static-max created FLINK-4779:
---------------------------------
Summary: Restoring from savepoint fails when BucketingSink has not
yet created folder
Key: FLINK-4779
URL: https://issues.apache.org/jira/browse/FLINK-4779
Project: Flink
Issue Type: Bug
Components: filesystem-connector
Affects Versions: 1.2.0
Reporter: static-max
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.
{code}
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
{code}
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