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https://issues.apache.org/jira/browse/FLINK-27359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17526760#comment-17526760
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Yang Wang commented on FLINK-27359:
-----------------------------------
Duplicated due to bad network.
> Kubernetes operator throws NPE when testing with Flink 1.15
> -----------------------------------------------------------
>
> Key: FLINK-27359
> URL: https://issues.apache.org/jira/browse/FLINK-27359
> Project: Flink
> Issue Type: Bug
> Components: Kubernetes Operator
> Reporter: Yang Wang
> Priority: Major
> Fix For: kubernetes-operator-1.0.0
>
>
> {code:java}
> 2022-04-22 10:19:18,307 o.a.f.k.o.c.FlinkDeploymentController [WARN
> ][default/flink-example-statemachine] Attempt count: 5, last attempt: true
> 2022-04-22 10:19:18,329 i.j.o.p.e.ReconciliationDispatcher
> [ERROR][default/flink-example-statemachine] Error during event processing
> ExecutionScope{ resource id:
> CustomResourceID{name='flink-example-statemachine', namespace='default'},
> version: 4979543} failed.
> org.apache.flink.kubernetes.operator.exception.ReconciliationException:
> java.lang.NullPointerException
> at
> org.apache.flink.kubernetes.operator.controller.FlinkDeploymentController.reconcile(FlinkDeploymentController.java:110)
> at
> org.apache.flink.kubernetes.operator.controller.FlinkDeploymentController.reconcile(FlinkDeploymentController.java:53)
> at
> io.javaoperatorsdk.operator.processing.Controller$2.execute(Controller.java:101)
> at
> io.javaoperatorsdk.operator.processing.Controller$2.execute(Controller.java:76)
> at
> io.javaoperatorsdk.operator.api.monitoring.Metrics.timeControllerExecution(Metrics.java:34)
> at
> io.javaoperatorsdk.operator.processing.Controller.reconcile(Controller.java:75)
> at
> io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.reconcileExecution(ReconciliationDispatcher.java:143)
> at
> io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.handleReconcile(ReconciliationDispatcher.java:109)
> at
> io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.handleDispatch(ReconciliationDispatcher.java:74)
> at
> io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.handleExecution(ReconciliationDispatcher.java:50)
> at
> io.javaoperatorsdk.operator.processing.event.EventProcessor$ControllerExecution.run(EventProcessor.java:349)
> at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown
> Source)
> at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
> Source)
> at java.base/java.lang.Thread.run(Unknown Source)
> Caused by: java.lang.NullPointerException
> at
> org.apache.flink.kubernetes.operator.utils.FlinkUtils.lambda$deleteJobGraphInKubernetesHA$0(FlinkUtils.java:253)
> at java.base/java.util.ArrayList.forEach(Unknown Source)
> at
> org.apache.flink.kubernetes.operator.utils.FlinkUtils.deleteJobGraphInKubernetesHA(FlinkUtils.java:248)
> at
> org.apache.flink.kubernetes.operator.service.FlinkService.submitApplicationCluster(FlinkService.java:130)
> at
> org.apache.flink.kubernetes.operator.reconciler.deployment.ApplicationReconciler.deployFlinkJob(ApplicationReconciler.java:205)
> at
> org.apache.flink.kubernetes.operator.reconciler.deployment.ApplicationReconciler.restoreFromLastSavepoint(ApplicationReconciler.java:218)
> at
> org.apache.flink.kubernetes.operator.reconciler.deployment.ApplicationReconciler.reconcile(ApplicationReconciler.java:117)
> at
> org.apache.flink.kubernetes.operator.reconciler.deployment.ApplicationReconciler.reconcile(ApplicationReconciler.java:56)
> at
> org.apache.flink.kubernetes.operator.controller.FlinkDeploymentController.reconcile(FlinkDeploymentController.java:106)
> ... 13 more {code}
> The root cause is that the Kubernetes HA implementation has changed from
> 1.15. When the job is cancelled, the data of leader ConfigMap will be
> cleared.
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