Because if i will restart JBoss in Solaris it should be part of the group and
act as secondary node. In my case JBoss acts alone as Master node. I tried also
the TopologyMonitorService configured from his xml but with no luck
Is it possible to get an example of how to register an HAMBean in order to
receive Topology notifications?
This is what i did so far. It works but not all the times.
| public class ClusterNodeListenerTim
| extends TopologyMonitorService //org.jboss.system.ServiceMBeanSupport
| implements ClusterNodeListenerTimMBean,
|
org.jboss.ha.framework.interfaces.HAPartition.AsynchHAMembershipListener
|
//org.jboss.ha.framework.interfaces.HAPartition.HAMembershipListener
| {
| //attributes ------------------------------------------------
| final static Logger log =
Logger.getLogger(ClusterNodeListenerTim.class);
| private String partitionName =
ServerConfigUtil.getDefaultPartitionName();
| private HAPartition partition;
| private String hostname;
| // Constructors -------------------------------------------------
| /**
| * @jmx.managed-constructor
| **/
| public ClusterNodeListenerTim(){
| super();
| }
|
|
|
|
| // ServiceMBeanSupport overrides --------------------------------
|
| public void createService()
| throws Exception
| {
|
| InitialContext ctx = new InitialContext();
| String partitionJndiName = "/HAPartition/" + partitionName;
| partition = (HAPartition) ctx.lookup(partitionJndiName);
| // Register as a listener of cluster membership changes
| partition.registerMembershipListener(this);
| log.info("Registered as MembershipListener");
| try
| {
| hostname = InetAddress.getLocalHost().getHostName();
| }
| catch(IOException e)
| {
| log.warn("Failed to lookup local hostname", e);
| hostname = "<unknown>";
| }
| log.info("SNMP trap.... create "+ hostname+ ",
partitionName:"+partitionName);
| }
|
| public void destroyService()
| {
| log.info("SNMP trap.... destroying"+ hostname);
| partition.unregisterMembershipListener(this);
| }
|
|
|
| public void membershipChanged(Vector deadMembers, Vector newMembers,
Vector allMembers)
| {
|
| if(deadMembers.size() != 0){
|
log.info("======================================================================");
| log.fatal("*******Dead members: " + deadMembers.size() + " (" +
deadMembers + ")");
|
log.info("======================================================================");
|
| //log.info("*******New Members : " + newMembers.size() + " (" +
newMembers + ")");
| //log.info("*******All Members : " + allMembers.size() + " (" +
allMembers + ")");
| }
| super.membershipChanged(deadMembers, newMembers, allMembers);
| }
|
|
|
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