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Posted to yarn-issues@hadoop.apache.org by "Ajith S (JIRA)" <ji...@apache.org> on 2016/08/08 13:17:20 UTC
[jira] [Commented] (YARN-2398) TestResourceTrackerOnHA crashes
[ https://issues.apache.org/jira/browse/YARN-2398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15411790#comment-15411790 ]
Ajith S commented on YARN-2398:
-------------------------------
I encountered with same scenario. I guess the bug is because of {{org.apache.hadoop.yarn.client.ProtocolHATestBase.MiniYARNClusterForHATesting.waittingForFailOver()}}
{code}
private boolean waittingForFailOver() {
int maximumWaittingTime = 50;
int count = 0;
while (!failoverTriggered.get() && count >= maximumWaittingTime) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// DO NOTHING
}
count++;
}
.......
{code}
here it should be {{count <= maximumWaittingTime}}
As otherwise, the while loop will be exit at first check itself, and there is no actual wait hence it causes racecondition between failover and registerNM event
> TestResourceTrackerOnHA crashes
> -------------------------------
>
> Key: YARN-2398
> URL: https://issues.apache.org/jira/browse/YARN-2398
> Project: Hadoop YARN
> Issue Type: Test
> Reporter: Jason Lowe
> Assignee: Ajith S
>
> TestResourceTrackerOnHA is currently crashing and failing trunk builds.
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