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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8077) Erasure coding: fix bug in EC zone and symlinks
Date Tue, 07 Apr 2015 21:01:12 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14484040#comment-14484040
] 

Zhe Zhang commented on HDFS-8077:
---------------------------------

[~jingzhao] There are 2 other [test failures | https://builds.apache.org/job/Hadoop-HDFS-7285-nightly/lastCompletedBuild/testReport/]
that I think we should fix.

One is in {{TestAddStripedBlocks}}. Seems the striped block feature is not preserved after
NN restart?

The other one in {{blockReport_07}} is about corrupt blocks. I don't have a clear clue of
it yet.

> Erasure coding: fix bug in EC zone and symlinks
> -----------------------------------------------
>
>                 Key: HDFS-8077
>                 URL: https://issues.apache.org/jira/browse/HDFS-8077
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>         Attachments: HDFS-8077-000.patch
>
>
> EC zone manager tries to get XAttr of an inode to determine the EC policy, which doesn't
work with symlinks. This patch has a simple fix to get rid of test failures.
> Ideally we should also add logic to disallow creating symlinks in several EC-related
scenarios. But since symlinks are disabled in branch-2 and will likely be disabled in trunk,
this step is skipped now.
> The patch also fixes a small test error around {{getBlockReplication}}



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