Pentaho Cluster: Installing JGroups

As I mentioned in the previous post I am going to attempt to make a Pentaho Cluster, based on this presentation(PDF) and outlined in this preparation post.

So the fundamental building block for this cluster is the JGroups Java libraries, so first cab off the rank is to download and install the jar files and get demo to work.

After some mishaps with my CLASSPATH I got that sorted and tested the demo using two JGroups instances running on the same node. See the picture. Drawing in one window was immediately reflected in the second window on the right.

The install.html which is part of the zipped download file was good and explained the procedure well.

So the next thing is try the JGroups clustering on two separate EC2 nodes. That is next...

Have Fun

Paul

Installing JGroups onto a EC2 node with Java already installed.

Check Java is installed

java -version

java version "1.5.0_12"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_12-b04)
Java HotSpot(TM) Client VM (build 1.5.0_12-b04, mixed mode, sharing)

Download JGroups

http://labs.jboss.com/jgroups/downloads
wget http://easynews.dl.sourceforge.net/sourceforge/javagroups/JGroups-2.3.bin.zip

Unzip and copy files to /usr/local

unzip JGroups-2.3.bin.zip -d /usr/local

Run the checker to make sure you have installed correctly

java -jar JGroups-2.3.bin/jgroups-all.jar

Version:        2.3
CVS:            $Id: Version.java,v 1.35 2006/06/11 19:15:23 belaban Exp $
History:        (see doc/history.txt for details)

Start X-window to EC2

ssh -i id_rsa-gsg-keypair -X root@yourEC2host

Check the display is set correctly

echo $DISPLAY

localhost:10.0

Run the demo twice, use & to background each command from command line.

cd /usr/local
java -cp JGroups-2.3.bin/concurrent.jar:JGroups-2.3.bin/jgroups-all.jar:JGroups-2.3.bin/commons-logging.jar org.jgroups.demos.Draw

Sep 20, 2007 7:34:29 AM org.jgroups.protocols.UDP createSockets
INFO: sockets will use interface 10.253.22.176
Sep 20, 2007 7:34:29 AM org.jgroups.protocols.UDP createSockets
INFO: socket information:
local_addr=10.253.22.176:32772, mcast_addr=228.8.8.8:45566, bind_addr=/10.253.22.176, ttl=32
sock: bound to 10.253.22.176:32772, receive buffer size=64000, send buffer size=32000
mcast_recv_sock: bound to 10.253.22.176:45566, send buffer size=64000, receive buffer size=64000
mcast_send_sock: bound to 10.253.22.176:32773, send buffer size=64000, receive buffer size=64000

-------------------------------------------------------
GMS: address is 10.253.22.176:32772
-------------------------------------------------------
** View=[10.253.22.176:32769|1] [10.253.22.176:32769, 10.253.22.176:32772]
** View=[10.253.22.176:32769|1] [10.253.22.176:32769, 10.253.22.176:32772]