Server Pool Control page content

The Server Pool Control page, as shown in Figure 4–4, displays data relevant to your current AppServer workload, and allows you to add or reduce the number of AppServers currently running.

Figure 4–4: Server Pool Control page example

For example, use this page to add agents when agent requests are high; you can add agents to the maximum number of agents that your license recognizes. Also, use this page to reduce the agent count during a lag in agent requests. Using the trim feature, you can reduce agents down to the minimum agents property setting.

The Server Pool Control page consists of the following:

The changes you make through add/trim activities can affect the data displayed in these summary tables. The Server pool summary also allows you to kill a specific server process. See the "Killing an AppServer process" section for the detailed steps.

Server pool data initial configuration section

The Server pool initial configuration section identifies AppServer broker configuration properties set in the ubroker.properties file. These values display in read-only mode.

Table 4–4 identifies and describes each field that displays in the Server pool initial configuration section.

Table 4–4: Server pool data initial configuration field definitions 
This displayed property field . . .
Identifies . . .
Initial number of servers to start
The value OpenEdge Management references when the AppServer broker starts AppServers.
Minimum servers
The minimum number of AppServers that must be simultaneously running before the AppServer broker will start additional servers. The broker strives to maintain this specified minimum. If at any time the number of servers falls below the specified minimum, the broker will automatically start the additional servers needed to maintain the minimum.
 
If you set a trim value that requires OpenEdge Management to trim the number of servers below the number specified for this field, OpenEdge Management displays a message.
Maximum servers
The maximum number of AppServer processes that can be running simultaneously. OpenEdge Management will not fulfill add requests you initiate that will exceed the specified maximum. OpenEdge Management will display a message to state this condition so that you can reconsider your request and, if necessary, initiate a new request.

Servers state section

The Servers state section provides a snapshot of the total number of AppServers currently associated with a specific server state. The state details related to agents and the number of agents reported reflect real-time data. This data can fluctuate due to changes in the AppServers' workflow and changes you initiate using the add and trim option.

Table 4–5 describes each field presented in the Servers state section.

Table 4–5: Servers state field definitions 
This server state . . .
Identifies the number of AppServers currently . . .
Active
Running.
Busy
Serving ABL client requests.
Locked
Servicing a bound connection. (This state applies to a stateless AppServer.)
Available
Available to handle broker requests.

Server pool summary section and the kill process option

The Server pool summary section provides:


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