[jira] [Created] (TEZ-3419) Tez UI: Applications page shows error, for users with only DAG level ACL permission.

["Sreenath Somarajapuram (JIRA)" <ji...@apache.org>]

Sreenath Somarajapuram created TEZ-3419:
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             Summary: Tez UI: Applications page shows error, for users with only DAG level ACL permission.
                 Key: TEZ-3419
                 URL: https://issues.apache.org/jira/browse/TEZ-3419
             Project: Apache Tez
          Issue Type: Sub-task
            Reporter: Sreenath Somarajapuram
            Assignee: Sreenath Somarajapuram


Follow this logic and display better message:
On loading app details page, send a request to <ats-address>/ws/v1/timeline/TEZ_APPLICATION/tez_<app-id>
- If it succeed, display the details page as we do now.
- If it fails, send a request to <ats-address>/ws/v1/timeline/TEZ_DAG_ID?primaryFilter=applicationId%3A<app-id>
-- If it succeed, then we know that DAGs under the app are available and assume that the user doesn't have permission to access app level data.
--- So display a message in app details tab, something like "Data is not available. Check if you are authorized to access application data!".
--- If AHS is accessible, display application data from there in the details page.
--- Also display the DAGs tab, for the user to see DAGs under that app.
-- If it fails, display error message as we do now.




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