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Server Locators
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<p>Server locators continuously monitor server availability and server load information. The client is configured with a list of server locators and consults a server locator to request a connection to a server in the distributed system.</p>
<p>Locators provide clients with dynamic server discovery and server load balancing. They give clients connection information for the server with the least load at any given time.</p>
<p>Server locators provide these main features:</p>
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<li> <strong>Automated discovery of servers and locators</strong>. Adding and removing servers or locators is made easy as each client does not require a list of servers to be configured at the time of pool creation.</li>
<li> <strong>Client load rebalancing</strong>. Server locators give clients dynamic server information and provide server load rebalancing after servers depart or join the system.</li>
<li> <strong>High availability</strong>. When a client/server connection receives an exception, the connection is automatically failed over to another available connection in the pool. Redundancy is also provided for client subscriptions.</li>
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<p>Alternatively, you can configure a pool statically with a list of endpoints. When the pools are statically configured, a round-robin load balancing policy is used to distribute connections across the servers.</p>
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