First of all, I know there are several other threads on the same theme, but I was unable to find anything in those that could help me so I'll try to be very specific with my situation.
I have set up a simple UDP Client / UDP Server pair that is responsible to send data between several parallel simulations. That is, every instance of the simulator is running in a separate thread and send data on a UDP socket. In the master thread the server is running and routes the messages between the simulations.
The (for this problem) important parts of the server code looks like this:
UDPServer::UDPServer(boost::asio::io_service &m_io_service) :
m_socket(m_io_service, udp::endpoint(udp::v4(), PORT_NUMBER)),
m_endpoint(boost::asio::ip::address::from_string("127.0.0.1"), PORT_NUMBER)
{
this->start_receive();
};
void UDPServer::start_receive() {
// Set SO_REUSABLE to true
boost::asio::socket_base::reuse_address option(true);
this->m_socket.set_option(option);
// Specify what happens when a message is received (it should call the handle_receive function)
this->m_socket.async_receive_from( boost::asio::buffer(this->recv_buffer),
this->m_endpoint,
boost::bind(&UDPServer::handle_receive, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred));
};
This works fine on my windows workstation.
The thing is; I want to be able to run this on a linux cluster, which is why I compiled it and tried to run it on a cluster node. The code compiled without a hitch, but when I try to run it I get the error
bind: address already in use
I use a port number above 1024, and have verified that it is not in use by another program. And as is seen above, I also set the reuse_address
option, so I really don't know what else could be wrong.