Github user tillrohrmann commented on a diff in the pull request: https://github.com/apache/flink/pull/2765#discussion_r86813824 --- Diff: flink-streaming-java/src/main/java/org/apache/flink/streaming/api/functions/source/ContinuousFileMonitoringFunction.java --- @@ -124,6 +124,9 @@ public void open(Configuration parameters) throws Exception { @Override public void run(SourceFunction.SourceContext<TimestampedFileInputSplit> context) throws Exception { FileSystem fileSystem = FileSystem.get(new URI(path)); + if (!fileSystem.exists(new Path(path))) { + throw new IOException("The provided file path " + path + " does not exist."); --- End diff -- I think we should throw an `FileNotFoundException` which better reflects the reason of the error.
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