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https://issues.apache.org/jira/browse/YARN-6199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15890933#comment-15890933
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Varun Saxena commented on YARN-6199:
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bq. The response contains all the users flow activities data.
What I actually meant was that when you use userid filter for what I presume is
a Web UI use case, will you be using it with daterange filter? Because
otherwise we will have a full table scan. daterange would limit the scan to
some degree depending on the range specified.
I was not suggesting using existing daterange filter to retrieve user specific
records.
As you said userX may have run a flow, a week ago. I hope the use case is not
something on the lines of retrieve last 10 flows, say, executed by userX.
Because some user may have run flows even a year ago. And we cannot be doing a
humongous scan for even the default view for that user in UI.
I hope UI can be designed in a manner wherein you can show data based on a
predetermined date range(say, current day, last 3 days, etc.).
Also an option can be provided to specify a date which can be selected to query
records for other date ranges....
We can add a user column in flow activity table to restrict rows retrieved from
backend.
Whether its a merge blocker or not, depends entirely on how important it is for
you. :)
> Support for listing flows with filter userid
> --------------------------------------------
>
> Key: YARN-6199
> URL: https://issues.apache.org/jira/browse/YARN-6199
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelinereader
> Reporter: Rohith Sharma K S
> Labels: yarn-5355-merge-blocker
>
> Currently */flows* API retrieves flow entities for all the users by default.
> It is required to provide filter user i.e */flows?user=rohith* . This is
> critical filter in secured environment.
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