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/
