JingsongLi opened a new pull request #10810: [FLINK-14255][WIP][table] 
Introduce FileSystemStreamingSink
URL: https://github.com/apache/flink/pull/10810
 
 
   
   ## What is the purpose of the change
   
   Streaming version of FileSystemOutputFormat.
   Deal with exactly-once processing.
   This is basic implementation of FileSystemStreamingSink. Eagerly add 
partition to metastore.
   
   NOTE: Work in progress, for testing.
   
   ## Brief change log
   
   - Introduce FileSystemStreamingSink
   - Integrate hive to FileSystemStreamingSink
   
   ## Verifying this change
   
   FileSystemStreamingSinkTest
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): no
     - The public API, i.e., is any changed class annotated with 
`@Public(Evolving)`: no
     - The serializers: no
     - The runtime per-record code paths (performance sensitive): no
     - Anything that affects deployment or recovery: JobManager (and its 
components), Checkpointing, Yarn/Mesos, ZooKeeper: no
     - The S3 file system connector: no
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (yes)
     - If yes, how is the feature documented? JavaDocs
   

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