[GitHub] [iotdb] neuyilan commented on issue #3954: Integrate Apache Ratis to help manage Raft status

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neuyilan commented on issue #3954:
URL: https://github.com/apache/iotdb/issues/3954#issuecomment-918019389


   > is linearizability really necessary for OLAP databases like time-series databases?
   
   As I see the raft is one consensus algorithm, which may do not have many relations with the linearizability, just put the post[1] for reference.
   > we currently put data from multiple storage groups into one Raft group to be executed synchronously.
   
   As far as I know, the apply function is user-defined, we can still implement a parallel apply function according to different storage groups in the one raft log.
   
   What is certain is that using a raft library will definitely limit our optimization work compared with the current implementation (mixing the raft framework and business logic), but I think the availability and correctness are far greater than the performance for now.
   [1] https://zhuanlan.zhihu.com/p/47117804


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