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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8668) Erasure Coding: revisit buffer used for encoding and decoding.
Date Fri, 12 Aug 2016 06:52:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15418433#comment-15418433
] 

Hudson commented on HDFS-8668:
------------------------------

ABORTED: Integrated in Hadoop-trunk-Commit #10267 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/10267/])
HDFS-8668. Erasure Coding: revisit buffer used for encoding and (kai.zheng: rev b5af9be72c72734d668f817c99d889031922a951)
* hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSStripedInputStream.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedReconstructor.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedBlockReconstructor.java
* hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/ElasticByteBufferPool.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedBlockReader.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSStripedOutputStream.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedBlockWriter.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReconstructStripedFile.java
* hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSOutputStream.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSStripedOutputStreamWithFailure.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedWriter.java
* hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSStripedOutputStream.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedBlockChecksumReconstructor.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSStripedInputStream.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedReader.java


> Erasure Coding: revisit buffer used for encoding and decoding.
> --------------------------------------------------------------
>
>                 Key: HDFS-8668
>                 URL: https://issues.apache.org/jira/browse/HDFS-8668
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Yi Liu
>            Assignee: SammiChen
>             Fix For: 3.0.0-alpha1
>
>         Attachments: HDFS-8668-v1.patch, HDFS-8668-v2.patch, HDFS-8668-v3.patch, HDFS-8668-v4.patch,
HDFS-8668-v5.patch, HDFS-8668-v6.patch, HDFS-8668-v7.patch, HDFS-8668-v8.patch, HDFS-8668-v9.patch
>
>
> For encoding and decoding buffers, currently some places use java heap ByteBuffer,  some
use direct byteBUffer, and some use java byte array.  If the coder implementation is native,
we should use direct ByteBuffer. This jira is to  revisit all encoding/decoding buffers and
improve them.



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