I have also seen this exception:
o.a.f.k.o.o.JobStatusObserver
[ERROR][flink/f-d7681d0f-c093-5d8a-b5f5-2b66b4547bf6] Job
d0ac9da5959d8cc9a82645eeef6751a5 failed with error:
java.util.concurrent.CompletionException:
java.util.concurrent.CompletionException:
java.lang.UnsupportedOperationException: Cannot rescale the given pointwise
partitioner.
Did you change the partitioner to forward or rescale?
It may also help to add an explicit shuffle().
at
org.apache.flink.util.concurrent.FutureUtils.lambda$switchExecutor$23(FutureUtils.java:1305)
at
java.base/java.util.concurrent.CompletableFuture.uniHandle(Unknown Source)
at
java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(Unknown
Source)
at
java.base/java.util.concurrent.CompletableFuture$Completion.run(Unknown Source)
at
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.lambda$handleRunAsync$4(PekkoRpcActor.java:451)
at
org.apache.flink.runtime.concurrent.ClassLoadingUtils.runWithContextClassLoader(ClassLoadingUtils.java:68)
at
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleRunAsync(PekkoRpcActor.java:451)
at
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleRpcMessage(PekkoRpcActor.java:218)
at
org.apache.flink.runtime.rpc.pekko.FencedPekkoRpcActor.handleRpcMessage(FencedPekkoRpcActor.java:85)
at
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleMessage(PekkoRpcActor.java:168)
at
org.apache.pekko.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:33)
at
org.apache.pekko.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:29)
at scala.PartialFunction.applyOrElse(PartialFunction.scala:127)
at scala.PartialFunction.applyOrElse$(PartialFunction.scala:126)
at
org.apache.pekko.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:29)
I can’t find any information on how to interpret this. Please advise..
Cheers,
Maxim
From: Maxim Senin via user <user@flink.apache.org>
Date: Thursday, April 25, 2024 at 12:01 PM
To: Maxim Senin via user <user@flink.apache.org>
Subject: [External] Exception during autoscaling operation - Flink
1.18/Operator 1.8.0
Hi.
I already asked before but never got an answer. My observation is that the
operator, after collecting some stats, is trying to restart one of the
deployments. This includes taking a savepoint (`takeSavepointOnUpgrade: true`,
`upgradeMode: savepoint`) and “gracefully” shutting down the JobManager by
“scaling it to zero” (by setting replicas = 0 in the new generated config).
However, the deployment never comes back up, apparently, due to exception:
2024-04-25 17:20:52,920 mi.j.o.p.e.ReconciliationDispatcher
[ERROR][flink/f-d7681d0f-c093-5d8a-b5f5-2b66b4547bf6] Error during error status
handling.
org.apache.flink.kubernetes.operator.exception.StatusConflictException: Status
have been modified externally in version 50607043 Previous:
{"jobStatus":{"jobName":"autoscaling
test:attack-surface","jobId":"be93ad9b152c1f11696e971e6a638b63","state":"FINISHEDINFO\\n\"},\"mode\":\"native\"},\"resource_metadata\":…
at
org.apache.flink.kubernetes.operator.utils.StatusRecorder.replaceStatus(StatusRecorder.java:161)
at
org.apache.flink.kubernetes.operator.utils.StatusRecorder.patchAndCacheStatus(StatusRecorder.java:97)
at
org.apache.flink.kubernetes.operator.reconciler.ReconciliationUtils.toErrorStatusUpdateControl(ReconciliationUtils.java:438)
at
org.apache.flink.kubernetes.operator.controller.FlinkDeploymentController.updateErrorStatus(FlinkDeploymentController.java:209)
at
org.apache.flink.kubernetes.operator.controller.FlinkDeploymentController.updateErrorStatus(FlinkDeploymentController.java:57)
at
io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.handleErrorStatusHandler(ReconciliationDispatcher.java:194)
at
io.javaoperatorsdk.operator.processing.event.ReconciliationDispatcher.handleReconcile(ReconciliationDispatcher.java:123)
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)
2024-04-25 17:20:52,925 mi.j.o.p.e.ReconciliationDispatcher
[ERROR][flink/f-d7681d0f-c093-5d8a-b5f5-2b66b4547bf6] Error during event
processing ExecutionScope{ resource id:
ResourceID{name='f-d7681d0f-c093-5d8a-b5f5-2b66b4547bf6', namespace='flink'},
version: 50606957} failed.
org.apache.flink.kubernetes.operator.exception.ReconciliationException:
org.apache.flink.kubernetes.operator.exception.StatusConflictException: Status
have been modified externally in version 50607043 Previous:
{"jobStatus":{"jobName":"autoscaling
test:attack-surface","jobId":"be93ad9b152c1f11696e971e6a638b63","state":"FINISHED",
Caused by:
org.apache.flink.kubernetes.operator.exception.StatusConflictException: Status
have been modified externally in version 50607043 Previous:
{"jobStatus":{"jobName":"autoscaling
test:attack-surface","jobId":"be93ad9b152c1f11696e971e6a638b63","state":"FINISHED
at
org.apache.flink.kubernetes.operator.utils.StatusRecorder.replaceStatus(StatusRecorder.java:161)
at
org.apache.flink.kubernetes.operator.utils.StatusRecorder.patchAndCacheStatus(StatusRecorder.java:97)
at
org.apache.flink.kubernetes.operator.reconciler.deployment.ApplicationReconciler.deploy(ApplicationReconciler.java:175)
at
org.apache.flink.kubernetes.operator.reconciler.deployment.ApplicationReconciler.deploy(ApplicationReconciler.java:63)
at
org.apache.flink.kubernetes.operator.reconciler.deployment.AbstractJobReconciler.restoreJob(AbstractJobReconciler.java:279)
at
org.apache.flink.kubernetes.operator.reconciler.deployment.AbstractJobReconciler.reconcileSpecChange(AbstractJobReconciler.java:156)
at
org.apache.flink.kubernetes.operator.reconciler.deployment.AbstractFlinkResourceReconciler.reconcile(AbstractFlinkResourceReconciler.java:171)
at
org.apache.flink.kubernetes.operator.controller.FlinkDeploymentController.reconcile(FlinkDeploymentController.java:145)
... 13 more
How to fix this? Why is the deployment not coming back up after this exception?
Is there an configuration property to set a number of retires?
Thanks,
Maxim
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