Getting SocketTimeoutException in DatagramPacket.receive in centOS8

3155849

Hi,

To understand this issue , wrote simple socket program with DatagramPacket.receive method.

Program works fine in centOS7 but it is not working in centOS8.

Let me know if the issue specfic to centOS8?

Program snip:

int transId = sequence.incrementAndGet();

try{

ByteBuffer getBuffer = ByteBuffer.allocate(DATAGRAM_LENGTH);

byte transByte1 = (byte) (transId & 0xFF);

byte transByte2 = (byte) ((transId >> 8) & 0xFF);

buildHeader(getBuffer, transByte1, transByte2);

String getBuf = "stats";

getBuffer.put(getBuf.getBytes());

DatagramPacket getPacket = new DatagramPacket(getBuffer.array(),getBuffer.position());

getPacket.setSocketAddress(sa);

DatagramSocket socket = channel.get().socket();

socket.send(getPacket);

DatagramPacket getResult = new DatagramPacket(new byte[DATAGRAM_LENGTH], DATAGRAM_LENGTH);

socket.setSoTimeout(MEMCACHE_MONITOR_TIMEOUT);

socket.receive(getResult);

byte[] data = getResult.getData();

if(data != null){

return true;

}

}

catch (SocketTimeoutException so)

{

try {

channel.get().close();

DatagramChannel newChannel = DatagramChannel.open();

newChannel.configureBlocking(true);

channel.set(newChannel);

} catch (IOException e) {

}

System.out.println("Get Stats from socket timed out");

return false;

}

Thanks