CommT- The type of information needed to commit the staged data
@Experimental public interface Committer<CommT> extends AutoCloseable
Committeris responsible for committing the data staged by the sink.
List<CommT> commit(List<CommT> committables) throws IOException
committables- A list of information needed to commit data staged by the sink.
CommTneeded to re-commit, which is needed in case we implement a "commit-with-retry" pattern.
IOException- if the commit operation fail and do not want to retry any more.
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