/** Start the services common to active and standby states */
private void startCommonServices(Configuration conf) throws IOException {
startHttpServer(conf);
startLeaderElectionService();
namesystem.startCommonServices(conf);
rpcServer.start();
plugins = conf.getInstances(DFS_NAMENODE_PLUGINS_KEY, ServicePlugin.class);
for (ServicePlugin p : plugins) {
try {
p.start(this);
} catch (Throwable t) {
LOG.warn("ServicePlugin " + p + " could not be started", t);
}
}
LOG.info(getRole() + " RPC up at: " + rpcServer.getRpcAddress());
if (rpcServer.getServiceRpcAddress() != null) {
LOG.info(getRole() + " service RPC up at: " + rpcServer.getServiceRpcAddress());
}
}
/** @return NameNode service RPC address if configured, the NameNode RPC address otherwise */
public InetSocketAddress getServiceRpcAddress() {
final InetSocketAddress serviceAddr = rpcServer.getServiceRpcAddress();
return serviceAddr == null ? rpcServer.getRpcAddress() : serviceAddr;
}