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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3051) [Storage abstraction] Create backing storage read interface for ATS readers
Date Fri, 19 Jun 2015 23:30:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-3051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14594098#comment-14594098
] 

Zhijie Shen commented on YARN-3051:
-----------------------------------

Yeah, I meant to be AND logic for these parameters. I think it's good to be declare explicitly.

To extend the parameter, we can add more parameter like AND and OR. I agree it's good to take
a look at HBase filter abstraction, and draft ours accordingly. I consider them as the code
improvement of filter abstraction, but other than it, hopefully we can agree on using these
filters.

bq. Probably obvious, but once ALL is specified, all fields will be returned, even if only
some Fields are specified and others not.

Exactly.

> [Storage abstraction] Create backing storage read interface for ATS readers
> ---------------------------------------------------------------------------
>
>                 Key: YARN-3051
>                 URL: https://issues.apache.org/jira/browse/YARN-3051
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>    Affects Versions: YARN-2928
>            Reporter: Sangjin Lee
>            Assignee: Varun Saxena
>         Attachments: YARN-3051-YARN-2928.003.patch, YARN-3051-YARN-2928.03.patch, YARN-3051-YARN-2928.04.patch,
YARN-3051.Reader_API.patch, YARN-3051.Reader_API_1.patch, YARN-3051.Reader_API_2.patch, YARN-3051.wip.02.YARN-2928.patch,
YARN-3051.wip.patch, YARN-3051_temp.patch
>
>
> Per design in YARN-2928, create backing storage read interface that can be implemented
by multiple backing storage implementations.



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