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https://issues.apache.org/jira/browse/HDFS-11314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15902225#comment-15902225
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Kai Zheng commented on HDFS-11314:
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The latest patch LGTM and +1. Thanks Andrew for the nice work!
> Enforce set of enabled EC policies on the NameNode
> --------------------------------------------------
>
> Key: HDFS-11314
> URL: https://issues.apache.org/jira/browse/HDFS-11314
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: erasure-coding
> Affects Versions: 3.0.0-alpha1
> Reporter: Andrew Wang
> Assignee: Andrew Wang
> Priority: Blocker
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-11314.001.patch, HDFS-11314.002.patch,
> HDFS-11314.003.patch, HDFS-11314.004.patch, HDFS-11314.005.patch,
> HDFS-11314.006.patch
>
>
> Filing based on discussion in HDFS-8095. A user might specify a policy that
> is not appropriate for the cluster, e.g. a RS (10,4) policy when the cluster
> only has 10 nodes. The NN should only allow the client to choose from a
> pre-approved list determined by the cluster administrator.
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