[jira] [Created] (FLINK-6762) Cannot rescale externalized incremental checkpoints

["Gyula Fora (JIRA)" <ji...@apache.org>]

Gyula Fora created FLINK-6762:
---------------------------------

             Summary: Cannot rescale externalized incremental checkpoints
                 Key: FLINK-6762
                 URL: https://issues.apache.org/jira/browse/FLINK-6762
             Project: Flink
          Issue Type: Bug
          Components: State Backends, Checkpointing
    Affects Versions: 1.3.0
            Reporter: Gyula Fora
            Priority: Critical


When a job is rescaled from an externalized incremental checkpoint, the subsequent checkpoints fail with the following error:

org.apache.flink.runtime.checkpoint.CheckpointException: Could not finalize the pending checkpoint 3205.
	at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.completePendingCheckpoint(CheckpointCoordinator.java:861)
	at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.receiveAcknowledgeMessage(CheckpointCoordinator.java:776)
	at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$org$apache$flink$runtime$jobmanager$JobManager$$handleCheckpointMessage$1.apply$mcV$sp(JobManager.scala:1462)
	at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$org$apache$flink$runtime$jobmanager$JobManager$$handleCheckpointMessage$1.apply(JobManager.scala:1461)
	at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$org$apache$flink$runtime$jobmanager$JobManager$$handleCheckpointMessage$1.apply(JobManager.scala:1461)
	at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
	at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
	at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40)
	at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397)
	at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
	at scala.concurrent.forkjoin.ForkJoinPool$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.io.IOException: Unknown implementation of StreamStateHandle: class org.apache.flink.runtime.state.PlaceholderStreamStateHandle
	at org.apache.flink.runtime.checkpoint.savepoint.SavepointV2Serializer.serializeStreamStateHandle(SavepointV2Serializer.java:484)
	at org.apache.flink.runtime.checkpoint.savepoint.SavepointV2Serializer.serializeStreamStateHandleMap(SavepointV2Serializer.java:342)
	at org.apache.flink.runtime.checkpoint.savepoint.SavepointV2Serializer.serializeKeyedStateHandle(SavepointV2Serializer.java:329)
	at org.apache.flink.runtime.checkpoint.savepoint.SavepointV2Serializer.serializeSubtaskState(SavepointV2Serializer.java:270)
	at org.apache.flink.runtime.checkpoint.savepoint.SavepointV2Serializer.serialize(SavepointV2Serializer.java:122)
	at org.apache.flink.runtime.checkpoint.savepoint.SavepointV2Serializer.serialize(SavepointV2Serializer.java:66)
	at org.apache.flink.runtime.checkpoint.savepoint.SavepointStore.storeSavepointToHandle(SavepointStore.java:199)
	at org.apache.flink.runtime.checkpoint.savepoint.SavepointStore.storeExternalizedCheckpointToHandle(SavepointStore.java:164)
	at org.apache.flink.runtime.checkpoint.PendingCheckpoint.finalizeCheckpointExternalized(PendingCheckpoint.java:286)
	at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.completePendingCheckpoint(CheckpointCoordinator.java:851)

Full log:
https://gist.github.com/gyfora/693b9a720aace843ff4570e504c4a242

Rescaling with savepoints work.



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