[jira] [Created] (SPARK-35334) Spark should be more resilient to intermittent K8s flakiness

["Attila Zsolt Piros (Jira)" <ji...@apache.org>]

Attila Zsolt Piros created SPARK-35334:
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             Summary: Spark should be more resilient to intermittent K8s flakiness
                 Key: SPARK-35334
                 URL: https://issues.apache.org/jira/browse/SPARK-35334
             Project: Spark
          Issue Type: Bug
          Components: Kubernetes
    Affects Versions: 3.2.0
            Reporter: Attila Zsolt Piros
            Assignee: Attila Zsolt Piros


Internal K8s errors such as an etcdserver leader election is propagated to the API client and could cause serious issues in Spark, like:

{noformat}
Caused by: io.fabric8.kubernetes.client.KubernetesClientException: Failure executing: GET at: https://kubernetes.default.svc/api/v1/namespaces/dex-app-bl24w4z9/pods/sparkpi-10-fcd3f6781a874212-driver. Message: etcdserver: leader changed. Received status: Status(apiVersion=v1, code=500, details=null, kind=Status, message=etcdserver: leader changed, metadata=ListMeta(_continue=null, remainingItemCount=null, resourceVersion=null, selfLink=null, additionalProperties={}), reason=null, status=Failure, additionalProperties={}).
{noformat}

First I try to fix in kubernetes-client by adding retries with exponential backoff:
https://github.com/fabric8io/kubernetes-client/issues/3087

If I manage it then this will could be just version update and introducing some new configs in Spark.



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