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https://issues.apache.org/jira/browse/YARN-5561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15472318#comment-15472318
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Li Lu commented on YARN-5561:
-----------------------------
OK I revisited the patch and our reader REST APIs. Right now we have 26 (!)
APIs for reader server. I tried to organize them in a way easier to understand:
{code}
0. cluster activity (2)
- /flows/
- /clusters/{clusterid}/flows/
1. (cluster - )user - flow - run - app - entity_type - entity_id sequence
1.1 hierarchical (12)
-
/clusters/{clusterid}/users/{userid}/flows/{flowname}/runs/{flowrunid}/apps/
- /clusters/{clusterid}/users/{userid}/flows/{flowname}/runs/{flowrunid}/
- /clusters/{clusterid}/users/{userid}/flows/{flowname}/runs/
- /users/{userid}/flows/{flowname}/runs/{flowrunid}/apps/
- /users/{userid}/flows/{flowname}/runs/{flowrunid}/
- /users/{userid}/flows/{flowname}/runs/
(user, flow, run information omitted since an application is unique in a
cluster)
- /clusters/{clusterid}/apps/{appid}/entities/{entitytype}/{entityid}/
- /clusters/{clusterid}/apps/{appid}/entities/{entitytype}
- /apps/{appid}/entities/{entitytype}/{entityid}/
- /apps/{appid}/entities/{entitytype}
- /clusters/{clusterid}/users/{userid}/flows/{flowname}/apps/ (looks weird,
jumping levels)
- /users/{userid}/flows/{flowname}/apps/ (looks weird, jumping levels)
1.2 uid (6)
- /flow-uid/{uid}/runs/
- /run-uid/{uid}/
- /run-uid/{uid}/apps
- /app-uid/{uid}/
- /app-uid/{uid}/entities/{entitytype} (entity type looks weird)
- /entity-uid/{uid}/
2. (cluster - )app - app_attempt - container sequence (6)
- /clusters/{clusterid}/apps/{appid}/appattempts/{appattemptid}/containers
- /clusters/{clusterid}/apps/{appid}/appattempts
- /clusters/{clusterid}/apps/{appid}/
- /apps/{appid}/appattempts/{appattemptid}/containers
- /apps/{appid}/appattempts
- /apps/{appid}/
{code}
So the new addition looks fine to me. Do we want to reorganize the code in a
way consistent with this list? Right now the code seems to be a little bit
messy. We can do it in this JIRA, or we can open a new JIRA to reorganize these
APIs and discuss the endpoints that marked as weird? Thanks!
> [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: Sub-task
> Components: timelinereader
> Reporter: Rohith Sharma K S
> Assignee: Rohith Sharma K S
> Attachments: YARN-5561.patch, 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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