Hi Bob
I faced the same problem and solve it using below solution :
options.add(new Inet.AbstractSocketOption() {
/**
* from file /usr/include/asm-generic/socket.h
* #define SO_REUSEPORT 15
*/
private final static int SO_REUSEPORT = 15;
private final static int SOL_SOCKET = 1;
@Override
public void beforeDatagramBind(DatagramSocket ds) {
setReusePort(ds.getChannel());
}
public void setReusePort(DatagramChannel datagramChannel) {
try {
Field fieldFd =
datagramChannel.getClass().getDeclaredField("fd");
//NoSuchFieldException
fieldFd.setAccessible(true);
FileDescriptor fd = (FileDescriptor)
fieldFd.get(datagramChannel);
//IllegalAccessException
//JDK 1.8.0_66
//Method methodSetIntOption0 =
Net.class.getDeclaredMethod("setIntOption0", FileDescriptor.class,Boolean.TYPE,
Integer.TYPE, Integer.TYPE, Integer.TYPE, Boolean.TYPE);
//JDK 1.8.0_31
Method methodSetIntOption0 =
Net.class.getDeclaredMethod("setIntOption0", FileDescriptor.class,
Boolean.TYPE, Integer.TYPE, Integer.TYPE, Integer.TYPE);
methodSetIntOption0.setAccessible(true);
//methodSetIntOption0.invoke(null, fd, false, 1,
SO_REUSEPORT, 1, true);
methodSetIntOption0.invoke(null, fd, false, SOL_SOCKET,
SO_REUSEPORT, 1);
} catch (Exception e) {
System.out.println(e.toString());
}
}
});
final ActorRef mgr = Udp.get(getContext().system()).getManager();
mgr.tell(UdpMessage.bind(getSelf(), new InetSocketAddress(host,
port), options), getSelf());
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