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https://issues.apache.org/jira/browse/HDFS-7678?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14937338#comment-14937338
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Hudson commented on HDFS-7678:
------------------------------
FAILURE: Integrated in Hadoop-trunk-Commit #8548 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/8548/])
HDFS-7678. Erasure coding: DFSInputStream with decode functionality (zhezhang:
rev 8d3030f064116a657c2cbb7c7560af6bed1d5586)
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/util/StripedBlockUtil.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSStripedInputStream.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/ErasureCodingWorker.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSStripedInputStream.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES-HDFS-EC-7285.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestWriteReadStripedFile.java
> Erasure coding: DFSInputStream with decode functionality (pread)
> ----------------------------------------------------------------
>
> Key: HDFS-7678
> URL: https://issues.apache.org/jira/browse/HDFS-7678
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: HDFS-7285
> Reporter: Li Bo
> Assignee: Zhe Zhang
> Fix For: HDFS-7285
>
> Attachments: BlockGroupReader.patch, HDFS-7678-HDFS-7285.002.patch,
> HDFS-7678-HDFS-7285.003.patch, HDFS-7678-HDFS-7285.004.patch,
> HDFS-7678-HDFS-7285.005.patch, HDFS-7678-HDFS-7285.006.patch,
> HDFS-7678-HDFS-7285.007.patch, HDFS-7678-HDFS-7285.008.patch,
> HDFS-7678-HDFS-7285.009.patch, HDFS-7678-HDFS-7285.010.patch,
> HDFS-7678-HDFS-7285.012.patch, HDFS-7678-HDFS-7285.013.patch,
> HDFS-7678-HDFS-7285.014.patch, HDFS-7678.000.patch, HDFS-7678.001.patch
>
>
> A block group reader will read data from BlockGroup no matter in striping
> layout or contiguous layout. The corrupt blocks can be known before
> reading(told by namenode), or just be found during reading. The block group
> reader needs to do decoding work when some blocks are found corrupt.
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