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https://issues.apache.org/jira/browse/HDFS-10460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15346192#comment-15346192
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Hudson commented on HDFS-10460:
-------------------------------
SUCCESS: Integrated in Hadoop-trunk-Commit #10009 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/10009/])
HDFS-10460. Recompute block checksum for a particular range less than
(kai.zheng: rev e6cb07520f935efde3e881de8f84ee7f6e0a746f)
* hadoop-hdfs-project/hadoop-hdfs-client/src/main/proto/datatransfer.proto
*
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocol/datatransfer/DataTransferProtocol.java
*
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocol/datatransfer/Sender.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileChecksum.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockChecksumHelper.java
*
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/FileChecksumHelper.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedBlockChecksumReconstructor.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataXceiver.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/datatransfer/Receiver.java
> Erasure Coding: Recompute block checksum for a particular range less than
> file size on the fly by reconstructing missed block
> -----------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-10460
> URL: https://issues.apache.org/jira/browse/HDFS-10460
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode
> Reporter: Rakesh R
> Assignee: Rakesh R
> Fix For: 3.0.0-alpha1
>
> Attachments: HDFS-10460-00.patch, HDFS-10460-01.patch,
> HDFS-10460-02.patch, HDFS-10460-03.patch, HDFS-10460-04.patch,
> HDFS-10460-05.patch
>
>
> This jira is HDFS-9833 follow-on task to address reconstructing block and
> then recalculating block checksum for a particular range query.
> For example,
> {code}
> // create a file 'stripedFile1' with fileSize = cellSize * numDataBlocks =
> 65536 * 6 = 393216
> FileChecksum stripedFileChecksum = getFileChecksum(stripedFile1, 10, true);
> {code}
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