Hi Yang, Upgrade procedure uses POST /jobs/:jobid/savepoints with cancel-job=true, but perhaps I hit FLINK-21028. This lead to question, if normal via API take-savepoint-and-cancel-job fails, what steps should be done outside Flink to be able to resume from savepoint with new job version? Is deleting Kubernetes Job and HA configmaps enough, or something in persisted storage should be deleted as well?
Thanks, Alexey ________________________________ From: Yang Wang <danrtsey...@gmail.com> Sent: Thursday, March 11, 2021 2:59 AM To: Alexey Trenikhun <yen...@msn.com> Cc: Flink User Mail List <user@flink.apache.org> Subject: Re: Kubernetes HA - attempting to restore from wrong (non-existing) savepoint Hi Alexey, >From your attached logs, it seems that the leader related config map is reused. Then the Flink application is recovered instead of submitting a new one. This is the root cause it is trying to recover from a wrong savepoint which is specified in your last submission. > So how to fix this? If you want to stop the application, I strongly suggest to cancel the flink job with savepoint instead of directly deleting all the K8s resources. After then, you will find that the leader related config maps will be deleted automatically after the job is cancelled. Best, Yang Alexey Trenikhun <yen...@msn.com<mailto:yen...@msn.com>> 于2021年3月10日周三 下午12:16写道： Hi Yang, The problem is re-occurred, full JM log is attached Thanks, Alexey ________________________________ From: Yang Wang <danrtsey...@gmail.com<mailto:danrtsey...@gmail.com>> Sent: Sunday, February 28, 2021 10:04 PM To: Alexey Trenikhun <yen...@msn.com<mailto:yen...@msn.com>> Cc: Flink User Mail List <user@flink.apache.org<mailto:user@flink.apache.org>> Subject: Re: Kubernetes HA - attempting to restore from wrong (non-existing) savepoint Hi Alexey, It seems that the KubernetesHAService works well since all the checkpoints have been cleaned up when the job is canceled. And we could find related logs "Found 0 checkpoints in KubernetesStateHandleStore{configMapName='gsp-00000000000000000000000000000000-jobmanager-leader'}.". However, it is a little strange that the CheckpointCoordinator is recovering from a wrong savepoint path. Could you share the full JobManager logs? One possible reason I could guess is the application cluster entrypoint is not creating a new JobGraph from the specified arguments. Best, Yang Alexey Trenikhun <yen...@msn.com<mailto:yen...@msn.com>> 于2021年2月27日周六 上午1:48写道： Hello, We have Flink job running in Kubernetes with Kuberenetes HA enabled (JM is deployed as Job, single TM as StatefulSet). We taken savepoint with cancel=true. Now when we are trying to start job using --fromSavepoint A, where is A path we got from taking savepoint (ClusterEntrypoint reports A in log), but looks like Job for some reason ignores given A and actually trying to restore from some path B (CheckpointCoordinator logs B ): {"ts":"2021-02-26T17:09:52.500Z","message":" Program Arguments:","logger_name":"org.apache.flink.runtime.entrypoint.ClusterEntrypoint","thread_name":"main","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:52.501Z","message":" --configDir","logger_name":"org.apache.flink.runtime.entrypoint.ClusterEntrypoint","thread_name":"main","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:52.501Z","message":" /opt/flink/conf","logger_name":"org.apache.flink.runtime.entrypoint.ClusterEntrypoint","thread_name":"main","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:52.501Z","message":" --fromSavepoint","logger_name":"org.apache.flink.runtime.entrypoint.ClusterEntrypoint","thread_name":"main","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:52.501Z","message":" wasbs://gsp-st...@gspstatewestus2dev.blob.core.windows.net/gsp/savepoints/savepoint-000000-e8a201008f2c<http://gsp-st...@gspstatewestus2dev.blob.core.windows.net/gsp/savepoints/savepoint-000000-e8a201008f2c>","logger_name":"org.apache.flink.runtime.entrypoint.ClusterEntrypoint","thread_name":"main","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:52.501Z","message":" --job-classname","logger_name":"org.apache.flink.runtime.entrypoint.ClusterEntrypoint","thread_name":"main","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:52.501Z","message":" com.App","logger_name":"org.apache.flink.runtime.entrypoint.ClusterEntrypoint","thread_name":"main","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:52.501Z","message":" --job-id","logger_name":"org.apache.flink.runtime.entrypoint.ClusterEntrypoint","thread_name":"main","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:52.502Z","message":" 00000000000000000000000000000000","logger_name":"org.apache.flink.runtime.entrypoint.ClusterEntrypoint","thread_name":"main","level":"INFO","level_value":20000} ... {"ts":"2021-02-26T17:09:59.176Z","message":"Recovering checkpoints from KubernetesStateHandleStore{configMapName='gsp-00000000000000000000000000000000-jobmanager-leader'}.","logger_name":"org.apache.flink.runtime.checkpoint.DefaultCompletedCheckpointStore","thread_name":"cluster-io-thread-4","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:59.181Z","message":"Found 0 checkpoints in KubernetesStateHandleStore{configMapName='gsp-00000000000000000000000000000000-jobmanager-leader'}.","logger_name":"org.apache.flink.runtime.checkpoint.DefaultCompletedCheckpointStore","thread_name":"cluster-io-thread-4","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:59.183Z","message":"All 0 checkpoints found are already downloaded.","logger_name":"org.apache.flink.runtime.checkpoint.DefaultCompletedCheckpointStore","thread_name":"cluster-io-thread-4","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:59.183Z","message":"No checkpoint found during restore.","logger_name":"org.apache.flink.runtime.checkpoint.CheckpointCoordinator","thread_name":"cluster-io-thread-4","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:59.183Z","message":"Starting job 00000000000000000000000000000000 from savepoint wasbs://gsp-st...@gspstatewestus2dev.blob.core.windows.net/gsp/savepoints/savepoint-000000-fbcd58f66685<http://gsp-st...@gspstatewestus2dev.blob.core.windows.net/gsp/savepoints/savepoint-000000-fbcd58f66685> (allowing non restored state)","logger_name":"org.apache.flink.runtime.checkpoint.CheckpointCoordinator","thread_name":"cluster-io-thread-4","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:59.191Z","message":"0.0.7+g9bb29061\n build 2021-02-21T21:13:31-0800\n tag: 0.0.0.7\n id: 0.0.0.7\n","logger_name":"com.Fsp","thread_name":"flink-akka.actor.default-dispatcher-2","level":"INFO","level_value":20000} {"ts":"2021-02-26T17:09:59.273Z","message":"Fatal error occurred in the cluster entrypoint.","logger_name":"org.apache.flink.runtime.entrypoint.ClusterEntrypoint","thread_name":"flink-akka.actor.default-dispatcher-4","level":"ERROR","level_value":40000,"stack_trace":"org.apache.flink.util.FlinkException: JobMaster for job 00000000000000000000000000000000 failed.\n\tat org.apache.flink.runtime.dispatcher.Dispatcher.jobMasterFailed(Dispatcher.java:890)\n\tat org.apache.flink.runtime.dispatcher.Dispatcher.dispatcherJobFailed(Dispatcher.java:465)\n\tat org.apache.flink.runtime.dispatcher.Dispatcher.handleDispatcherJobResult(Dispatcher.java:444)\n\tat org.apache.flink.runtime.dispatcher.Dispatcher.lambda$runJob$3(Dispatcher.java:423)\n\tat java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:836)\n\tat java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:811)\n\tat java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:456)\n\tat org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRunAsync(AkkaRpcActor.java:442)\n\tat org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:209)\n\tat org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:77)\n\tat org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:159)\n\tat akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:26)\n\tat akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:21)\n\tat scala.PartialFunction.applyOrElse(PartialFunction.scala:123)\n\tat scala.PartialFunction.applyOrElse$(PartialFunction.scala:122)\n\tat akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:21)\n\tat scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)\n\tat scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172)\n\tat scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172)\n\tat akka.actor.Actor.aroundReceive(Actor.scala:517)\n\tat akka.actor.Actor.aroundReceive$(Actor.scala:515)\n\tat akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:225)\n\tat akka.actor.ActorCell.receiveMessage(ActorCell.scala:592)\n\tat akka.actor.ActorCell.invoke(ActorCell.scala:561)\n\tat akka.dispatch.Mailbox.processMailbox(Mailbox.scala:258)\n\tat akka.dispatch.Mailbox.run(Mailbox.scala:225)\n\tat akka.dispatch.Mailbox.exec(Mailbox.scala:235)\n\tat akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)\n\tat akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)\n\tat akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)\n\tat akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)\nCaused by: org.apache.flink.runtime.client.JobInitializationException: Could not instantiate JobManager.\n\tat org.apache.flink.runtime.dispatcher.Dispatcher.lambda$createJobManagerRunner$5(Dispatcher.java:494)\n\tat java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1604)\n\tat java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)\n\tat java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)\n\tat java.lang.Thread.run(Thread.java:748)\nCaused by: java.io.FileNotFoundException: Cannot find checkpoint or savepoint file/directory 'wasbs://gsp-st...@gspstatewestus2dev.blob.core.windows.net/gsp/savepoints/savepoint-000000-fbcd58f66685<http://gsp-st...@gspstatewestus2dev.blob.core.windows.net/gsp/savepoints/savepoint-000000-fbcd58f66685>' on file system 'wasbs'.\n\tat org.apache.flink.runtime.state.filesystem.AbstractFsCheckpointStorageAccess.resolveCheckpointPointer(AbstractFsCheckpointStorageAccess.java:250)\n\tat org.apache.flink.runtime.state.filesystem.AbstractFsCheckpointStorageAccess.resolveCheckpoint(AbstractFsCheckpointStorageAccess.java:111)\n\tat org.apache.flink.runtime.checkpoint.CheckpointCoordinator.restoreSavepoint(CheckpointCoordinator.java:1632)\n\tat org.apache.flink.runtime.scheduler.SchedulerBase.tryRestoreExecutionGraphFromSavepoint(SchedulerBase.java:358)\n\tat org.apache.flink.runtime.scheduler.SchedulerBase.createAndRestoreExecutionGraph(SchedulerBase.java:288)\n\tat org.apache.flink.runtime.scheduler.SchedulerBase.<init>(SchedulerBase.java:245)\n\tat org.apache.flink.runtime.scheduler.DefaultScheduler.<init>(DefaultScheduler.java:133)\n\tat org.apache.flink.runtime.scheduler.DefaultSchedulerFactory.createInstance(DefaultSchedulerFactory.java:111)\n\tat org.apache.flink.runtime.jobmaster.JobMaster.createScheduler(JobMaster.java:345)\n\tat org.apache.flink.runtime.jobmaster.JobMaster.<init>(JobMaster.java:330)\n\tat org.apache.flink.runtime.jobmaster.factories.DefaultJobMasterServiceFactory.createJobMasterService(DefaultJobMasterServiceFactory.java:95)\n\tat org.apache.flink.runtime.jobmaster.factories.DefaultJobMasterServiceFactory.createJobMasterService(DefaultJobMasterServiceFactory.java:39)\n\tat org.apache.flink.runtime.jobmaster.JobManagerRunnerImpl.<init>(JobManagerRunnerImpl.java:162)\n\tat org.apache.flink.runtime.dispatcher.DefaultJobManagerRunnerFactory.createJobManagerRunner(DefaultJobManagerRunnerFactory.java:86)\n\tat org.apache.flink.runtime.dispatcher.Dispatcher.lambda$createJobManagerRunner$5(Dispatcher.java:478)\n\t... 4 common frames omitted\n"} Any suggestions? Thanks, Alexey
