private static void setStableGossip(JChannel... channels) {
for (Channel channel : channels) {
ProtocolStack stack = channel.getProtocolStack();
STABLE stable = (STABLE) stack.findProtocol(STABLE.class);
stable.setDesiredAverageGossip(2000);
}
}
private static void changeProperties(JChannel ch) {
ch.setOpt(Channel.AUTO_RECONNECT, true);
ProtocolStack stack = ch.getProtocolStack();
GMS gms = (GMS) stack.findProtocol("GMS");
if (gms != null) {
gms.setViewBundling(true);
gms.setMaxBundlingTime(300);
gms.setPrintLocalAddr(false);
}
MERGE2 merge = (MERGE2) stack.findProtocol("MERGE2");
if (merge != null) {
merge.setMinInterval(2000);
merge.setMaxInterval(5000);
}
VIEW_SYNC sync = (VIEW_SYNC) stack.findProtocol(VIEW_SYNC.class);
if (sync != null) sync.setAverageSendInterval(5000);
NAKACK nakack = (NAKACK) stack.findProtocol(NAKACK.class);
if (nakack != null) nakack.setLogDiscardMsgs(false);
}
protected void discard(boolean flag, JChannel... channels) throws Exception {
for (JChannel ch : channels) {
ProtocolStack stack = ch.getProtocolStack();
DISCARD discard = (DISCARD) stack.findProtocol(DISCARD.class);
if (discard == null)
stack.insertProtocol(
discard = new DISCARD(), ProtocolStack.ABOVE, stack.getTransport().getClass());
discard.setDiscardAll(flag);
}
}
protected void makeUnique(Channel channel, int num, String mcast_address) throws Exception {
ProtocolStack stack = channel.getProtocolStack();
Protocol transport = stack.getTransport();
if (transport instanceof UDP) {
short mcast_port = ResourceManager.getNextMulticastPort(InetAddress.getByName(bind_addr));
((UDP) transport).setMulticastPort(mcast_port);
if (mcast_address != null) {
((UDP) transport).setMulticastAddress(InetAddress.getByName(mcast_address));
} else {
String mcast_addr = ResourceManager.getNextMulticastAddress();
((UDP) transport).setMulticastAddress(InetAddress.getByName(mcast_addr));
}
} else if (transport instanceof BasicTCP) {
List<Integer> ports =
ResourceManager.getNextTcpPorts(InetAddress.getByName(bind_addr), num);
((TP) transport).setBindPort(ports.get(0));
// ((TP) transport).setPortRange(num);
Protocol ping = stack.findProtocol(TCPPING.class);
if (ping == null)
throw new IllegalStateException(
"TCP stack must consist of TCP:TCPPING - other config are not supported");
List<String> initial_hosts =
ports
.stream()
.map(port -> String.format("%s[%d]", bind_addr, port))
.collect(Collectors.toList());
String tmp = Util.printListWithDelimiter(initial_hosts, ",", 2000, false);
List<PhysicalAddress> init_hosts = Util.parseCommaDelimitedHosts(tmp, 0);
((TCPPING) ping).setInitialHosts(init_hosts);
} else {
throw new IllegalStateException("Only UDP and TCP are supported as transport protocols");
}
}