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