High server load can be caused by WebX client activity, including:
- An excessive amount of activity on WebX clients.
- An excessive number of links to WebX clients.
- Large numbers of requests from external applications via the Simple Object Access Protocol (SOAP) interface.
To determine whether WebX activity is causing a high load on the server:
- Run the Server Status Tool.
- Expand the system, then the WebX folder, then select the Links category.
- Use the Links category to determine whether there is an excessive amount of WebX activity or an inappropriate number of WebX clients:
- Examine the number of WebX links. There should be 2 or 3 links per WebX client. If there appears to be an excessive number of WebX links, contact Schneider Electric for advice.
- Examine the Long Time entry for each link. If a link has a Long Time entry that is greater than 1000 ms, the WebX clients are probably causing a high server load. Proceed to step 4.
- If there are an appropriate number of WebX links and they have the correct Long Time entries, refer back to Diagnose and Resolve the Server Load Problems.
- Reduce the load on the server that is caused by the WebX links by either:
- Stopping external applications from accessing the system via the SOAP interface. These applications are the most common web-related cause of high load on the server.
- Checking that users are not performing tasks that place an unnecessary demand on the system. For example, if a user requires information about Events within a specific time period, they should display a filtered Events List. An unfiltered Events List will place a large demand on the system.
- Upgrading the server hardware so that it can manage more links to WebX clients.