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https://issues.apache.org/jira/browse/HDFS-11394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16000066#comment-16000066
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Andrew Wang commented on HDFS-11394:
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For built-in policies, the EC policy name fully specifies the EC policy
parameters, e.g. "RS-6-3-64k". So, the name is sufficient for built-in policies.
We also should still support parsing a fully-specified EC policy too, to
support pluggable policies. This relates to pluggable EC policies. Hoping we
can still unit test this specifically for WebHDFS.
> Add method for getting erasure coding policy through WebHDFS
> -------------------------------------------------------------
>
> Key: HDFS-11394
> URL: https://issues.apache.org/jira/browse/HDFS-11394
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: erasure-coding, namenode
> Reporter: Kai Sasaki
> Assignee: Kai Sasaki
> Labels: hdfs-ec-3.0-nice-to-have
> Attachments: HDFS-11394.01.patch, HDFS-11394.02.patch
>
>
> We can expose erasure coding policy by erasure coded directory through
> WebHDFS method as well as storage policy. This information can be used by
> NameNode Web UI and show the detail of erasure coded directories.
> see: HDFS-8196
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