Mady kaba [http://community.jboss.org/people/bateka] created the discussion "Is jgroup.jar needed while running jboss cache inside Jboss with default configuration?" To view the discussion, visit: http://community.jboss.org/message/533958#533958 -------------------------------------------------------------- We are having troubles using jboss cache inside jboss running the default configuration. We are seeing the following messages from two diffentents JBoss Server instances developpment and staging. Both instances are running the default config where an application including jgroup.jar lib package in a war file inside an ear File deployed on each Server. The Server should not build a cluster. But they seems  trying to discover each other. My questions are the following: 1 Is it possible to run jboss cache with the default JBoss configuration? 2 Is the jgroup.jar lib needed to run a non clustered(non cluster enabled)  JBoss Server  instance? 3 How to avoid the that the staging and the production instances build a cluster? Developmment Node 2010-03-22 20:51:12,905 WARN  [org.jgroups.protocols.pbcast.GMS] GMS flush by coordinator at 192.168.218.39:33149 failed 2010-03-22 20:51:24,969 WARN  [org.jgroups.protocols.pbcast.GMS] GMS flush by coordinator at 192.168.218.39:33149 failed 2010-03-22 20:51:37,033 WARN  [org.jgroups.protocols.pbcast.GMS] GMS flush by coordinator at 192.168.218.39:33149 failed 2010-03-22 20:51:49,097 WARN  [org.jgroups.protocols.pbcast.GMS] GMS flush by coordinator at 192.168.218.39:33149 failed Staging Node 2010-03-19 13:25:34,812 WARN  [org.jgroups.protocols.pbcast.GMS] GMS flush by coordinator at 192.168.218.39:33149 failed 2010-03-19 13:25:39,816 WARN  [org.jgroups.protocols.pbcast.GMS] 192.168.218.39:33149 failed to collect all ACKs (1) for mcasted view [192.168.218.39:33149|18] [192.168.218.39:33149, 192.168.218.41:33141] after 5000ms, missing ACKs from [192.168.218.41:33141] (received=[192.168.218.39:33149, 192.168.218.40:33145]), local_addr=192.168.218.39:33149 2010-03-19 13:35:42,761 WARN  [org.jgroups.protocols.pbcast.GMS] Merge aborted. Merge leader did not get MergeData from all subgroup coordinators [192.168.218.39:33149, 192.168.218.40:33164] Thank you -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/533958#533958] Start a new discussion in JBoss Cache at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]