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https://issues.apache.org/jira/browse/HDFS-3948?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jing Zhao updated HDFS-3948:
----------------------------
Attachment: HDFS-3948.001.patch
Initial patch to fix the testcase. Because webhdfs does not support hflush, it
is difficult to avoid the race between webhdfs@DN's writing and NN's shutdown.
Thus in this patch, I close the corresponding FSDataOutputStream (instead of
calling its hflush) when the testcase is run for webhdfs.
> TestWebHDFS#testNamenodeRestart is racy
> ----------------------------------------
>
> Key: HDFS-3948
> URL: https://issues.apache.org/jira/browse/HDFS-3948
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.0.0-alpha
> Reporter: Eli Collins
> Assignee: Jing Zhao
> Attachments: HDFS-3948.001.patch,
> HDFS-3948-regenerate-exception.002.patch, HDFS-3948-regenerate-exception.patch
>
>
> After fixing HDFS-3936 I noticed that TestWebHDFS#testNamenodeRestart fails
> when looping it, on my system it takes about 40 runs. WebHdfsFileSystem#close
> is racing with restart and resulting in an add block after the edit log is
> closed.
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