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https://issues.apache.org/jira/browse/HDFS-9977?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kai Sasaki resolved HDFS-9977.
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Resolution: Invalid
> CLONE - Erasure coding: DFSInputStream with decode functionality (pread)
> ------------------------------------------------------------------------
>
> Key: HDFS-9977
> URL: https://issues.apache.org/jira/browse/HDFS-9977
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: HDFS-7285
> Reporter: dragon
> Assignee: Zhe Zhang
> Fix For: HDFS-7285
>
>
> 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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