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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13665) Erasure Coding codec should support fallback coder
Date Tue, 11 Apr 2017 15:02:41 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15964481#comment-15964481
] 

Hudson commented on HADOOP-13665:
---------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #11569 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/11569/])
HADOOP-13665. Erasure Coding codec should support fallback coder. (weichiu: rev f050afb5785dc38875cf644fd4f80a219d4345e7)
* (edit) hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/erasurecode/coder/TestHHXORErasureCoder.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSStripedOutputStreamWithFailure.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSStripedOutputStream.java
* (edit) hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/erasurecode/coder/TestRSErasureCoder.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestReconstructStripedFile.java
* (edit) hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
* (edit) hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/erasurecode/TestCodecRawCoderMapping.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestUnsetAndChangeDirectoryEcPolicy.java
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/erasurecode/CodecUtil.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSStripedInputStream.java


> Erasure Coding codec should support fallback coder
> --------------------------------------------------
>
>                 Key: HADOOP-13665
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13665
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: io
>            Reporter: Wei-Chiu Chuang
>            Assignee: Kai Sasaki
>            Priority: Blocker
>              Labels: hdfs-ec-3.0-must-do
>             Fix For: 3.0.0-alpha2
>
>         Attachments: HADOOP-13665.01.patch, HADOOP-13665.02.patch, HADOOP-13665.03.patch,
HADOOP-13665.04.patch, HADOOP-13665.05.patch, HADOOP-13665.06.patch, HADOOP-13665.07.patch,
HADOOP-13665.08.patch, HADOOP-13665.09.patch, HADOOP-13665.10.patch, HADOOP-13665.11.patch,
HADOOP-13665.12.patch
>
>
> The current EC codec supports a single coder only (by default pure Java implementation).
If the native coder is specified but is unavailable, it should fallback to pure Java implementation.
> One possible solution is to follow the convention of existing Hadoop native codec, such
as transport encryption (see {{CryptoCodec.java}}). It supports fallback by specifying two
or multiple coders as the value of property, and loads coders in order.



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