FYI I found the answer to my question in an (oldie but goodie) post on
JINI-USERS:
http://archives.java.sun.com/cgi-bin/wa?A2=ind0005&L=JINI-USERS&D=0&T=0&P=24090
Also, it looks like GigaSpaces has come up with a more straightforward
solution:
http://www.gigaspaces.com/wiki/display/XAP7/How+to+Configure+Unicast+Discovery
Geoff.
On Sep 20, 2009, at 2:25 AM, Geoffrey Arnold wrote:
Hi All,
When employing the ServiceDiscoveryManager and unicast discovery to
build a LookupCache of ServiceRegistrars, I've noticed that it takes
~30 minutes for our ServiceDiscoverListeners to receive the
serviceRemoved event when a registrar goes away. When using
multicast discovery, the event is triggered almost immediately.
I believe that this discrepancy is due to the nature of unicast v.
multicast discovery, but I'm guessing that there is a configuration
property somewhere that I can use to decrease some Lease duration
and minimize the wait time.
Currently we are using the default configurations for our
(transient) ServiceRegistrars and our ServiceDiscoveryManager.
Thanks in advance,
Geoff.
