[
https://issues.apache.org/jira/browse/YARN-5561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15446553#comment-15446553
]
Li Lu commented on YARN-5561:
-----------------------------
One potential problem of returning all apps in a cluster/containers in an app
attempt is that they may easily cause severe server slowness if not used
properly. In the past this became a great pain when Apache Ambari called the
default endpoint of AHS, when the total number of applications is extremely
large. I agree it is quite desirable to have the ability to "list all", but at
the same time we may want to consider restrict the number of returned entities
unless specified by the caller, or support paging, or both?
> [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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
