Robotics Service Bus

Nao is the host (192.168.179.41) and a client pc (192.168.179.24).

On nao, multiple RSB streamer components are running in parallel in a single process but they should start up at the same time (probably in parallel).

open("/etc/rsb.conf", O_RDONLY)         = -1 ENOENT (No such file or directory)
open("/home/languitar/.config/rsb.conf", O_RDONLY) = 3
read(3, "[transport.spread]\nenabled = 0\n\n"..., 8191) = 222
read(3, "", 8191)                       = 0
close(3)                                = 0
open("rsb.conf", O_RDONLY)              = -1 ENOENT (No such file or directory)
open("/etc/rsb.conf", O_RDONLY)         = -1 ENOENT (No such file or directory)
open("/home/languitar/.config/rsb.conf", O_RDONLY) = 3
read(3, "[transport.spread]\nenabled = 0\n\n"..., 8191) = 222
read(3, "", 8191)                       = 0
close(3)                                = 0
open("rsb.conf", O_RDONLY)              = -1 ENOENT (No such file or directory)
times({tms_utime=1, tms_stime=0, tms_cutime=0, tms_cstime=0}) = 1435337080
mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f9233a71000
mprotect(0x7f9233a71000, 4096, PROT_NONE) = 0
clone(child_stack=0x7f9234270fb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f92342719d0, tls=0x7f9234271700, child_tidptr=0x7f92342719d0) = 30249
eventfd2(0, O_NONBLOCK|O_CLOEXEC)       = 3
epoll_create1(EPOLL_CLOEXEC)            = 4
timerfd_create(CLOCK_MONOTONIC, 0x80000 /* TFD_??? */) = 5
epoll_ctl(4, EPOLL_CTL_ADD, 3, {...})   = 0
write(3, "\1\0\0\0\0\0\0\0", 8)         = 8
epoll_ctl(4, EPOLL_CTL_ADD, 5, {...})   = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 6
epoll_ctl(4, EPOLL_CTL_ADD, 6, {...})   = 0
connect(6, {sa_family=AF_INET, sin_port=htons(4444), sin_addr=inet_addr("192.168.179.41")}, 16) = 0
recvmsg(6, 

recvmsg is hanging.

On the node being the server:

koerperlos [0] ~ $ netstat -tapnl
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        3      0 0.0.0.0:4444            0.0.0.0:*               LISTEN      3141/naoqi-bin      
tcp        0      0 127.0.0.1:4444          127.0.0.1:37871         ESTABLISHED -                   
tcp        0      0 192.168.179.41:4444     192.168.179.24:36485    ESTABLISHED -                   
tcp        0      0 192.168.179.41:4444     192.168.179.24:36484    ESTABLISHED -                   

Second entry is problematic, as all RSB-relevant parts are running in a single process and hence no local network connections should be necessary.