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https://issues.apache.org/jira/browse/FLINK-6412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Stefan Richter closed FLINK-6412.
---------------------------------
Resolution: Fixed
Fix Version/s: 1.3.0
Fixed as byproduct of the incremental checkpointing work.
> Stream has already been closed during job cancel
> ------------------------------------------------
>
> Key: FLINK-6412
> URL: https://issues.apache.org/jira/browse/FLINK-6412
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Affects Versions: 1.2.0
> Reporter: Andrey
> Assignee: Stefan Richter
> Fix For: 1.3.0
>
>
> Steps to reproduce:
> * create job with RocksDBStateBackend: env.setStateBackend(new
> RocksDBStateBackend(checkpointRoot));
> * run job
> * cancel job from the Web UI.
> In logs:
> {code}
> 2017-04-28 10:25:57,475 INFO org.apache.flink.runtime.taskmanager.Task
> - Source: Custom Source (1/2)
> (05a3888ed2a232f234a10775826395a0) switched from DEPLOYING to RUNNING.
> [Source: Custom Source (1/2)]
> 2017-04-28 10:25:57,476 INFO
> org.apache.flink.streaming.runtime.tasks.StreamTask - Using
> user-defined state backend: RocksDB State Backend {isInitialized=false,
> configuredDbBasePaths=null, initializedDbBasePaths=null,
> checkpointStreamBackend=File State Backend @
> file:/flink/checkpoints/flinktests}. [Map (2/2)]
> 2017-04-28 10:25:57,476 INFO
> org.apache.flink.streaming.runtime.tasks.StreamTask - Using
> user-defined state backend: RocksDB State Backend {isInitialized=false,
> configuredDbBasePaths=null, initializedDbBasePaths=null,
> checkpointStreamBackend=File State Backend @
> file:/flink/checkpoints/flinktests}. [Source: Custom Source (1/2)]
> ...
> 2017-04-28 10:26:29,793 INFO org.apache.flink.runtime.taskmanager.Task
> - Triggering cancellation of task code Source: Custom Source
> (1/2) (05a3888ed2a232f234a10775826395a0).
> [flink-akka.actor.default-dispatcher-2]
> 2017-04-28 10:26:29,794 INFO org.apache.flink.runtime.taskmanager.Task
> - Attempting to cancel task Map (2/2)
> (bdb982b6ef47fe79b6ff5b96153c921e). [flink-akka.actor.default-dispatcher-2]
> 2017-04-28 10:26:29,794 INFO org.apache.flink.runtime.taskmanager.Task
> - Map (2/2) (bdb982b6ef47fe79b6ff5b96153c921e) switched from
> RUNNING to CANCELING. [flink-akka.actor.default-dispatcher-2]
> 2017-04-28 10:26:29,796 INFO org.apache.flink.runtime.taskmanager.Task
> - Triggering cancellation of task code Map (2/2)
> (bdb982b6ef47fe79b6ff5b96153c921e). [flink-akka.actor.default-dispatcher-2]
> 2017-04-28 10:26:29,796 INFO org.apache.flink.runtime.taskmanager.Task
> - Source: Custom Source (1/2)
> (05a3888ed2a232f234a10775826395a0) switched from CANCELING to CANCELED.
> [Source: Custom Source (1/2)]
> 2017-04-28 10:26:29,797 INFO org.apache.flink.runtime.taskmanager.Task
> - Freeing task resources for Source: Custom Source (1/2)
> (05a3888ed2a232f234a10775826395a0). [Source: Custom Source (1/2)]
> 2017-04-28 10:26:29,798 INFO org.apache.flink.core.fs.FileSystem
> - Ensuring all FileSystem streams are closed for Source: Custom
> Source (1/2) [Source: Custom Source (1/2)]
> 2017-04-28 10:26:29,803 INFO
> org.apache.flink.runtime.taskmanager.TaskManager -
> Un-registering task and sending final execution state CANCELED to JobManager
> for task Source: Custom Source (05a3888ed2a232f234a10775826395a0)
> [flink-akka.actor.default-dispatcher-2]
> 2017-04-28 10:26:39,608 INFO org.apache.flink.runtime.taskmanager.Task
> - Attempting to fail task externally Map (2/2)
> (bdb982b6ef47fe79b6ff5b96153c921e). [pool-14-thread-1]
> 2017-04-28 10:26:39,608 WARN
> org.apache.flink.streaming.runtime.tasks.StreamTask - Could not
> properly clean up the async checkpoint runnable. [Canceler for Map (2/2)
> (bdb982b6ef47fe79b6ff5b96153c921e).]
> java.lang.Exception: Could not properly cancel managed keyed state future.
> at
> org.apache.flink.streaming.api.operators.OperatorSnapshotResult.cancel(OperatorSnapshotResult.java:91)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.cleanup(StreamTask.java:1010)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.close(StreamTask.java:995)
> at org.apache.flink.util.IOUtils.closeQuietly(IOUtils.java:262)
> at org.apache.flink.util.IOUtils.closeAllQuietly(IOUtils.java:251)
> at
> org.apache.flink.util.AbstractCloseableRegistry.close(AbstractCloseableRegistry.java:91)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.cancel(StreamTask.java:364)
> at
> org.apache.flink.runtime.taskmanager.Task$TaskCanceler.run(Task.java:1390)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.util.concurrent.ExecutionException: java.io.IOException:
> Stream has already been closed and discarded.
> at java.util.concurrent.FutureTask.report(FutureTask.java:122)
> at java.util.concurrent.FutureTask.get(FutureTask.java:192)
> at
> org.apache.flink.util.FutureUtil.runIfNotDoneAndGet(FutureUtil.java:40)
> at
> org.apache.flink.runtime.state.StateUtil.discardStateFuture(StateUtil.java:79)
> at
> org.apache.flink.streaming.api.operators.OperatorSnapshotResult.cancel(OperatorSnapshotResult.java:89)
> ... 8 more
> Caused by: java.io.IOException: Stream has already been closed and discarded.
> at
> org.apache.flink.runtime.state.filesystem.FsCheckpointStreamFactory$FsCheckpointStateOutputStream.closeAndGetHandle(FsCheckpointStreamFactory.java:342)
> at
> org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend$RocksDBSnapshotOperation.closeSnapshotStreamAndGetHandle(RocksDBKeyedStateBackend.java:580)
> at
> org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend$RocksDBSnapshotOperation.closeCheckpointStream(RocksDBKeyedStateBackend.java:410)
> at
> org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend$1.performOperation(RocksDBKeyedStateBackend.java:298)
> at
> org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend$1.performOperation(RocksDBKeyedStateBackend.java:277)
> at
> org.apache.flink.runtime.io.async.AbstractAsyncIOCallable.call(AbstractAsyncIOCallable.java:72)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> org.apache.flink.util.FutureUtil.runIfNotDoneAndGet(FutureUtil.java:37)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.run(StreamTask.java:915)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> ... 1 more
> 2017-04-28 10:26:39,608 INFO org.apache.flink.runtime.taskmanager.Task
> - Task Map (2/2) is already in state CANCELING
> [pool-14-thread-1]
> {code}
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