loop and not
+    schedule any application. (Sandy Ryza via tomwhite)
+
 Release 2.0.2-alpha - 2012-09-07 
 
   INCOMPATIBLE CHANGES

Modified: hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java?rev=1428387&r1=1428386&r2=1428387&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java (original)
+++ hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java Thu Jan  3 15:07:22 2013
@@ -760,7 +760,7 @@ public class FairScheduler implements Re
     // Otherwise, schedule at queue which is furthest below fair share
     else {
       int assignedContainers = 0;
-      while (true) {
+      while (node.getReservedContainer() == null) {
         // At most one task is scheduled each iteration of this loop
         List<FSLeafQueue> scheds = new ArrayList<FSLeafQueue>(
             queueMgr.getLeafQueues());