[jira] [Created] (FLINK-15791) Don't use ForkJoinPool#commonPool() for executing asynchronous operations in Fabric8FlinkKubeClient

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-15791:
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             Summary: Don't use ForkJoinPool#commonPool() for executing asynchronous operations in Fabric8FlinkKubeClient
                 Key: FLINK-15791
                 URL: https://issues.apache.org/jira/browse/FLINK-15791
             Project: Flink
          Issue Type: Sub-task
          Components: Deployment / Kubernetes
    Affects Versions: 1.10.0
            Reporter: Till Rohrmann
             Fix For: 1.11.0, 1.10.1


We should not use the {{ForkJoinPool#commonPool()}} in order to run asynchronous operations in the {{Fabric8FlinkKubeClient}} as it is done [here|https://github.com/apache/flink/blob/master/flink-kubernetes/src/main/java/org/apache/flink/kubernetes/kubeclient/Fabric8FlinkKubeClient.java#L315]. Since we don't know which other component is using this pool, it can be quite dangerous to use it as there might be congestion.

Instead, I propose to provide an explicit I/O {{Executor}} which is used for running asynchronous operations.



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