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https://issues.apache.org/jira/browse/HDFS-8272?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jing Zhao updated HDFS-8272:
----------------------------
    Attachment: h8272-HDFS-7285.000.patch

The 000 patch made the following changes:
# {{DFSStripedInputStream}} no longer retries finding another source DN for the 
same block.
# Let {{getBestNodeDNAddrPair}} not throwing IOException when the chosenNode is 
null.
# Remove some other unnecessary retry logic from {{DFSStripedInputStream}}.
# Some code cleanup.

> Erasure Coding: simplify the retry logic in DFSStripedInputStream
> -----------------------------------------------------------------
>
>                 Key: HDFS-8272
>                 URL: https://issues.apache.org/jira/browse/HDFS-8272
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>         Attachments: h8272-HDFS-7285.000.patch
>
>
> Currently in DFSStripedInputStream the retry logic is still the same with 
> DFSInputStream. More specifically, every failed read will try to search for 
> another source node. And an exception is thrown when no new source node can 
> be identified. This logic is not appropriate for EC inputstream and can be 
> simplified.



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