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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 11:15:24 -07:00 committed by Varun Saxena
parent 34570d4fc3
commit 70315de4ff
1 changed files with 4 additions and 2 deletions
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2
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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@ -219,10 +219,12 @@ public class TimelineCollectorManager extends AbstractService {
@Override @Override
protected void serviceStop() throws Exception { protected void serviceStop() throws Exception {
if (collectors != null && collectors.size() > 1) { if (collectors != null && collectors.size() > 1) {
synchronized (collectors) {
for (TimelineCollector c : collectors.values()) { for (TimelineCollector c : collectors.values()) {
c.serviceStop(); c.serviceStop();
} }
} }
}
// stop the flusher first // stop the flusher first
if (writerFlusher != null) { if (writerFlusher != null) {
writerFlusher.shutdown(); writerFlusher.shutdown();