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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6865) Byte array native checksumming on client side (HDFS changes)
Date Thu, 28 Aug 2014 19:39:09 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14114221#comment-14114221
] 

stack commented on HDFS-6865:
-----------------------------

bq, Stack, by any chance did you run any HBase correctness or system tests with the patch
enabled? 

Ran a short test.IntegrationTestBigLinkedList on a small cluster. 

{code}
2014-08-28 12:18:30,126 INFO  [main] test.IntegrationTestBigLinkedList$Loop: Verify finished
with succees. Total nodes=2000000
{code}

I'd imagine it would fail if we were misreading.

> Byte array native checksumming on client side (HDFS changes)
> ------------------------------------------------------------
>
>                 Key: HDFS-6865
>                 URL: https://issues.apache.org/jira/browse/HDFS-6865
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs-client, performance
>            Reporter: James Thomas
>            Assignee: James Thomas
>         Attachments: HDFS-6865.2.patch, HDFS-6865.3.patch, HDFS-6865.4.patch, HDFS-6865.5.patch,
HDFS-6865.6.patch, HDFS-6865.7.patch, HDFS-6865.8.patch, HDFS-6865.patch
>
>
> Refactor FSOutputSummer to buffer data and use the native checksum calculation functionality
introduced in HADOOP-10975.



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