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Posted to dev@flink.apache.org by "Antti Kaikkonen (Jira)" <ji...@apache.org> on 2020/11/17 13:34:00 UTC
[jira] [Created] (FLINK-20192) Externalized checkpoint references a
checkpoint from a different job
Antti Kaikkonen created FLINK-20192:
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Summary: Externalized checkpoint references a checkpoint from a different job
Key: FLINK-20192
URL: https://issues.apache.org/jira/browse/FLINK-20192
Project: Flink
Issue Type: Bug
Components: API / DataStream, Runtime / Checkpointing
Affects Versions: 1.11.2
Reporter: Antti Kaikkonen
Attachments: _metadata
When I try to restore from an externalized checkpoint located at: +/home/anttkaik/flink/checkpoints/0fc94de8d94e123585b5baed6972dbe8/chk-12+ I get the following error:
{code:java}
java.lang.Exception: Exception while creating StreamOperatorStateContext. at org.apache.flink.streaming.api.operators.StreamTaskStateInitializerImpl.streamOperatorStateContext(StreamTaskStateInitializerImpl.java:204) at org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:247) at org.apache.flink.streaming.runtime.tasks.OperatorChain.initializeStateAndOpenOperators(OperatorChain.java:290) at org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$beforeInvoke$0(StreamTask.java:479) at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$1.runThrowing(StreamTaskActionExecutor.java:47) at org.apache.flink.streaming.runtime.tasks.StreamTask.beforeInvoke(StreamTask.java:475) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:528) at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:721) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:546) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.flink.util.FlinkException: Could not restore keyed state backend for FunctionGroupOperator_6b87a4870d0e21cecbbe271bd893cfcc_(2/4) from any of the 1 provided restore options. at org.apache.flink.streaming.api.operators.BackendRestorerProcedure.createAndRestore(BackendRestorerProcedure.java:135) at org.apache.flink.streaming.api.operators.StreamTaskStateInitializerImpl.keyedStatedBackend(StreamTaskStateInitializerImpl.java:317) at org.apache.flink.streaming.api.operators.StreamTaskStateInitializerImpl.streamOperatorStateContext(StreamTaskStateInitializerImpl.java:144) ... 9 more Caused by: org.apache.flink.runtime.state.BackendBuildingException: Caught unexpected exception. at org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackendBuilder.build(RocksDBKeyedStateBackendBuilder.java:329) at org.apache.flink.contrib.streaming.state.RocksDBStateBackend.createKeyedStateBackend(RocksDBStateBackend.java:535) at org.apache.flink.streaming.api.operators.StreamTaskStateInitializerImpl.lambda$keyedStatedBackend$1(StreamTaskStateInitializerImpl.java:301) at org.apache.flink.streaming.api.operators.BackendRestorerProcedure.attemptCreateAndRestore(BackendRestorerProcedure.java:142) at org.apache.flink.streaming.api.operators.BackendRestorerProcedure.createAndRestore(BackendRestorerProcedure.java:121) ... 11 more Caused by: java.io.FileNotFoundException: /home/anttkaik/flink/checkpoints/01dbaf21d7c5e8f8eabd3602e086bb89/shared/0a3c0c1d-c924-4e6d-b6ad-463a75c9fce8 (No such file or directory) at java.io.FileInputStream.open0(Native Method) at java.io.FileInputStream.open(FileInputStream.java:195) at java.io.FileInputStream.<init>(FileInputStream.java:138) at org.apache.flink.core.fs.local.LocalDataInputStream.<init>(LocalDataInputStream.java:50) at org.apache.flink.core.fs.local.LocalFileSystem.open(LocalFileSystem.java:143) at org.apache.flink.core.fs.SafetyNetWrapperFileSystem.open(SafetyNetWrapperFileSystem.java:85) at org.apache.flink.runtime.state.filesystem.FileStateHandle.openInputStream(FileStateHandle.java:69) at org.apache.flink.contrib.streaming.state.RocksDBStateDownloader.downloadDataForStateHandle(RocksDBStateDownloader.java:126) at org.apache.flink.contrib.streaming.state.RocksDBStateDownloader.lambda$createDownloadRunnables$0(RocksDBStateDownloader.java:109) at org.apache.flink.util.function.ThrowingRunnable.lambda$unchecked$0(ThrowingRunnable.java:50) at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1640) at org.apache.flink.runtime.concurrent.DirectExecutorService.execute(DirectExecutorService.java:211) at java.util.concurrent.CompletableFuture.asyncRunStage(CompletableFuture.java:1654) at java.util.concurrent.CompletableFuture.runAsync(CompletableFuture.java:1871) at org.apache.flink.contrib.streaming.state.RocksDBStateDownloader.downloadDataForAllStateHandles(RocksDBStateDownloader.java:83) at org.apache.flink.contrib.streaming.state.RocksDBStateDownloader.transferAllStateDataToDirectory(RocksDBStateDownloader.java:66) at org.apache.flink.contrib.streaming.state.restore.RocksDBIncrementalRestoreOperation.transferRemoteStateToLocalDirectory(RocksDBIncrementalRestoreOperation.java:230) at org.apache.flink.contrib.streaming.state.restore.RocksDBIncrementalRestoreOperation.restoreFromRemoteState(RocksDBIncrementalRestoreOperation.java:195) at org.apache.flink.contrib.streaming.state.restore.RocksDBIncrementalRestoreOperation.initDBWithRescaling(RocksDBIncrementalRestoreOperation.java:342) at org.apache.flink.contrib.streaming.state.restore.RocksDBIncrementalRestoreOperation.restoreWithRescaling(RocksDBIncrementalRestoreOperation.java:276) at org.apache.flink.contrib.streaming.state.restore.RocksDBIncrementalRestoreOperation.restore(RocksDBIncrementalRestoreOperation.java:153) at org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackendBuilder.build(RocksDBKeyedStateBackendBuilder.java:270) ... 15 more{code}
The job 0fc94de8d94e123585b5baed6972dbe8 was restored from an externalized checkpoint generated by +01dbaf21d7c5e8f8eabd3602e086bb89+ and after the restoration was successful and +0fc94de8d94e123585b5baed6972dbe8+ had generated new externalized checkpoints I thought it was safe to delete the checkpoints from +01dbaf21d7c5e8f8eabd3602e086bb89+ but apparently I was wrong.
I have attached the _metadata file from +/home/anttkaik/flink/checkpoints/0fc94de8d94e123585b5baed6972dbe8/chk-12+ which contains the reference to +/home/anttkaik/flink/checkpoints/01dbaf21d7c5e8f8eabd3602e086bb89/shared/0a3c0c1d-c924-4e6d-b6ad-463a75c9fce8+.
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