Enable logging in Gossip Router

[niefeng]

Hi all,

I am using Gossip router in my cluster setup. Is it possible to enable some form of logging in the gossip router like observing which node join the cluster, which node left the cluster?

I start up the gossip router via the cmd below

java -cp antlr.jar:jgroups.jar:commons-logging.jar:/home/jboss/jboss-4.2.3.GA/lib/concurrent.jar org.jgroups.stack.GossipRouter -port 5555 -bindaddress 172.20.31.111

Thanks

NieFeng

[belaban]

Yes, you need to add a line to your log4j.properties file (see below) and start the GossipRouter with -Dlog4j.configuration=file:/home/user/log4j.properties:

---- log4j.properties -----

log4j.logger.org.jgroups.stack.GossipRouter=TRACE

[niefeng]

Hi Bela,

Thanks for your quick reply. I included the log4j system properties as you suggested, but there is no log generated in the directory i specified. I have changed the startup script for the gossip router as follow.

java -Dlog4j.configuration=log4j.properties -cp antlr.jar:jgroups.jar:commons-logging.jar:/home/jboss/jboss-4.2.3.GA/lib/concurrent.jar org.jgroups.stack.GossipRouter -port 5555 -bindaddress 172.20.31.111

my log4j.properties look like below

log4j.rootLogger=TRACE, H

log4j.logger.org.jgroups.stack.GossipRouter=TRACE,H

log4j.appender.H = org.apache.log4j.RollingFileAppender

log4j.appender.H.File = /home/jboss/gossipLog.log

log4j.appender.H.MaxFileSize = 100KB

log4j.appender.H.layout = org.apache.log4j.PatternLayout

log4j.appender.H.layout.ConversionPattern = %d{yyyy-MM-dd HH:mm:ss} %c{1} [%p] %m%n

The Jboss i am using is JBOSS AS 4.2.3.

Thanks for your help.

[belaban]

The -Dlog4j.configuration system property needs a URL for some obscure reason, e.g. -Dlog4j.configuration=file:/home/user/log4j.properties

[niefeng]

Hi Bela,

Thanks for the reply.

I have tried to include the URL (file:/home/jboss/log4j.properties) as you mentioned, but no log get generated as well.

Thanks

[niefeng]

It is my mistake that i do not include log4j.jar as part of the classpath. The followng is the working cmd

java -Dlog4j.configuration=file:/home/jboss/log4j.properties -cp  antlr.jar:jgroups.jar:commons-logging.jar:/home/jboss/jboss-4.2.3.GA/lib/concurrent.jar:log4j.jar org.jgroups.stack.GossipRouter -port 5555 -bindaddress 172.20.31.111

NieFeng