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https://issues.apache.org/jira/browse/HDFS-11623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15956732#comment-15956732
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Kai Zheng commented on HDFS-11623:
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Thanks [~andrew.wang] for the work!
I haven't got a chance to read the patch yet, so far just a quick question: it
looks to me the current {{ErasureCodingPolicyManager}} is still needed, and
what we might want is to have something like
{{System/BuiltInErasureCodingPolicies}} on client side. I mean, the manager
will manage both system or built-in polices and user defined polices via the
plugin mechanism. For client side codes and tests, it may be good enough to
just know the built-in policies; on NN server side and related tests, it may be
good to still use the manager.
> Move system erasure coding policies into hadoop-hdfs-client
> -----------------------------------------------------------
>
> Key: HDFS-11623
> URL: https://issues.apache.org/jira/browse/HDFS-11623
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: erasure-coding
> Affects Versions: 3.0.0-alpha2
> Reporter: Andrew Wang
> Assignee: Andrew Wang
> Attachments: HDFS-11623.001.patch, HDFS-11623.002.patch
>
>
> This is a precursor to HDFS-11565. We need to move the set of system defined
> EC policies out of the NameNode's ECPolicyManager into the hdfs-client module
> so it can be referenced by the client.
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