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https://issues.apache.org/jira/browse/HADOOP-3778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12624679#action_12624679
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Hudson commented on HADOOP-3778:
--------------------------------
Integrated in Hadoop-trunk #581 (See
[http://hudson.zones.apache.org/hudson/job/Hadoop-trunk/581/])
> seek(long) in DFSInputStream should catch socket exception for retry later
> --------------------------------------------------------------------------
>
> Key: HADOOP-3778
> URL: https://issues.apache.org/jira/browse/HADOOP-3778
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.16.0
> Reporter: Luo Ning
> Assignee: Luo Ning
> Priority: Minor
> Fix For: 0.19.0
>
> Attachments: HADOOP-3778.patch, HADOOP-3778.patch, HADOOP-3778.patch
>
>
> HADOOP-2346 introduced data read/write timeout. when data stream borken,
> DFSClient will retry in read/write methods, but no such mechanism found when
> seek(long) calling blockReader.skip(diff) (DFSClient.java #1582), will let
> IOException throw to application. i met NPE when using MapFile in hbase.
> i'm supposing in the seek(long) method, let done be 'false' will causing
> retry (via 'blockEnd = -1'), a patch will attached later for review.
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