Details
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Bug
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Status: Closed
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Blocker
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Resolution: Duplicate
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1.2.0
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None
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None
Description
When I restore from a savepoint, starting the job fails when the root-folder used by the BucketingSink not yet exists. This may happen in my case, when the source for my sink has not yet emitted any messages and I did not create the folder by hand.
The complete folder structure is not required by the BucketingSink as it will create itermediate folders by itself when creating the bucket.
I suggest that this does not prevent the job from being restarted.
10/07/2016 22:50:53 Source: Kafka Consumer for X -> (Sink: HDFS for X, Sink: X)(1/1) switched to FAILED java.lang.Exception: Failed to restore state to function: Error while deleting old pending files. at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.restoreState(AbstractUdfStreamOperator.java:184) at org.apache.flink.streaming.runtime.tasks.StreamTask.restoreState(StreamTask.java:550) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:255) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:609) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.RuntimeException: Error while deleting old pending files. at org.apache.flink.streaming.connectors.fs.bucketing.BucketingSink.restoreState(BucketingSink.java:805) at org.apache.flink.streaming.connectors.fs.bucketing.BucketingSink.restoreState(BucketingSink.java:139) at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.restoreState(AbstractUdfStreamOperator.java:182) ... 4 more Caused by: java.io.FileNotFoundException: File hdfs://server:8020/1/2/3/4/flink does not exist. at org.apache.hadoop.hdfs.DistributedFileSystem$DirListingIterator.<init>(DistributedFileSystem.java:948) at org.apache.hadoop.hdfs.DistributedFileSystem$DirListingIterator.<init>(DistributedFileSystem.java:927) at org.apache.hadoop.hdfs.DistributedFileSystem$19.doCall(DistributedFileSystem.java:872) at org.apache.hadoop.hdfs.DistributedFileSystem$19.doCall(DistributedFileSystem.java:868) at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) at org.apache.hadoop.hdfs.DistributedFileSystem.listLocatedStatus(DistributedFileSystem.java:886) at org.apache.hadoop.fs.FileSystem.listLocatedStatus(FileSystem.java:1696) at org.apache.hadoop.fs.FileSystem$6.<init>(FileSystem.java:1791) at org.apache.hadoop.fs.FileSystem.listFiles(FileSystem.java:1787) at org.apache.flink.streaming.connectors.fs.bucketing.BucketingSink.restoreState(BucketingSink.java:784) ... 6 more
Attachments
Issue Links
- duplicates
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FLINK-4725 BucketingSink throws NPE while restoring state if basePath does not exist
- Closed