Xingjun Hao created CARBONDATA-3862:

             Summary: Insert stage performance optimazation
                 Key: CARBONDATA-3862
             Project: CarbonData
          Issue Type: New Feature
            Reporter: Xingjun Hao

There are two major performance bottlenecks of insert stage.

1) Get LastModifyTime of stagefiles requires a lot of access to OBS
2) Parallelism is not supported

Which shall be optimazed.

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