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https://issues.apache.org/jira/browse/YARN-5571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15445715#comment-15445715
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Varun Saxena commented on YARN-5571:
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bq. userId and flowId is optional as a optimization avoiding an extra call. And
flowrunid is not at all even optional.
Flow run id is required because application belongs to a specific flow run.
HBase Schema doc needs to be improved upon. Will be useful for developers who
want to contribute and understand how data is stored. As of now to know the
schema, you can refer to ***Table classes in application, flow, apptoflow and
entity packages under {{org.apache.hadoop.yarn.server.timelineservice.storage}}.
[Link to code |
https://github.com/apache/hadoop/tree/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage]
> [Atsv2] Query App REST endpoing need not to expose queryParams such
> userId/flowname/flowrunid
> ---------------------------------------------------------------------------------------------
>
> Key: YARN-5571
> URL: https://issues.apache.org/jira/browse/YARN-5571
> Project: Hadoop YARN
> Issue Type: Bug
> Components: timelinereader
> Reporter: Rohith Sharma K S
> Assignee: Rohith Sharma K S
>
> Timeline reader provides REST end point for querying app with an URL {{GET
> /ws/v2/timeline/apps/\{app id\}}} along with queryParam as an filter. But
> queryParam such as {{userId/flowname/flowrunid}} not at useful for querying
> an app with app-id. In YARN cluster, only one app-id will be exist though out
> life time. So userId/flowname/flowrunid not at all useful for the app-id REST
> empoint
> {noformat}
> @GET
> @Path("/apps/{appid}/")
> @Produces(MediaType.APPLICATION_JSON)
> public TimelineEntity getApp(
> @Context HttpServletRequest req,
> @Context HttpServletResponse res,
> @PathParam("appid") String appId,
> @QueryParam("flowname") String flowName,
> @QueryParam("flowrunid") String flowRunId,
> @QueryParam("userid") String userId,
> @QueryParam("confstoretrieve") String confsToRetrieve,
> @QueryParam("metricstoretrieve") String metricsToRetrieve,
> @QueryParam("fields") String fields,
> @QueryParam("metricslimit") String metricsLimit) {
> return getApp(req, res, null, appId, flowName, flowRunId, userId,
> confsToRetrieve, metricsToRetrieve, fields, metricsLimit);
> }
> {noformat}
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