Posted On: Dec 29, 2020
If a server fails then DNS continues to send requests to the unavailable machine that can waste bandwidth. This problem occurs only during startup for a Java client application. WebLogic Server caches the DNS entries and removes the unavailable ones, to prevent the client from accessing a failed server again it avoids unnecessary DNS requests with browser-based clients, It uses third-party load-balancer products such as Resonate, BigIP, Alteon, and LocalDirector that products mask multiple DNS addresses as a single address. It also provides more sophisticated load-balancing options than round-robin and keeps track of failed servers to avoid routing unnecessary requests.
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WebLogic Server monitors socket errors to check the availability of a server instance. As an example, if server instance A1 has associate degree open socket to server instance B1, and also the socket ...