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https://issues.apache.org/jira/browse/HDFS-12460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16167729#comment-16167729
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Kai Zheng commented on HDFS-12460:
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Thanks Sammi for this. The patch LGTM. +1 pending on Jenkins.
> make addErasureCodingPolicy an idempotent operation
> ---------------------------------------------------
>
> Key: HDFS-12460
> URL: https://issues.apache.org/jira/browse/HDFS-12460
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: caching
> Reporter: SammiChen
> Assignee: SammiChen
> Attachments: HDFS-12460.001.patch
>
>
> Make addErasureCodingPolicy an idempotent operation to guarantee after HA
> switch, addErasureCodingPolicy edit log can be applied smoothly.
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