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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3625) RollingLevelDBTimelineStore Incorrectly Forbids Related Entity in Same Put
Date Wed, 13 May 2015 19:58:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-3625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14542582#comment-14542582
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Zhijie Shen commented on YARN-3625:
-----------------------------------

bq. To handle this scenario, I relax the domain checking to mean if a domain is non-existent
we can treat this as if we are in the temporary state we have staged the domain to be written
for the related entity but have not yet written it to the database.

I see. What to do with the following case if entity1 of domain1 relates to entity2 of domain2,
and they're put in a same batch? According to the patch, it seems that the relation will be
allowed, right? However, we previously stop the relationship across domains.

> RollingLevelDBTimelineStore Incorrectly Forbids Related Entity in Same Put
> --------------------------------------------------------------------------
>
>                 Key: YARN-3625
>                 URL: https://issues.apache.org/jira/browse/YARN-3625
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Jonathan Eagles
>            Assignee: Jonathan Eagles
>         Attachments: YARN-3625.1.patch, YARN-3625.2.patch
>
>
> RollingLevelDBTimelineStore batches all entities in the same put to improve performance.
This causes an error when relating to an entity in the same put however.



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