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From "Huafeng Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12497) Re-enable TestDFSStripedOutputStreamWithFailure tests
Date Fri, 29 Sep 2017 06:28:08 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16185412#comment-16185412
] 

Huafeng Wang commented on HDFS-12497:
-------------------------------------

Hi [~Sammi] [~andrew.wang], I found decreasing the number of stripes of a block cannot totally
solve the timeout issue. It will also impact the original test cases. In original {{TestDFSStripedOutputStreamWithFailure}},
it generates a list of 216(3 * 4 * 6 * 3) different file lengths and the subclass will choose
different file length to run the test. Setting stripes of a block to 2 will make some test
cases actually invalid. 

So I proposed to decrease the cell size in these test cases. I'll give it a try and see whether
the timeout issue can be eliminated.

> Re-enable TestDFSStripedOutputStreamWithFailure tests
> -----------------------------------------------------
>
>                 Key: HDFS-12497
>                 URL: https://issues.apache.org/jira/browse/HDFS-12497
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: erasure-coding
>    Affects Versions: 3.0.0-beta1
>            Reporter: Andrew Wang
>            Assignee: Huafeng Wang
>              Labels: flaky-test, hdfs-ec-3.0-must-do
>         Attachments: HDFS-12497.001.patch, HDFS-12497.002.patch
>
>
> We disabled this suite of tests in HDFS-12417 since they were very flaky. We should fix
these tests and re-enable them.



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