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https://issues.apache.org/jira/browse/HDFS-10146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinayakumar B deleted HDFS-10146:
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> CLONE - Erasure Coding: Client no need to decode missing parity blocks
> ----------------------------------------------------------------------
>
> Key: HDFS-10146
> URL: https://issues.apache.org/jira/browse/HDFS-10146
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: dragon
> Assignee: Walter Su
> Priority: Minor
>
> Assume 6+3 schema.
> Assume data block #2 is missing, then InputStream tries to read parity block
> #6.
> Assume parity block #6 is missing too. And InputStream successfully reads
> parity block #7.
> Then begin to decode.
> Currently InputStream will decode #2 and #6. But client(user) only need #2.
> The parity block #6 will be disposed.
> The improvement is we only decode #2.
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