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https://issues.apache.org/jira/browse/YARN-1730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13919661#comment-13919661
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Vinod Kumar Vavilapalli commented on YARN-1730:
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I wish there were more tests, but testing these write locks isn't easy. So I am
fine for now.
The latest patch looks good to me. +1. Checking this in.
> Leveldb timeline store needs simple write locking
> -------------------------------------------------
>
> Key: YARN-1730
> URL: https://issues.apache.org/jira/browse/YARN-1730
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Billie Rinaldi
> Assignee: Billie Rinaldi
> Attachments: YARN-1730.1.patch, YARN-1730.2.patch, YARN-1730.3.patch,
> YARN-1730.4.patch, YARN-1730.5.patch, YARN-1730.6.patch
>
>
> Although the leveldb writes are performed atomically in a batch, a start time
> for the entity needs to identified before each write. Thus a per-entity
> write lock should be acquired.
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