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Posted to hdfs-issues@hadoop.apache.org by "Xinwei Qin (JIRA)" <ji...@apache.org> on 2015/07/08 08:50:04 UTC

[jira] [Commented] (HDFS-8259) Erasure Coding: System Test of reading EC file

    [ https://issues.apache.org/jira/browse/HDFS-8259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14618082#comment-14618082 ] 

Xinwei Qin  commented on HDFS-8259:
-----------------------------------

Attached the patch to review. About reading a file with some datanodes failure or some blocks corrupted or some blocks deleted.

> Erasure Coding: System Test of reading EC file
> ----------------------------------------------
>
>                 Key: HDFS-8259
>                 URL: https://issues.apache.org/jira/browse/HDFS-8259
>             Project: Hadoop HDFS
>          Issue Type: Test
>    Affects Versions: HDFS-7285
>            Reporter: GAO Rui
>            Assignee: Xinwei Qin 
>         Attachments: HDFS-8259-HDFS-7285.001.patch
>
>
> 1. Normally reading EC file(reading without datanote failure and no need of recovery)
> 2. Reading EC file with datanode failure.
> 3. Reading EC file with data block recovery by decoding from parity blocks.



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