What is the meaning of the camera function heartbeat?
For example, after the information system has done single sign-on integration, it can keep the system's local login function in order to reduce the risk of system coupling. And then use the system "heartbeat" function to achieve the two users of the automatic switch, thus increasing the robustness of the system, to prevent the failure of the unified certification system caused by global paralysis. So what is the "heartbeat" function? The "heartbeat" function is a method of using periodic access to determine whether other system functions are normal.
In the previous case, the implementation steps are as follows: 1, in a unified authentication system to open a "heartbeat" thread, the timing of the implementation of a visit A system operation, access to the A system S interface; 2, A system to achieve an interface S, Function for each access to an access request, then record a record of access, for example: 2009-3-18 fw 3, System A also need to also open a "heartbeat" thread, not separated by a certain time, access to the interface S is done Visit the record to see if the last record of the old record logo, if not, then prove that the single point of the system has the latest "heartbeat" came, its function is no fault.
In order to ensure that the heartbeat mechanism is in contact with the monitoring center when idle, a heartbeat mechanism based on the network and the host load is to use the information parameters in the network system to establish a mechanism for sensing the current network and The load condition of the host and dynamically adjusts the heartbeat mechanism of the heartbeat transmission cycle in real time according to the load condition so as to speed up the node fault detection system when the system resources are not occupied too. The "heartbeat" function is mainly used for the joint system function Of the monitoring and to achieve some of their own functions automatically switch.
