[jira] [Updated] (FLINK-9389) Improve error message when cancelling job in state canceled via REST API

["Till Rohrmann (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-9389?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Till Rohrmann updated FLINK-9389:
---------------------------------
    Labels: starter  (was: )

> Improve error message when cancelling job in state canceled via REST API
> ------------------------------------------------------------------------
>
>                 Key: FLINK-9389
>                 URL: https://issues.apache.org/jira/browse/FLINK-9389
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / REST
>    Affects Versions: 1.5.0
>            Reporter: Ufuk Celebi
>            Priority: Minor
>              Labels: starter
>
> - Request job that has been already cancelled
> {code}
> $ curl http://localhost:8081/jobs/b577a914ecdf710d4b93a84105dea0c9
> {"jid":"b577a914ecdf710d4b93a84105dea0c9","name":"CarTopSpeedWindowingExample","isStoppable":false,"state":"CANCELED", ...omitted...}
> {code}
> - Cancel job again
> {code}
> $ curl -XPATCH http://localhost:8081/jobs/b577a914ecdf710d4b93a84105dea0c9\?mode\=cancel
> {"errors":["Job could not be found."]} (HTTP 404)
> {code}
> Since the actual job resource still exists, I think status code 404 is confusing. I think a better message should indicate that the job is already in state CANCELED.



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