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https://issues.apache.org/jira/browse/YARN-2270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14058599#comment-14058599
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Akira AJISAKA commented on YARN-2270:
-------------------------------------
I reproduced this issue locally. Using debugger, I found the cause was that
NullPointerException occurred in {{FSDownload#getFileStatus}}.
{code}
return statCache.get(path).get(); // statCache.get(path) returns null
{code}
> TestFSDownload#testDownloadPublicWithStatCache fails in trunk
> -------------------------------------------------------------
>
> Key: YARN-2270
> URL: https://issues.apache.org/jira/browse/YARN-2270
> Project: Hadoop YARN
> Issue Type: Test
> Reporter: Ted Yu
> Assignee: Akira AJISAKA
> Priority: Minor
>
> From https://builds.apache.org/job/Hadoop-yarn-trunk/608/console :
> {code}
> Running org.apache.hadoop.yarn.util.TestFSDownload
> Tests run: 9, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 1.955 sec <<<
> FAILURE! - in org.apache.hadoop.yarn.util.TestFSDownload
> testDownloadPublicWithStatCache(org.apache.hadoop.yarn.util.TestFSDownload)
> Time elapsed: 0.137 sec <<< FAILURE!
> java.lang.AssertionError: null
> at org.junit.Assert.fail(Assert.java:86)
> at org.junit.Assert.assertTrue(Assert.java:41)
> at org.junit.Assert.assertTrue(Assert.java:52)
> at
> org.apache.hadoop.yarn.util.TestFSDownload.testDownloadPublicWithStatCache(TestFSDownload.java:363)
> {code}
> Similar error can be seen here:
> https://builds.apache.org/job/PreCommit-YARN-Build/4243//testReport/org.apache.hadoop.yarn.util/TestFSDownload/testDownloadPublicWithStatCache/
> Looks like future.get() returned null.
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