I am trying to execute following:

./boolbd  --start-mining=1F9hbj8w... --mining-threads=1
./boolbd --data-dir dr1 --start-mining=1F9hbj8wp... --mining-threads=1
./boolbd --data-dir dr2 --start-mining=1F9hbj8w... --mining-threads=1
./boolbd --data-dir dr3 --start-mining=1F9hbj8....  --mining-threads=1
./boolbd --data-dir dr4 --start-mining=1F9hb... --mining-threads=1

first instance works, but second do not, I am getting following error message

2014-Jul-27 01:55:55.783175 ERROR /home/klemen/boolberry-opencl/contrib/epee/include/net/abstract_tcp_server2.inl:475[bool epee::net_utils::boosted_tcp_server::init_server(uint32_t, std::string) [with t_protocol_handler = epee::levin::async_protocol_handler >; uint32_t = unsigned int; std::string = std::basic_string]]Exception at [boosted_tcp_server::init_server], what=bind: Address already in use
2014-Jul-27 01:55:55.783220 ERROR /home/klemen/boolberry-opencl/src/p2p/net_node.inl:262[bool nodetool::node_server::init(const boost::program_options::variables_map&) [with t_payload_net_handler = currency::t_currency_protocol_handler]]Failed to bind server
2014-Jul-27 01:55:55.783245 ERROR /home/klemen/boolberry-opencl/src/daemon/daemon.cpp:150[int main(int, char**)]Failed to initialize p2p server.



also setting   "thread_delay": 2000, and using 5 mining threads do not work


{
  "current_extra_message_index": 0,
  "device_index": 0,
  "difficulty": 16777215,
  "donation_decision": true,
  "donation_decision_made": false,
  "donation_descision": true,
  "donation_percent_opencl": "2.0",
  "kernel": "wild_keccak.cl",
  "kernel_type": 0,
  "platform_index": 0,
  "thread_delay": 2000,
  "work_size": 262144
}