[jira] [Created] (FLINK-9195) Delete non-well-defined output methods on DataStream

[Shang Yuanchun (Jira)]

Aljoscha Krettek created FLINK-9195:
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             Summary: Delete non-well-defined output methods on DataStream
                 Key: FLINK-9195
                 URL: https://issues.apache.org/jira/browse/FLINK-9195
             Project: Flink
          Issue Type: Improvement
            Reporter: Aljoscha Krettek
            Assignee: Aljoscha Krettek
             Fix For: 1.6.0


Some output methods on {{DataStream}} that write text to files are not safe to use in a streaming program as they have no consistency guarantees. They are:
 - {{writeAsText()}}
 - {{writeAsCsv()}}
 - {{writeToSocket()}}
 - {{writeUsingOutputFormat()}}

Along with those we should also delete the {{SinkFunctions}} that they use.



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