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From "Li Lu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4219) New levelDB cache storage for timeline v1.5
Date Fri, 06 Nov 2015 18:21:11 GMT

    [ https://issues.apache.org/jira/browse/YARN-4219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14994141#comment-14994141
] 

Li Lu commented on YARN-4219:
-----------------------------

Yes, this is a caching storage for ATS v1.5 design. We can prioritize any "up-level" storage
that uses this caching storage. I'll fix the maven problem soon. 

> New levelDB cache storage for timeline v1.5
> -------------------------------------------
>
>                 Key: YARN-4219
>                 URL: https://issues.apache.org/jira/browse/YARN-4219
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>    Affects Versions: 2.8.0
>            Reporter: Li Lu
>            Assignee: Li Lu
>         Attachments: YARN-4219-trunk.001.patch, YARN-4219-trunk.002.patch, YARN-4219-trunk.003.patch
>
>
> We need to have an "offline" caching storage for timeline server v1.5 after the changes
in YARN-3942. The in memory timeline storage may run into OOM issues when used as a cache
storage for entity file timeline storage. We can refactor the code and have a level db based
caching storage for this use case. 



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