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Network failure problem
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created by <a href="https://community.jboss.org/people/fregg">fregg</a> in <i>JBoss Messaging</i> - <a href="https://community.jboss.org/message/808492#808492">View the full discussion</a>
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<div class="jive-rendered-content"><p> Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Our goal is to provide stable solution that will protect us from most common failures eg. one JBM node failure or network failure.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>We have clustered JBoss Messaging 1.4.8 and standalone application server JBoss 5.1.</p><p>On JBoss messaging we have clustered queue 'QueueA' deployed.</p><p>On JBoss 5.1 we have a MDB consuming from 'QueueA'.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>We tested our configuration against node failure and it works fine. </p><p>After crash of one node via hard kill or machine restart MDB is connecting to the second node and consumes messages.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>However we are puzzled by the following case: if we block the connection to one node, on the client machine, via iptables DROP we notice that MDB is hanging. </p><p>We tried with with very different bisocket and connection factories configurations but the problem remains unresolved. </p><p>Interesting thing is that the control connections to the node that is not blocked are closed immiedately after iptables block and client still tries to connect to blocked node.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Is it a known issue? Can we find somewhere proper messaging  and client configuration?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks in advance</p></div>
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