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https://issues.apache.org/jira/browse/YARN-6272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16825473#comment-16825473
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Prabhu Joseph commented on YARN-6272:
-------------------------------------
There are two issues:
1. Test fails with below when both increase and decrease request processed in
same heartbeat.
{code}
java.lang.AssertionError: expected:<1> but was:<2>
at org.junit.Assert.fail(Assert.java:88)
at org.junit.Assert.failNotEquals(Assert.java:743)
{code}
2. Test fails when Updated Container is allocated on some other NM. The
requests are added back and reallocated on subsequent node updates.
{code}
ContainerUpdateContext.java
// Allocation happened on NM on the same host, but not on the NM
// we need.. We need to signal that this container has to be released.
// We also need to add these requests back.. to be reallocated.
{code}
Have added Wait and Retry with node update from the container's allocated node.
The testcase fails consistently while running in a for loop. The fix works fine
with allocateAttempts
goes up to 50 in few runs.
The issue was earlier fixed by YARN-5537 but then missed out during YARN-5221
feature merge.
> TestAMRMClient#testAMRMClientWithContainerResourceChange fails intermittently
> -----------------------------------------------------------------------------
>
> Key: YARN-6272
> URL: https://issues.apache.org/jira/browse/YARN-6272
> Project: Hadoop YARN
> Issue Type: Test
> Components: yarn
> Affects Versions: 3.0.0-alpha4
> Reporter: Ray Chiang
> Assignee: Prabhu Joseph
> Priority: Major
> Attachments: YARN-6272-001.patch
>
>
> I'm seeing this unit test fail fairly often in trunk:
> testAMRMClientWithContainerResourceChange(org.apache.hadoop.yarn.client.api.impl.TestAMRMClient)
> Time elapsed: 5.113 sec <<< FAILURE!
> java.lang.AssertionError: expected:<1> but was:<0>
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.failNotEquals(Assert.java:743)
> at org.junit.Assert.assertEquals(Assert.java:118)
> at org.junit.Assert.assertEquals(Assert.java:555)
> at org.junit.Assert.assertEquals(Assert.java:542)
> at
> org.apache.hadoop.yarn.client.api.impl.TestAMRMClient.doContainerResourceChange(TestAMRMClient.java:1087)
> at
> org.apache.hadoop.yarn.client.api.impl.TestAMRMClient.testAMRMClientWithContainerResourceChange(TestAMRMClient.java:963)
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