[jira] [Commented] (YARN-5577) [Atsv2] Document object passing in infofilters with an example

["Rohith Sharma K S (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-5577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15493714#comment-15493714 ] 

Rohith Sharma K S commented on YARN-5577:
-----------------------------------------

ping [~varun_saxena]!!

> [Atsv2] Document object passing in infofilters with an example
> --------------------------------------------------------------
>
>                 Key: YARN-5577
>                 URL: https://issues.apache.org/jira/browse/YARN-5577
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: timelinereader, timelineserver
>            Reporter: Rohith Sharma K S
>            Assignee: Rohith Sharma K S
>              Labels: documentation
>         Attachments: YARN-5577.patch
>
>
> In HierarchicalTimelineEntity, setparent/addChild allows to set parent/child entities at INFO level. The key is an string and value as an object. 
> Like below, for YARN_CONTAINER entity parent entity set for application.
> {code}
> "SYSTEM_INFO_PARENT_ENTITY": {
>        "type": "YARN_APPLICATION",
>        "id": "application_1471931266232_0024"
>      }
> {code}
> But to use infofilter on entity type YARN_CONTAINER for an specific applicationId, IIUC there is no way to pass object as value in infofilter. 
> To make easier retrieval either
> # publish parent/child entity id and type as string rather that object like below
> {code}
> "SYSTEM_INFO_PARENT_ENTITY_TYPE": "YARN_APPLICATION"
> "SYSTEM_INFO_PARENT_ENTITY_ID":"application_1471931266232_0024"
> {code}
> OR
> # Add ability to provide object as filter with below format like {{infofilters=SYSTEM_INFO_PARENT_ENTITY eq ((type eq YARN_APPLICATION) AND (id eq application_1471931266232_0024))}}
> I believe 2nd approach will be well applicable for any entities. But I am not sure does HBase supports such a custom filters while scanning a table. 
> 1st approaches will be much easier to change. 



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