[jboss-jira] [JBoss JIRA] Commented: (JGRP-628) Discovery: add cluster name to discovery request to be able to discard responses from different clusters

Discovery: add cluster name to discovery request to be able to discard responses from different clusters -------------------------------------------------------------------------------------------------------- Key: JGRP-628 URL: http://jira.jboss.com/jira/browse/JGRP-628 Project: JGroups Issue Type: Feature Request Reporter: Bela Ban Assigned To: Bela Ban Fix For: 2.7 When we have 2 groups ONE and TWO: ONE: 228.8.8.8:7500 and TWO: 228.1.2.3:7500 In some cases, they will receive each other's traffic (http://wiki.jboss.org/wiki/Wiki.jsp?page=PromiscuousTraffic). Assume ONE has members {A,B,C} and TWO has no members yet. When D (in cluster TWO) starts up and sends out a discovery request, it might also receive discovery responses from ONE (A,B,C). D might now identify A as coordinator and send a JOIN-REQ to A. However, A will discard that request as the group name of D's request is TWO rather than ONE ! Result: D's JOIN-REQ will hang ! Note that the transport (TP) does drop messages from different clusters, but this happens only after the new member has joined the group, so discovery requests/responses from different groups are *not* discarded. Tasks: - Verify that the transport-name matching algorithm in TP is correct - Confirm that - on initial discovery - discovery requests and responses are not matched