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https://issues.apache.org/jira/browse/HDFS-6097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13935111#comment-13935111
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Hudson commented on HDFS-6097:
------------------------------
SUCCESS: Integrated in Hadoop-Mapreduce-trunk #1726 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1726/])
HDFS-6097. Zero-copy reads are incorrectly disabled on file offsets above 2GB
(cmccabe) (cmccabe:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1577350)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSInputStream.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/client/ShortCircuitReplica.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/TestEnhancedByteBufferAccess.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/BlockReaderTestUtil.java
> zero-copy reads are incorrectly disabled on file offsets above 2GB
> ------------------------------------------------------------------
>
> Key: HDFS-6097
> URL: https://issues.apache.org/jira/browse/HDFS-6097
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs-client
> Affects Versions: 2.4.0
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Fix For: 2.4.0
>
> Attachments: HDFS-6097.003.patch, HDFS-6097.004.patch,
> HDFS-6097.005.patch
>
>
> Zero-copy reads are incorrectly disabled on file offsets above 2GB due to
> some code that is supposed to disable zero-copy reads on offsets in block
> files greater than 2GB (because MappedByteBuffer segments are limited to that
> size).
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