Monitor Coherence *Extend clients

Question

Hello,
Does anyone know if there's a way to monitor the clients that connect to *Extend proxy nodes? I was under the impression that all you had to do was
a) implement MemberListener and define the interface's methods
b) add a new XML <member-listener> element under the <proxy-scheme>
I've followed these steps but none of the listener methods ever get invoked. any ideas?
Thanks!

Answer 1

Hi Ioannis,
In case this is also of use... you can also have extend clients attach a MemberListener. This node leavign / left methods will be called back if the TCP connection is lost.
By default passive extend clients, i.e. those that are event driven, tend to take a long time to detect a connection has been lost. This is because TCP timeouts are around the 5 minute mark, depending on OS. If you want to detect failure quicker its worth either tweaking the OS level keep-alives or configuring client (and server) heartbeats on the proxies.
E.g.
Client side:
<pre>
<caching-schemes>
<remote-cache-scheme>
<scheme-name>blah</scheme-name>
<service-name>blah</service-name>
<initiator-config>
<tcp-initiator>
</tcp-initiator>
<outgoing-message-handler>
<heartbeat-interval>5s</heartbeat-interval>
<heartbeat-timeout>5s</heartbeat-timeout>
</outgoing-message-handler>
</initiator-config>
</remote-cache-scheme>
</caching-schemes>
</pre>
Server side:
<pre>
<proxy-scheme>
<scheme-name>blah</scheme-name>
<service-name>blah</service-name>
<acceptor-config>
<tcp-acceptor>
</tcp-acceptor>
<outgoing-message-handler>
<heartbeat-interval>5s</heartbeat-interval>
<heartbeat-timeout>4s</heartbeat-timeout>
</outgoing-message-handler>
</acceptor-config>
</proxy-scheme>
</pre>
Hope this helps,
Andy