Bugs item #633392, was opened at 2002-11-04 09:57 You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=376685&aid=633392&group_id=22866
Category: Clustering Group: v3.0 Rabbit Hole Status: Open Resolution: None Priority: 5 Submitted By: Simo Arajarvi (simo22) Assigned to: Sacha Labourey (slaboure) Summary: HANamingService uses MulticastSockets Initial Comment: HANamingService uses MulticastSocket instead of JavaGroups methods for automatic discovery. This seems to cause discovery mechanism to find HA JNDI peers beyond the intended cluster partition. See: AutomaticDiscovery -inner class of org.jboss.ha.jndi.HANamingService. OS: Win2K, Solaris JDK: 1.4 Server trace: n/a Reproduce: Start two cluster partitions (pA,pB) within same subnet. Both partitions contain a HA-JNDI bound object with same name but different implementation. if partition pA becomes unavailable, clients using it's services will resort to using pB instead of failing as expected. This issue was discovered by Scott Stark and Munir Hafez at the Seattle advanced training seminar (Oct 21- 24, 2002) ---------------------------------------------------------------------- >Comment By: Scott M Stark (starksm) Date: 2002-11-13 13:35 Message: Logged In: YES user_id=175228 The problem is not on the client. The problem is with the AutomaticDiscovery not using JG to do its discovery on the server side. If you configure a cluster to use only TCP because you are running in a network that does not have multicast enabled, the HA-JNDI service will not start because of the AutomaticDiscovery reliance on multicast. ---------------------------------------------------------------------- Comment By: Sacha Labourey (slaboure) Date: 2002-11-04 10:07 Message: Logged In: YES user_id=95900 The problem is not the fact that JG is not used to discover HA- JNDI server: we don't want any JG code on the client side. Instead we will add a new property in jndi.properties to specify which partition is looked for. It will also be possible to change the multicast address used for discovery. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=376685&aid=633392&group_id=22866 ------------------------------------------------------- This sf.net email is sponsored by: Are you worried about your web server security? Click here for a FREE Thawte Apache SSL Guide and answer your Apache SSL security needs: http://www.gothawte.com/rd523.html _______________________________________________ Jboss-development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development
