Edward Rojas created FLINK-11318:
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Summary: [Regression] StreamingFileSink can overwrite existing
files
Key: FLINK-11318
URL: https://issues.apache.org/jira/browse/FLINK-11318
Project: Flink
Issue Type: Bug
Components: filesystem-connector
Affects Versions: 1.7.1
Reporter: Edward Rojas
StreamingFileSink does not validate if a file with the same name of the new
part file already exists and this could result in overwriting a file.
The BucketingSink perform this kind of validations in the "openNewPartFile"
method here:
https://github.com/apache/flink/blob/master/flink-connectors/flink-connector-filesystem/src/main/java/org/apache/flink/streaming/connectors/fs/bucketing/BucketingSink.java#L549-L561
So this seems to be a regression an in the "old" BucketingSink this works.
This can be problematic for example when migrating a job using Bucketing to to
use the StreamingFileSink, file could be overwritten.
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