I tried to create a savepoint on HDFS, and got the same exception: ------------------------------------------------------------ The program finished with the following exception:
org.apache.flink.util.FlinkException: Triggering a savepoint for the job 028e392d02bd229ed08f50a2da5227e2 failed. at org.apache.flink.client.cli.CliFrontend.triggerSavepoint(CliFrontend.java:723) at org.apache.flink.client.cli.CliFrontend.lambda$savepoint$9(CliFrontend.java:701) at org.apache.flink.client.cli.CliFrontend.runClusterAction(CliFrontend.java:985) at org.apache.flink.client.cli.CliFrontend.savepoint(CliFrontend.java:698) at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1065) at org.apache.flink.client.cli.CliFrontend.lambda$main$11(CliFrontend.java:1126) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1844) at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1126) Caused by: java.util.concurrent.CompletionException: java.util.concurrent.CompletionException: java.lang.Exception: Checkpoint failed: Could not perform checkpoint 35 for operator Merge sourceA&sourceB (7/16). at org.apache.flink.runtime.jobmaster.JobMaster.lambda$triggerSavepoint$14(JobMaster.java:970) at java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:870) at java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:852) at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474) at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977) at org.apache.flink.runtime.checkpoint.PendingCheckpoint.abortWithCause(PendingCheckpoint.java:452) at org.apache.flink.runtime.checkpoint.PendingCheckpoint.abortError(PendingCheckpoint.java:447) at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.discardCheckpoint(CheckpointCoordinator.java:1258) at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.failUnacknowledgedPendingCheckpointsFor(CheckpointCoordinator.java:918) at org.apache.flink.runtime.executiongraph.ExecutionGraph.notifyExecutionChange(ExecutionGraph.java:1779) at org.apache.flink.runtime.executiongraph.ExecutionVertex.notifyStateTransition(ExecutionVertex.java:756) at org.apache.flink.runtime.executiongraph.Execution.transitionState(Execution.java:1353) at org.apache.flink.runtime.executiongraph.Execution.processFail(Execution.java:1113) at org.apache.flink.runtime.executiongraph.Execution.markFailed(Execution.java:945) at org.apache.flink.runtime.executiongraph.ExecutionGraph.updateState(ExecutionGraph.java:1576) at org.apache.flink.runtime.jobmaster.JobMaster.updateTaskExecutionState(JobMaster.java:542) at sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:247) at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:162) at org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:70) at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.onReceive(AkkaRpcActor.java:142) at org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.onReceive(FencedAkkaRpcActor.java:40) at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:165) at akka.actor.Actor$class.aroundReceive(Actor.scala:502) at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:95) at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526) at akka.actor.ActorCell.invoke(ActorCell.scala:495) at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257) at akka.dispatch.Mailbox.run(Mailbox.scala:224) at akka.dispatch.Mailbox.exec(Mailbox.scala:234) at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) Caused by: java.util.concurrent.CompletionException: java.lang.Exception: Checkpoint failed: Could not perform checkpoint 35 for operator Merge sourceA&sourceB (7/16). at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292) at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308) at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593) at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577) ... 33 more Caused by: java.lang.Exception: Checkpoint failed: Could not perform checkpoint 35 for operator Merge sourceA&sourceB (7/16). ... 30 more Caused by: java.lang.Exception: Could not perform checkpoint 35 for operator Merge sourceA&sourceB (7/16). at org.apache.flink.streaming.runtime.tasks.StreamTask.triggerCheckpointOnBarrier(StreamTask.java:595) at org.apache.flink.streaming.runtime.io.BarrierBuffer.notifyCheckpoint(BarrierBuffer.java:396) at org.apache.flink.streaming.runtime.io.BarrierBuffer.processBarrier(BarrierBuffer.java:292) at org.apache.flink.streaming.runtime.io.BarrierBuffer.getNextNonBlocked(BarrierBuffer.java:200) at org.apache.flink.streaming.runtime.io.StreamTwoInputProcessor.processInput(StreamTwoInputProcessor.java:273) at org.apache.flink.streaming.runtime.tasks.TwoInputStreamTask.run(TwoInputStreamTask.java:117) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:300) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:704) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.Exception: Could not complete snapshot 35 for operator Merge sourceA&sourceB (7/16). at org.apache.flink.streaming.api.operators.AbstractStreamOperator.snapshotState(AbstractStreamOperator.java:422) at org.apache.flink.streaming.runtime.tasks.StreamTask$CheckpointingOperation.checkpointStreamOperator(StreamTask.java:1113) at org.apache.flink.streaming.runtime.tasks.StreamTask$CheckpointingOperation.executeCheckpointing(StreamTask.java:1055) at org.apache.flink.streaming.runtime.tasks.StreamTask.checkpointState(StreamTask.java:729) at org.apache.flink.streaming.runtime.tasks.StreamTask.performCheckpoint(StreamTask.java:641) at org.apache.flink.streaming.runtime.tasks.StreamTask.triggerCheckpointOnBarrier(StreamTask.java:586) ... 8 more Caused by: java.lang.NullPointerException at org.apache.flink.contrib.streaming.state.snapshot.RocksFullSnapshotStrategy.doSnapshot(RocksFullSnapshotStrategy.java:130) at org.apache.flink.contrib.streaming.state.snapshot.RocksDBSnapshotStrategyBase.snapshot(RocksDBSnapshotStrategyBase.java:128) at org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend.snapshot(RocksDBKeyedStateBackend.java:496) at org.apache.flink.streaming.api.operators.AbstractStreamOperator.snapshotState(AbstractStreamOperator.java:407) ... 13 more -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/