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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5631) Expose interfaces required by FsDatasetSpi implementations
Date Tue, 20 Jan 2015 15:28:36 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14283921#comment-14283921
] 

Hudson commented on HDFS-5631:
------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk #2030 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2030/])
HDFS-5631. Change BlockMetadataHeader.readHeader(..), ChunkChecksum class and constructor
to public; and fix FsDatasetSpi to use generic type instead of FsVolumeImpl.  Contributed
by David Powell and Joe Pallas (szetszwo: rev 4a4450836c8972480b9387b5e31bab57ae2b5baa)
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/SimulatedFSDataset.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/extdataset/TestExternalDataset.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/extdataset/ExternalVolumeImpl.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/ChunkChecksum.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockMetadataHeader.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/extdataset/ExternalRollingLogs.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/extdataset/ExternalDatasetImpl.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/extdataset/ExternalReplicaInPipeline.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/RamDiskAsyncLazyPersistService.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/FsDatasetSpi.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/extdataset/ExternalReplica.java


> Expose interfaces required by FsDatasetSpi implementations
> ----------------------------------------------------------
>
>                 Key: HDFS-5631
>                 URL: https://issues.apache.org/jira/browse/HDFS-5631
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode
>    Affects Versions: 3.0.0
>            Reporter: David Powell
>            Assignee: Joe Pallas
>            Priority: Minor
>             Fix For: 3.0.0
>
>         Attachments: HDFS-5631-LazyPersist.patch, HDFS-5631-LazyPersist.patch, HDFS-5631.patch,
HDFS-5631.patch
>
>
> This sub-task addresses section 4.1 of the document attached to HDFS-5194,
> the exposure of interfaces needed by a FsDatasetSpi implementation.
> Specifically it makes ChunkChecksum public and BlockMetadataHeader's
> readHeader() and writeHeader() methods public.
> The changes to BlockReaderUtil (and related classes) discussed by section
> 4.1 are only needed if supporting short-circuit, and should be addressed
> as part of an effort to provide such support rather than this JIRA.
> To help ensure these changes are complete and are not regressed in the
> future, tests that gauge the accessibility (though *not* behavior)
> of interfaces needed by a FsDatasetSpi subclass are also included.
> These take the form of a dummy FsDatasetSpi subclass -- a successful
> compilation is effectively a pass.  Trivial unit tests are included so
> that there is something tangible to track.



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