Steven Hu

Yes, there are some warnings in the log, but I don't know what's wrong. > 2019-03-11 14:30:51,504 WARN [RpcServer.default.FPBQ.Fifo.handler=193,queue=13,port=16020] ipc.RpcServer: (responseTooSlow): {"call":"ExecService(org.apache.hadoop.hbase.protobuf.generated.ClientProtos$CoprocessorServiceRequest)","starttimems":1552285653329,"responsesize":7327,"method":"ExecService","param":"coprocessorService=AggregationService:aggregate","processingtimems":198175,"client":"192.168.10.24:29659","queuetimems":0,"class":"HRegionServer"} > 2019-03-11 14:31:05,217 WARN [RpcServer.default.FPBQ.Fifo.handler=197,queue=17,port=16020] ipc.RpcServer: (responseTooSlow): {"call":"ExecService(org.apache.hadoop.hbase.protobuf.generated.ClientProtos$CoprocessorServiceRequest)","starttimems":1552285667533,"responsesize":12533,"method":"ExecService","param":"coprocessorService=AggregationService:aggregate","processingtimems":197684,"client":"192.168.10.24:29659","queuetimems":0,"class":"HRegionServer"}...

Thank you for your suggestions, I'll try to use aggregation in spark.

Well, if I make any progress, I'll give you feedback.