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https://issues.apache.org/jira/browse/YARN-6027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15859062#comment-15859062
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Rohith Sharma K S commented on YARN-6027:
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[~varun_saxena]
bq. Cant we apply PageFilter in steps in collapse mode?
Initially I had in mind to do as you suggested in code base but it is required
scan every time. Instead of scanning every time,it is better to scan once and
get scanner once. However, ResultScanner is being used for retrieving which
iterate through the keys should be fine. Connecting to next regions and other
stuff will be handled by HBase client i.e ResultScanner. And also to apply
fromId for collapsed data, first need to read all the data and apply fromid.
> Improve /flows API for more flexible filters fromid, collapse, userid
> ---------------------------------------------------------------------
>
> Key: YARN-6027
> URL: https://issues.apache.org/jira/browse/YARN-6027
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Rohith Sharma K S
> Assignee: Rohith Sharma K S
> Labels: yarn-5355-merge-blocker
> Attachments: YARN-6027-YARN-5355.0001.patch
>
>
> In YARN-5585 , fromId is supported for retrieving entities. We need similar
> filter for flows/flowRun apps and flow run and flow as well.
> Along with supporting fromId, this JIRA should also discuss following points
> * Should we throw an exception for entities/entity retrieval if duplicates
> found?
> * TimelieEntity :
> ** Should equals method also check for idPrefix?
> ** Does idPrefix is part of identifiers?
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