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https://issues.apache.org/jira/browse/HDFS-11604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15963851#comment-15963851
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Kai Zheng commented on HDFS-11604:
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bq. I would prefer CLI command has a function to list all current enabled EC
policies, not just the system policies.
Sammi, I thought you meant it should list all EC policies including system
policies and user defined ones. Overall your idea sounds good to me.
The patch needs to be renamed according to this JIRA number. [~zenglinx] please
read [How to contribute|https://wiki.apache.org/hadoop/HowToContribute]. Thanks.
> Define and parse erasure code codecs, schemas and policies
> ----------------------------------------------------------
>
> Key: HDFS-11604
> URL: https://issues.apache.org/jira/browse/HDFS-11604
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: erasure-coding
> Reporter: Kai Zheng
> Assignee: Lin Zeng
> Fix For: 3.0.0-alpha3
>
> Attachments: ec-config-sample.xml, HDFS-11664-v1.patch
>
>
> According to recent discussions with [~andrew.wang] in HDFS-7337, it would be
> good to support allowing users to define their own erasure code codecs,
> schemas and policies via an XML file. The XML file can be passed to a CLI cmd
> to parse and send to NameNode to persist and maintain.
> Open this task to define the XML format providing a default sample file to
> put in the configuration folder for users' reference, and implement the
> necessary parser utility.
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