11. The method of claim 10 , wherein, the running index of the data query system is one or more of a use scale of the data query system, responsiveness to the client request, a number of the client request, an amount of calculation of the client request supported by the system, time consumption and occupied resources of a CPU for processing the request.
11. The method of claim 10 , wherein, the running index of the data query system is one or more of a use scale of the data query system, responsiveness to the client request, a number of the client request, an amount of calculation of the client request supported by the system, time consumption and occupied resources of a CPU for processing the request. 12. The method of claim 11 , wherein, the client request load status is a number of client request being processed on the query component, and the load balance rule is that the number of client request being currently processed on the query component is minimum; or, the client request load status is a processing weight of the client request on the query component, and the load balance rule is that the processing weight of the client request being currently processed on the query component is minimum.