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https://issues.apache.org/jira/browse/YARN-4074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14723678#comment-14723678
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Vrushali C commented on YARN-4074:
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bq. Should we support filtering on the basis of flow start time and probably
end time as well ?
Going forward, yes, we do need to have a timerange parameter for queries. But
for the PoC we work with what is being fetched/returned.
bq. Moreover, do we return metrics at all times for a flow run ? Or make
returning on metric field conditional ? Just confirming because then I would
not need fields as a query parameter in REST.
For the PoC we can return everything that is being fetched/ whatever is easier.
But as such, we do need filtering out of metrics and returning subsets of
metrics etc, so these query parameters would need to be worked out. We have to
think about how we can allow for filtering of metrics, but we would anyways
need a basic API that returns everything for a flow run, so I think for more
enhancements can be added in later after the PoC, what do you think?
> [timeline reader] implement support for querying for flows and flow runs
> ------------------------------------------------------------------------
>
> Key: YARN-4074
> URL: https://issues.apache.org/jira/browse/YARN-4074
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Affects Versions: YARN-2928
> Reporter: Sangjin Lee
> Assignee: Sangjin Lee
> Attachments: YARN-4074-YARN-2928.POC.001.patch,
> YARN-4074-YARN-2928.POC.002.patch
>
>
> Implement support for querying for flows and flow runs.
> We should be able to query for the most recent N flows, etc.
> This includes changes to the {{TimelineReader}} API if necessary, as well as
> implementation of the API.
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