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<a href="http://community.jboss.org/index.jspa" style="text-decoration: none; color: #E1E1E1">Community</a></h1>
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Detection failure delay for JMS bisocket connection
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reply from <a href="http://community.jboss.org/people/ron.sigal%40jboss.com">Ron Sigal</a> in <i>JBoss Remoting</i> - <a href="http://community.jboss.org/message/535525#535525">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi Amar,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Remoting detects an apparent network problem by sending pings from the client to the server and waiting for a reply.  If the reply doesn't arrive within the configured time frame, Remoting informs JBossMessaging.  The relevant configuration parameters are</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><blockquote class="jive-quote"><p><em>               <attribute name="validatorPingPeriod" isParam="true">60000</attribute><br/>               <attribute name="validatorPingTimeout" isParam="true">30000</attribute></em></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></blockquote><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>"validatorPingPeriod" determines how often the ping is sent, and "validatorPingTimeout" determines the window within which the response must arrive.  So the ping could get sent anywhere from 0 to 60 seconds after the plug is pulled, and the problem detected anywhere from 30 to 90 seconds after the plug is pulled.  So, I can explain why the problem detection could take up to 90 seconds.  I can't explain how it could happen within 5 seconds, unless some other problem had prevented the server from sending a response to a ping that had already been sent, say 25 seconds before you pulled the plug.  Just a stab in the dark.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>-Ron</p></div>
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