[jira] [Created] (FLINK-7676) ContinuousFileMonitoringFunction fails with GoogleHadoopFileSystem

["Ufuk Celebi (JIRA)" <ji...@apache.org>]

Ufuk Celebi created FLINK-7676:
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             Summary: ContinuousFileMonitoringFunction fails with GoogleHadoopFileSystem
                 Key: FLINK-7676
                 URL: https://issues.apache.org/jira/browse/FLINK-7676
             Project: Flink
          Issue Type: Bug
          Components: Streaming Connectors
            Reporter: Ufuk Celebi
            Priority: Minor


The following check in ContinuousFileMonitoringFunction fails when running against a file in Google Cloud Storage:
{code}
Path p = new Path(path);
FileSystem fileSystem = FileSystem.get(p.toUri());
if (fileSystem.exists(p)) {
   throw new FileNotFoundException("The provided file path " + path + " does not exist.");
}
{code}

I suspect this has something to do with consistency guarantees provided by GCS. I'm wondering if it's better to fail lazily at a later stage (e.g. when opening the stream and it doesn't work). 

After removing this check, everything works as expected. I can also run a batch WordCount job against the same file.




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