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Posted to dev@flink.apache.org by "Seth Wiesman (JIRA)" <ji...@apache.org> on 2017/04/14 18:15:41 UTC

[jira] [Created] (FLINK-6306) Sink for eventually consistent file systems

Seth Wiesman created FLINK-6306:
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             Summary: Sink for eventually consistent file systems
                 Key: FLINK-6306
                 URL: https://issues.apache.org/jira/browse/FLINK-6306
             Project: Flink
          Issue Type: New Feature
          Components: filesystem-connector
            Reporter: Seth Wiesman
            Assignee: Seth Wiesman


Currently Flink provides the BucketingSink as an exactly once method for writing out to a file system. It provides there guarantees by moving files through several stages and deleting or truncating files that get into a bad state. While this is a powerful abstraction, it causes issues with eventually consistent file systems such as Amazon's S3 where must operations (ie rename, delete, truncate) are not guaranteed to become consistent within a reasonable amount of time. Flink should provide a sink that provides exactly once writes to a file system where only PUT operations are considered consistent. 



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