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YARN-6563 ConcurrentModificationException in TimelineCollectorManager while stopping RM (Contributed by Haibo Chen via Vrushali C)

This commit is contained in:
Vrushali Channapattan 2017-05-09 11:18:12 -07:00
parent 45382bf047
commit 7dd258d8f4
1 changed files with 4 additions and 2 deletions
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6
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/collector/TimelineCollectorManager.java
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@ -219,8 +219,10 @@ public class TimelineCollectorManager extends AbstractService {
@Override
protected void serviceStop() throws Exception {
if (collectors != null && collectors.size() > 1) {
for (TimelineCollector c : collectors.values()) {
c.serviceStop();
synchronized (collectors) {
for (TimelineCollector c : collectors.values()) {
c.serviceStop();
}
}
}
// stop the flusher first