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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3177) Allow DFSClient to find out and use the CRC type being used for a file.
Date Fri, 24 Aug 2012 03:10:43 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13440902#comment-13440902
] 

Hadoop QA commented on HDFS-3177:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12542223/hdfs-3177-minimum-without-append-concat-trunk-branch2.patch.txt
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 1 new or modified test files.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    -1 findbugs.  The patch appears to introduce 1 new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    -1 core tests.  The patch failed these unit tests in hadoop-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.hdfs.TestDatanodeBlockScanner
                  org.apache.hadoop.hdfs.TestPersistBlocks

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/3084//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HDFS-Build/3084//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/3084//console

This message is automatically generated.
                
> Allow DFSClient to find out and use the CRC type being used for a file.
> -----------------------------------------------------------------------
>
>                 Key: HDFS-3177
>                 URL: https://issues.apache.org/jira/browse/HDFS-3177
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: data-node, hdfs client
>    Affects Versions: 0.23.0
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>             Fix For: 2.1.0-alpha, 3.0.0
>
>         Attachments: hdfs-3177-after-hadoop-8239-8240.patch.txt, hdfs-3177-after-hadoop-8239.patch.txt,
hdfs-3177-branch2-trunk.patch.txt, hdfs-3177-branch2-trunk.patch.txt, hdfs-3177-branch2-trunk.patch.txt,
hdfs-3177-branch2-trunk.patch.txt, hdfs-3177-branch2-trunk.patch.txt, hdfs-3177-branch2-trunk.patch.txt,
hdfs-3177-branch2-trunk.patch.txt, hdfs-3177-minimum-without-append-concat-branch-0.23.patch.txt,
hdfs-3177-minimum-without-append-concat-trunk-branch2.patch.txt, hdfs-3177.patch, hdfs-3177-with-hadoop-8239-8240.patch.txt,
hdfs-3177-with-hadoop-8239-8240.patch.txt, hdfs-3177-with-hadoop-8239-8240.patch.txt, hdfs-3177-with-hadoop-8239.patch.txt
>
>
> To support HADOOP-8060, DFSClient should be able to find out the checksum type being
used for files in hdfs.
> In my prototype, DataTransferProtocol was extended to include the checksum type in the
blockChecksum() response. DFSClient uses it in getFileChecksum() to determin the checksum
type. Also append() can be configured to use the existing checksum type instead of the configured
one.

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