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<a href="http://community.jboss.org/index.jspa" style="text-decoration: none; color: #E1E1E1">JBoss Community</a></h1>
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Re: Failover performance
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created by <a href="http://community.jboss.org/people/wdfink">Wolf-Dieter Fink</a> in <i>Performance Tuning</i> - <a href="http://community.jboss.org/message/612110#612110">View the full discussion</a>
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<div class="jive-rendered-content"><p>The EJB loadbalancing and failover works with a client proxy and a server communication.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The server communicate a shutdown or detect a full stop (e.g. complete hanging or looong full GC).</p><p>A crash, e.g. JVM cored, is also detected.</p><p>It depends on the situation how long it takes.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Fact is</p><p>- all Tx on the chrased server are not commited</p><p>- the client proxy might hung for a few millis and try the next server of its list</p><p>- the next server provide the new cluster view without the crashed server.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>So there is no measurable time for such failover in best case and only a few millis in worst.</p></div>
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<p style="margin: 0;">Reply to this message by <a href="http://community.jboss.org/message/612110#612110">going to Community</a></p>
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