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https://issues.apache.org/jira/browse/HDFS-6926?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arpit Agarwal resolved HDFS-6926.
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Resolution: Fixed
Hadoop Flags: Reviewed
Thanks Jitendra! Committed to feature branch.
> DN support for saving replicas to persistent storage and evicting in-memory
> replicas
> ------------------------------------------------------------------------------------
>
> Key: HDFS-6926
> URL: https://issues.apache.org/jira/browse/HDFS-6926
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode
> Affects Versions: HDFS-6581
> Reporter: Arpit Agarwal
> Assignee: Arpit Agarwal
> Attachments: HDFS-6926.01.patch
>
>
> Add the following:
> # A lazy writer on the DN to move replicas from RAM disk to persistent
> storage.
> # 'Evict' persisted replicas from RAM disk to make space for new blocks.
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