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From "Liang Xie (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5870) The legacy local reader stops working on block token expiration
Date Sat, 08 Feb 2014 03:58:19 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13895420#comment-13895420
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Liang Xie commented on HDFS-5870:
---------------------------------

+1 (i'm not a hdfs committer, just the original contributor of HDFS-5637), good catch!  I
ported the orignal HDFS-5637 patch into trunk from our internal branch which is based on community
2.0.0 codebase, there's no any "legacy" related code path:)  Thank you [~kihwal]

> The legacy local reader stops working on block token expiration
> ---------------------------------------------------------------
>
>                 Key: HDFS-5870
>                 URL: https://issues.apache.org/jira/browse/HDFS-5870
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.3.0
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>         Attachments: HDFS-5870.patch
>
>
> HDFS-5637 fixed the issue for 2.0, but after the new domain socket based local reader,
the fix won't work for the old "legacy" short-circuit local reader. This is because DFSInputStream#getBlockReader()
catches IOException and disables it when calling BlockReaderFactory.getLegacyBlockReaderLocal().



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