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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9386) Erasure coding: updateBlockForPipeline sometimes returns non-striped block for striped file
Date Mon, 23 Nov 2015 23:50:11 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15023387#comment-15023387
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Zhe Zhang commented on HDFS-9386:
---------------------------------

Unfortunately I haven't been able to reproduce this recently. I'll try to add some more assertions
and hopefully that will catch it.

> Erasure coding: updateBlockForPipeline sometimes returns non-striped block for striped
file
> -------------------------------------------------------------------------------------------
>
>                 Key: HDFS-9386
>                 URL: https://issues.apache.org/jira/browse/HDFS-9386
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: erasure-coding
>    Affects Versions: 3.0.0
>            Reporter: Zhe Zhang
>
> I've seen this bug a few times. The returned {{LocatedBlock}} from {{updateBlockForPipeline}}
is sometimes not {{LocatedStripedBlock}}. However, {{FSNamesystem#bumpBlockGenerationStamp}}
did return a {{LocatedStripedBlock}}. Maybe a bug in PB. I'm still debugging.



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