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https://issues.apache.org/jira/browse/YARN-2765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14218766#comment-14218766
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Jian He commented on YARN-2765:
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thanks Jason for working on this.
It's useful to have leveldb as an option for RMStateStore, as its more
lightweight compared to others. reviewing the patch
> Add leveldb-based implementation for RMStateStore
> -------------------------------------------------
>
> Key: YARN-2765
> URL: https://issues.apache.org/jira/browse/YARN-2765
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Attachments: YARN-2765.patch, YARN-2765v2.patch
>
>
> It would be nice to have a leveldb option to the resourcemanager recovery
> store. Leveldb would provide some benefits over the existing filesystem store
> such as better support for atomic operations, fewer I/O ops per state update,
> and far fewer total files on the filesystem.
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