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https://issues.apache.org/jira/browse/HDFS-11082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16125322#comment-16125322
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SammiChen commented on HDFS-11082:
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Hi [~andrew.wang], thanks for the review. I have uploaded a new patch with all
your suggests are addressed. With 003.patch,
1. user can set replication policy by `ec -setpolicy -path path -replicate` or
DistributedFileSystem.setErasureCodingPolicy() with replication policy name
"REPLICATION"
2. replication policy will not returned either 'ec -listPolicies` nor
DistributedFileSystem.getAllErasureCodingPolicies(), or
DistributedFileSystem.getErasureCodingPolicy(), or `ec -getPolicy -path path`
3. replication policy is maintained in namenode side only. It's always enabled
regardless any hdfs property configuration.
> Erasure Coding : Provide replicated EC policy to just replicating the files
> ---------------------------------------------------------------------------
>
> Key: HDFS-11082
> URL: https://issues.apache.org/jira/browse/HDFS-11082
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: erasure-coding
> Reporter: Rakesh R
> Assignee: SammiChen
> Priority: Critical
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-11082.001.patch, HDFS-11082.002.patch,
> HDFS-11082.003.patch
>
>
> The idea of this jira is to provide a new {{replicated EC policy}} so that we
> can override the EC policy on a parent directory and go back to just
> replicating the files based on replication factors.
> Thanks [~andrew.wang] for the
> [discussions|https://issues.apache.org/jira/browse/HDFS-11072?focusedCommentId=15620743&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15620743].
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