[jboss-user] [Clustering/JBoss] - Re: clustering achieved ?
bstansberry@jboss.com
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Tue Feb 17 11:15:32 EST 2009
The load balancer (Apache) is what handles failover. The request comes into apache and it decides how to handle it. If it sees the request's session is associated with a backend server that is no longer available, Apache picks a different server (i.e. fails over). If it passes the request through to a backend server and the request fails with a recoverable problem (e.g. ConnectException connecting to the backend server), it tries a different backend server (i.e. fails over).
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