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https://issues.apache.org/jira/browse/HDFS-12318?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16134625#comment-16134625
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John Zhuge commented on HDFS-12318:
-----------------------------------
[~legend] Great catch and thanks for the patch. I will take a look.
BTW, could you add a unit test? I know unit test is tougher to write than the
fix itself, but it will make sure nobody will break your fix in the future.
> Fix IOException condition for openInfo in DFSInputStream
> --------------------------------------------------------
>
> Key: HDFS-12318
> URL: https://issues.apache.org/jira/browse/HDFS-12318
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.0.0-beta1
> Reporter: legend
> Assignee: legend
> Attachments: HDFS-12318.patch
>
>
> when retriesForLastBlockLength == 0 and lastBlockBeingWrittenLength != -1,
> "openInfo" successfully obtains the last blcok locations, and the function
> still throws IOException.
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