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https://issues.apache.org/jira/browse/HDFS-12395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16170622#comment-16170622
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Andrew Wang commented on HDFS-12395:
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[~kihwal] EC added LV -64 when the branch was merged. Since we've been in alpha
up to now, the thinking was that we can piggyback on the existing EC layout
version since we don't need to support upgrade from alpha->beta.
> Support erasure coding policy operations in namenode edit log
> -------------------------------------------------------------
>
> Key: HDFS-12395
> URL: https://issues.apache.org/jira/browse/HDFS-12395
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: erasure-coding
> Reporter: SammiChen
> Assignee: SammiChen
> Labels: hdfs-ec-3.0-must-do
> Fix For: 3.0.0-beta1
>
> Attachments: editsStored, HDFS-12395.001.patch, HDFS-12395.002.patch,
> HDFS-12395.003.patch, HDFS-12395.004.patch
>
>
> Support add, remove, disable, enable erasure coding policy operation in edit
> log.
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