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Merge -r 1428386:1428387 from trunk to branch-2. Fixes: YARN-300. After YARN-271, fair scheduler can infinite loop and not schedule any application. Contributed by Sandy Ryza. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1428393 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Thomas White 2013-01-03 15:10:14 +00:00
parent cd468dc7da
commit 7fcf0ec2aa
2 changed files with 4 additions and 1 deletions
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3
hadoop-yarn-project/CHANGES.txt
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@ -144,6 +144,9 @@ 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
YARN-9. Rename YARN_HOME to HADOOP_YARN_HOME. (vinodkv via acmurthy)

2
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
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@ -760,7 +760,7 @@ public class FairScheduler implements ResourceScheduler {
// 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());