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OpenEdge Management and OpenEdge Explorer: Configuration

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Advanced Features<br />

Oracle DataServer configuration <strong>and</strong> administration<br />

Table 3–5: Oracle DataServer broker properties (4 of 4)<br />

Property Description<br />

Maximum client instances The maximum number of client connections<br />

that the broker can support concurrently.<br />

The default value of 512 that is set for this<br />

parameter is high enough to ensure that the<br />

number of client connections is unlimited.<br />

Realistically, however, the system-level<br />

resources needed to support an unlimited<br />

number of clients might be exhausted before<br />

this limit is reached. If you see broker log<br />

entries that contain Exception Messages for<br />

"out of space" or "OutOfMemory" you might<br />

need to reduce the maximum number of client<br />

connections to a more reasonable value. Note,<br />

however, that lowering this value can cause<br />

some client requests to be rejected ("Exceeded<br />

Max Clients"). Configuring <strong>and</strong> starting<br />

multiple brokers to h<strong>and</strong>le higher client loads<br />

alleviates the problem.<br />

Priority weight (0-100)<br />

(dynamic property)<br />

An integer value between 0 <strong>and</strong> 100 that<br />

influences the share of the workload that the<br />

selected broker receives. The larger the value,<br />

the heavier the load that is distributed to the<br />

broker. Using the Priority weight value, the<br />

NameServer distributes client requests to the<br />

same DataServer service across all DataServer<br />

brokers. The default value is 0.<br />

You can update this property dynamically.<br />

Any changes will affect all current <strong>and</strong> new<br />

brokers.<br />

Registration retry (in seconds) After registering with its controlling<br />

NameServer, the DataServer broker<br />

periodically sends "keep-alive" messages to<br />

the NameServer to let the NameServer know<br />

that the broker is still active. The Registration<br />

retry value is the number of seconds that pass<br />

between "keep-alive" messages. The default<br />

value is 30.<br />

3–19

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