Kunal Rohitas created FLINK-34960:
-------------------------------------
Summary: NullPointerException while applying parallelism overrides
for session jobs
Key: FLINK-34960
URL: https://issues.apache.org/jira/browse/FLINK-34960
Project: Flink
Issue Type: Bug
Components: Kubernetes Operator
Affects Versions: 1.8.0
Reporter: Kunal Rohitas
While using the autoscaler for session jobs, the operator throws a
NullPointerException while trying to apply parallelism overrides, though it's
able to generate parallelism suggestion report for scaling. The versions used
here are flink-1.18.1 and flink-kubernetes-operator-1.8.0.
{code:java}
2024-03-26 08:41:21,617 o.a.f.a.JobAutoScalerImpl
[ERROR][default/clientsession-job] Error applying overrides.
java.lang.NullPointerException at
org.apache.flink.kubernetes.operator.autoscaler.KubernetesScalingRealizer.realizeParallelismOverrides(KubernetesScalingRealizer.java:52)
at
org.apache.flink.kubernetes.operator.autoscaler.KubernetesScalingRealizer.realizeParallelismOverrides(KubernetesScalingRealizer.java:40)
at
org.apache.flink.autoscaler.JobAutoScalerImpl.applyParallelismOverrides(JobAutoScalerImpl.java:161)
at
org.apache.flink.autoscaler.JobAutoScalerImpl.scale(JobAutoScalerImpl.java:111)
at
org.apache.flink.kubernetes.operator.reconciler.deployment.AbstractFlinkResourceReconciler.applyAutoscaler(AbstractFlinkResourceReconciler.java:192)
at
org.apache.flink.kubernetes.operator.reconciler.deployment.AbstractFlinkResourceReconciler.reconcile(AbstractFlinkResourceReconciler.java:139)
at
org.apache.flink.kubernetes.operator.controller.FlinkSessionJobController.reconcile(FlinkSessionJobController.java:116)
at
org.apache.flink.kubernetes.operator.controller.FlinkSessionJobController.reconcile(FlinkSessionJobController.java:53)
at
io.javaoperatorsdk.operator.processing.Controller$1.execute(Controller.java:152)
at
io.javaoperatorsdk.operator.processing.Controller$1.execute(Controller.java:110)
at
org.apache.flink.kubernetes.operator.metrics.OperatorJosdkMetrics.timeControllerExecution(OperatorJosdkMetrics.java:80)
at
io.javaoperatorsdk.operator.processing.Controller.reconcile(Controller.java:109)
at
io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.reconcileExecution(ReconciliationDispatcher.java:140)
at
io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.handleReconcile(ReconciliationDispatcher.java:121)
at
io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.handleDispatch(ReconciliationDispatcher.java:91)
at
io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.handleExecution(ReconciliationDispatcher.java:64)
at
io.javaoperatorsdk.operator.processing.event.EventProcessor$ReconcilerExecutor.run(EventProcessor.java:417)
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){code}
{code:java}
2024-03-26 08:41:21,617 o.a.f.a.JobAutoScalerImpl
[ERROR][default/clientsession-job] Error while scaling job
java.lang.NullPointerException at
org.apache.flink.kubernetes.operator.autoscaler.KubernetesScalingRealizer.realizeParallelismOverrides(KubernetesScalingRealizer.java:52)
at
org.apache.flink.kubernetes.operator.autoscaler.KubernetesScalingRealizer.realizeParallelismOverrides(KubernetesScalingRealizer.java:40)
at
org.apache.flink.autoscaler.JobAutoScalerImpl.applyParallelismOverrides(JobAutoScalerImpl.java:161)
at
org.apache.flink.autoscaler.JobAutoScalerImpl.scale(JobAutoScalerImpl.java:111)
at
org.apache.flink.kubernetes.operator.reconciler.deployment.AbstractFlinkResourceReconciler.applyAutoscaler(AbstractFlinkResourceReconciler.java:192)
at
org.apache.flink.kubernetes.operator.reconciler.deployment.AbstractFlinkResourceReconciler.reconcile(AbstractFlinkResourceReconciler.java:139)
at
org.apache.flink.kubernetes.operator.controller.FlinkSessionJobController.reconcile(FlinkSessionJobController.java:116)
at
org.apache.flink.kubernetes.operator.controller.FlinkSessionJobController.reconcile(FlinkSessionJobController.java:53)
at
io.javaoperatorsdk.operator.processing.Controller$1.execute(Controller.java:152)
at
io.javaoperatorsdk.operator.processing.Controller$1.execute(Controller.java:110)
at
org.apache.flink.kubernetes.operator.metrics.OperatorJosdkMetrics.timeControllerExecution(OperatorJosdkMetrics.java:80)
at
io.javaoperatorsdk.operator.processing.Controller.reconcile(Controller.java:109)
at
io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.reconcileExecution(ReconciliationDispatcher.java:140)
at
io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.handleReconcile(ReconciliationDispatcher.java:121)
at
io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.handleDispatch(ReconciliationDispatcher.java:91)
at
io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.handleExecution(ReconciliationDispatcher.java:64)
at
io.javaoperatorsdk.operator.processing.event.EventProcessor$ReconcilerExecutor.run(EventProcessor.java:417)
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){code}
The document suggests to use latest custom build of 1.18 or 1.19 that contains
https://issues.apache.org/jira/browse/FLINK-33534 but a NullPointerException
should never happen ?
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
