eG Monitoring
 

Measures reported by PepAppConnsTest

The PSSAMSRV application server process running within an application server domain is what Tuxedo refers to as a conversational server. This server process is capable of conversing with other servers by submitting requests to them, or receiving requests from them. It provides only one service, SqlAccess. This server is used to administer the process scheduler tables, and to allocate version numbers on PeopleSoft objects during development and upgrade. When a job is submitted, or when job and process scheduler statuses are updated in the process monitor, the SQL to perform those updates are submitted directly by PSSAMSRV.

By tracking connections to the PSSAMSRV application server process in a domain over time, an administrator can assess the typical load on the server process. Based on this assessment, the administrators can, if required, fine-tune the settings of the PSSAMSRV so as to enhance its request-handling capability. This is where the PepAppConnsTest helps.

This test periodically reports the current connection load on the PSSAMSRV application server process. By using this test to monitor how the load on PSSAMSRV varies with time, administrators can gauge the typical load on the PSSAMSRV application server process and can accordingly figure out whether/not additional PSSAMSRV application server process instances will be required for handling the load. Additionally, administrators can use the detailed diagnosis of this test to know which two server processes are conversing using the conversational server process in the domain.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
No_of_conns Indicates the number of conversational connections currently open on the Tuxedo server. Number This is a good indicator of the current workload of the PSSAMSRV application server process. To know the details of the current connections, use the detailed diagnosis of this test. This reveals the Originator group ID, the Original logical machine ID, Receiver group ID and logical machine ID, Data transmitted by originator and receiver, and service name. With the help of the detailed metrics, administrators can identify which originator-receiver pair is transmitting the maximum data.

If the value of this measure increases consistently, and the PSSAMSRV application server process appears to service requests slowly, it could be because enough server instances are not available to handle the heavy load.

It is mandatory that at least one instance of the PSSAMSRV application server process be started when a domain is booted. Depending upon the variations in the value of this measure over time, you may want to increase the number of instances to be started at boot time, so that the load is balanced and serviced quickly.