10. The method of claim 9 , wherein, said step of starting one or more query components comprises starting all query components simultaneously when the data query system starts to run; or, before the step of starting one or more query components, the method further comprises: configuring a load balance controller, which sets a starting threshold according to a running index of the data query system; and the step of starting one or more query components comprises: the load balance controller sending a starting instruction to the query component to instruct the query component to start during a running process of the data query system; wherein, the load balance controller sends the starting instruction to the query component according to a received control command of a user, or the load balance controller monitors a running state of the data query system, and sends the starting instruction to the query component if the running index of the data query system reaches the starting threshold.
10. The method of claim 9 , wherein, said step of starting one or more query components comprises starting all query components simultaneously when the data query system starts to run; or, before the step of starting one or more query components, the method further comprises: configuring a load balance controller, which sets a starting threshold according to a running index of the data query system; and the step of starting one or more query components comprises: the load balance controller sending a starting instruction to the query component to instruct the query component to start during a running process of the data query system; wherein, the load balance controller sends the starting instruction to the query component according to a received control command of a user, or the load balance controller monitors a running state of the data query system, and sends the starting instruction to the query component if the running index of the data query system reaches the starting threshold. 13. The method of claim 10 , wherein, the client request load status is a number of the 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.