[jira] [Created] (FLINK-16903) Add sink.parallelism for file system factory

[Shang Yuanchun (Jira)]

Jingsong Lee created FLINK-16903:
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             Summary: Add sink.parallelism for file system factory
                 Key: FLINK-16903
                 URL: https://issues.apache.org/jira/browse/FLINK-16903
             Project: Flink
          Issue Type: Sub-task
          Components: Table SQL / Runtime
            Reporter: Jingsong Lee
             Fix For: 1.11.0


A single task may be writing multiple files at the same time. If the parallelism is too high, it may lead to a large number of small files. If the parallelism is too small, the performance is not enough. This requires that the user can specify parallelism.
 * Default is the same as upstream transformation
 * Users can specify parallelism too.

|‘connector.sink.parallelism’ = ...|



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