[jira] [Created] (YUNIKORN-589) Multiple app IDs could be generated for the same app

["Chaoran Yu (Jira)" <ji...@apache.org>]

Chaoran Yu created YUNIKORN-589:
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             Summary: Multiple app IDs could be generated for the same app
                 Key: YUNIKORN-589
                 URL: https://issues.apache.org/jira/browse/YUNIKORN-589
             Project: Apache YuniKorn
          Issue Type: Bug
          Components: shim - kubernetes
    Affects Versions: 0.10
            Reporter: Chaoran Yu
         Attachments: Screen Shot 2021-03-21 at 9.11.04 AM.png

When multiple app management plugins are enabled (e.g. general and spark operator plugins), each plugin will generate its own app ID for the same app. This alone may not be a problem, but when viewing app states in the UI, it can get confusing, especially when two plugins have different opinions regarding the current state of the same application. We probably need to introduce a mechanism to optionally indicate whether a plugin is exclusive or not. If yes, then a plugin will prevent other plugins from acting on the same app. 

In the attached screenshot, both app IDs are for the same Spark job, the first generated by the Spark operator plugin, the second by the general plugin. The true state is that the app has completed, as indicated by the operator. But the general plugin has no idea, as expected. In this case, we should just show the first row. 

Maybe this is mostly just a UI issue. But in the k8s shim, we also need a way to tell that they are the same thing.



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