Hmm, this is strange. This is emitted by te datagramsocket's send() method,
when a datagram packet is too big (usually bigger than 65K).
But your message is small, the payload is *zero* bytes !
Can you do the following ? Go into org.jgroups.protocols.UDP and modify send()
(I'm assuming JGroups 2.2.7), see code below. This is already in 2.2.9
(currently in CVS). This should print out the size of the *marshalled* buffer
in case of an exception. If this doesn't help, you can always set a breakpoint
in this code.
Hope this helps !
void send(Message msg) throws Exception {
| IpAddress dest=(IpAddress)msg.getDest();
| byte[] buf=messageToBuffer(msg);
|
| try {
| doSend(buf, dest.getIpAddress(), dest.getPort());
| }
| catch(Exception ex) {
| StringBuffer sb=new StringBuffer("failed sending message to " +
dest);
| if(buf == null)
| sb.append(", null buffer");
| else
| sb.append(", length=" + buf.length + " bytes");
| Exception tmp=new Exception(sb.toString() + buf, ex);
| throw tmp;
| }
| }
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