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https://issues.apache.org/jira/browse/YARN-4224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15056762#comment-15056762
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Wangda Tan commented on YARN-4224:
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Hi [~varun_saxena],
For your last comment:
bq. So I looked at Wangda Tan's code at YARN-3368. I see that for single record
like a single app attempt, we are extending urlForFindRecord and that takes
only a single string id as input instead of an object as is the case with
urlForQuery. In case of app attempt and containers, we can get both appid from
app attempt id, and app attempt from container so a single id would do.
That's the major reason why I asked to support flat namespace in REST API. Yes
you're correct, front JS library could support multi layer hierarchy REST API,
but it's very painful. We have to extend JS library to support it, and we need
to keep context of objects (in your case we need username/cluster-id/flow-id
when try to get flow related info). This is very painful from my experience on
writing web UI.
bq. Moreover, what do you mean by batch query ? Does that mean support for
multiple optional query parameters like filters etc. to trim down the results ?
We already have them.
Not sure if it is possible to support queries like: give me flows which users
satisfy a given regex, and begin/end time is from a range? Could you give me an
example about what does the query look like?
In addition, I'm planning to propose adding flat namespace REST APIs to RM side
as well (and keep existing REST APIs in RM unchanged for compatibility). For
example, we should be able to get container with id
{{/containers/\{container-id\}}} directly, instead of using existing
hierarchical REST API. My goal is to make RM/ATSv2 have consistent REST API
view.
Thoughts?
> Change the ATSv2 reader side REST interface to conform to current REST APIs'
> in YARN
> ------------------------------------------------------------------------------------
>
> Key: YARN-4224
> URL: https://issues.apache.org/jira/browse/YARN-4224
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Affects Versions: YARN-2928
> Reporter: Varun Saxena
> Assignee: Varun Saxena
> Attachments: YARN-4224-YARN-2928.01.patch
>
>
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