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From "Varun Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3863) Support complex filters in TimelineReader
Date Thu, 25 Feb 2016 18:11:18 GMT

    [ https://issues.apache.org/jira/browse/YARN-3863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15167556#comment-15167556
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Varun Saxena commented on YARN-3863:
------------------------------------

bq. l.532: This is an interesting point. Should we categorically disallow any multi-entity
reads without a filter? Is it an obvious requirement? I understand we already set some default
values (e.g. created time, etc.) so this might be a moot point, but do we need to check for
it when some defaults are set anyway?
It is more like that we expect a filter list for filters from REST layer, even if empty. Otherwise
I will have to introduce null checks everywhere. We can do that as well. I agree this might
indicate that filters are necessary for multi entity reads. That was not the intention though.

> Support complex filters in TimelineReader
> -----------------------------------------
>
>                 Key: YARN-3863
>                 URL: https://issues.apache.org/jira/browse/YARN-3863
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>    Affects Versions: YARN-2928
>            Reporter: Varun Saxena
>            Assignee: Varun Saxena
>              Labels: yarn-2928-1st-milestone
>         Attachments: YARN-3863-YARN-2928.v2.01.patch, YARN-3863-YARN-2928.v2.02.patch,
YARN-3863-feature-YARN-2928.wip.003.patch, YARN-3863-feature-YARN-2928.wip.01.patch, YARN-3863-feature-YARN-2928.wip.02.patch,
YARN-3863-feature-YARN-2928.wip.04.patch, YARN-3863-feature-YARN-2928.wip.05.patch
>
>
> Currently filters in timeline reader will return an entity only if all the filter conditions
hold true i.e. only AND operation is supported. We can support OR operation for the filters
as well. Additionally as primary backend implementation is HBase, we can design our filters
in a manner, where they closely resemble HBase Filters.



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