rsocket - RDMA socket API - client unable to connect to server

Question

I have written simple client & server program using rsocket - RDMA socket API using following version of librdmacm-dev & librdmacm1 package (using Ubuntu 14.04):

librdmacm1/trusty 1.0.16-1 i386 librdmacm-dev/trusty 1.0.16-1 i386

1. When server is started, it fails in rselect() call, with following error:

   $ ./rserver 192.168.1.1 8000 rselect: Cannot allocate memory

2. Instead of rsocket APIs used Unix Socket APIs and tried to run server by LD_PRELOADing of "/usr/lib/rsocket/librspreload.so", but it failed with same error:

   $ export LD_PRELOAD=/usr/lib/rsocket/librspreload.so; ./rserver 192.168.1.1 8000 rselect: Cannot allocate memory

I didn't find any good online help on rsockets nor found any sample working code? Can some one help on resolving this?

Answer 1

My colleague saw the same problem while fiddling with rdma using rsocket preload. In his case it turned out to be a rights issue. Try running as root and see if that gets you any further.