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https://issues.apache.org/jira/browse/FLINK-8148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chesnay Schepler closed FLINK-8148.
-----------------------------------
Resolution: Fixed
1.4: a86cb885ce0ed4255354cf0012c7e7e5d88777e6
> Test instability in YarnFileStageTest
> -------------------------------------
>
> Key: FLINK-8148
> URL: https://issues.apache.org/jira/browse/FLINK-8148
> Project: Flink
> Issue Type: Bug
> Components: Tests, YARN
> Affects Versions: 1.4.0
> Reporter: Nico Kruber
> Assignee: Nico Kruber
> Priority: Critical
> Labels: test-stability
> Fix For: 1.4.0
>
>
> {code}
> Running org.apache.flink.yarn.YarnFileStageTestS3ITCase
> Tests run: 3, Failures: 1, Errors: 0, Skipped: 1, Time elapsed: 13.152 sec
> <<< FAILURE! - in org.apache.flink.yarn.YarnFileStageTestS3ITCase
> testRecursiveUploadForYarnS3(org.apache.flink.yarn.YarnFileStageTestS3ITCase)
> Time elapsed: 8.515 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.assertFalse(Assert.java:64)
> at org.junit.Assert.assertFalse(Assert.java:74)
> at
> org.apache.flink.yarn.YarnFileStageTestS3ITCase.testRecursiveUploadForYarn(YarnFileStageTestS3ITCase.java:171)
> at
> org.apache.flink.yarn.YarnFileStageTestS3ITCase.testRecursiveUploadForYarnS3(YarnFileStageTestS3ITCase.java:192)
> {code}
> from https://travis-ci.org/apache/flink/jobs/305861539
> {{YarnFileStageTestS3ITCase.testRecursiveUploadForYarn}} verifies that the
> test directory used is cleaned up by
> {{YarnFileStageTest.testCopyFromLocalRecursive}} which should clean up the
> directory (in a {{finally}} block). However, for S3, we may not always see
> our own deletes.
> Quoting from https://aws.amazon.com/s3/faqs/ here:
> {quote}Q: What data consistency model does Amazon S3 employ?
> Amazon S3 buckets in all Regions provide read-after-write consistency for
> PUTS of new objects and eventual consistency for overwrite PUTS and
> DELETES.{quote}
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