Merge -r 1428399:1428400 from trunk to branch-2. Fixes: YARN-301. Fair scheduler throws ConcurrentModificationException when iterating over app's priorities. Contributed by Sandy Ryza.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1428401 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Thomas White 2013-01-03 15:29:17 +00:00
parent 7fcf0ec2aa
commit ece31146cf
2 changed files with 30 additions and 25 deletions

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@ -147,6 +147,9 @@ Release 2.0.3-alpha - Unreleased
YARN-300. After YARN-271, fair scheduler can infinite loop and not
schedule any application. (Sandy Ryza via tomwhite)
YARN-301. Fair scheduler throws ConcurrentModificationException when
iterating over app's priorities. (Sandy Ryza via tomwhite)
Release 2.0.2-alpha - 2012-09-07
YARN-9. Rename YARN_HOME to HADOOP_YARN_HOME. (vinodkv via acmurthy)

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@ -305,6 +305,7 @@ public Resource assignContainer(FSSchedulerNode node, boolean reserved) {
// For each priority, see if we can schedule a node local, rack local
// or off-switch request. Rack of off-switch requests may be delayed
// (not scheduled) in order to promote better locality.
synchronized (app) {
for (Priority priority : prioritiesToTry) {
app.addSchedulingOpportunity(priority);
NodeType allowedLocality = app.getAllowedLocalityLevel(priority,
@ -335,6 +336,7 @@ public Resource assignContainer(FSSchedulerNode node, boolean reserved) {
NodeType.OFF_SWITCH, reserved);
}
}
}
return Resources.none();
}
}