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https://issues.apache.org/jira/browse/YARN-5561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15446467#comment-15446467
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Rohith Sharma K S commented on YARN-5561:
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It is required to get all the apps in cluster. REST client will ask for limit
and fromId. FromId is something which filter need to support so from where to
retrieve the apps(not there now). For example , app-1 to app-10 are there. So
if fromId=app-5 then apps app-6 to app-10 should be retrieved. Is there any
other way to achieve this now?
bq. If merely list of apps within a cluster is required(without any other
information) we can probably serve this from app to flow table.
Not only app id's but also other information required. And currently the way I
see is need to get all the flows first and for each flows, retrieve apps. This
is something where client need to lot of REST calls constructing for each
flows.
> [Atsv2] : Support for ability to retrieve apps/app-attempt/containers and
> entities via REST
> -------------------------------------------------------------------------------------------
>
> Key: YARN-5561
> URL: https://issues.apache.org/jira/browse/YARN-5561
> Project: Hadoop YARN
> Issue Type: Bug
> Components: timelinereader
> Reporter: Rohith Sharma K S
> Assignee: Rohith Sharma K S
> Attachments: YARN-5561.v0.patch
>
>
> ATSv2 model lacks retrieval of {{list-of-all-apps}},
> {{list-of-all-app-attempts}} and {{list-of-all-containers-per-attempt}} via
> REST API's. And also it is required to know about all the entities in an
> applications.
> It is pretty much highly required these URLs for Web UI.
> New REST URL would be
> # GET {{/ws/v2/timeline/apps}}
> # GET {{/ws/v2/timeline/apps/\{app-id\}/appattempts}}.
> # GET
> {{/ws/v2/timeline/apps/\{app-id\}/appattempts/\{attempt-id\}/containers}}
> # GET {{/ws/v2/timeline/apps/\{app id\}/entities}} should display list of
> entities that can be queried.
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