3.1.4 Response of user applications that use API functions

(a) Connection (user authentication)

When a user application connects to JP1/AJS3 - Manager, the application accesses the authentication server for user authentication processing. If the computer running the authentication server has not been started, or multiple authentication servers are used, there will be a corresponding increase in processing time.

In user applications, a user must be authenticated every time the application issues an API request. Therefore, the processing time becomes longer if the application issues a lot of requests.

(b) Acquiring execution schedule and execution result data of the unit

The processing at JP1/AJS3 - Manager differs according to the type of request from the user application but it mainly searches or references the statuses stored on a disk. Therefore, the processing tends to be influenced by the disk performance.

Processing takes more time when it displays a jobnet with many components and many execution generations. The calculation of execution schedule is also influenced by the CPU performance.

To increase stability of performance, you must estimate the entire load on the server, taking into account the frequency of disk access by other applications, the circumstances of CPU use, and so on.

(c) Operations on units

When a lengthy fixed-execution registration is done for a jobnet with many component elements, or the registration of a jobnet with a very large number of logs to keep setting is canceled, the processing time at JP1/AJS3 - Manager will be long. Under such conditions, the communication processing might time out at JP1/AJS3 - Manager. Consider reviewing the user application design to speed up the processing time in JP1/AJS3 - Manager by, for example, reducing the fixed registration period or setting a smaller number of logs to keep.

(d) Operations on execution agents

If operations are performed simultaneously on multiple execution agents, the processing time increases in proportion to the number of target execution agents.

(a) Processing a request from a user application

The Web Console server processes requests for authentication, unit manipulation, information acquisition, or other requests from the user application, and sends the requests to JP1/AJS3 - Manager. The processing takes time if there are frequent processing requests from the user application, or if many user applications are connected. To increase performance stability, you need to estimate the loads on the entire server machines considering the number of user applications that can be concurrently connected and CPU usage.