[Gluster-users] "tcp connect to failed" messages

Iain Buchanan iainbuc at gmail.com
Thu May 30 05:33:52 UTC 2013


I'm running GlusterFS 3.3.1-ubuntu1~precise9 and I'm having some problems with the "rdma" and "tcp,rdma" options I hope someone can help me with.  

1. What does "tcp,rdma" actually do - does it let you mix both types of client?  (I did a few tests with iozone and found it gave identical performance to the "tcp".)

2. I can't get "rdma" to work, even in the simplest case with a single node.
	volume create storage transport transport rdma my_server:/data/area
	volume start storage
	mount -t glusterfs my_server:storage /mnt/storage

The last line hangs.  Looking in /var/log/glusterfs I can see the log for the volume:

[2013-05-30 06:24:19.605315] E [rdma.c:4604:tcp_connect_finish] 0-storage-client-0: tcp connect to  failed (Connection refused)
[2013-05-30 06:24:19.605713] W [rdma.c:4187:gf_rdma_disconnect] (-->/usr/sbin/glusterfs(main+0x34d) [0x7f374d38a3ed] (-->/usr/lib/libglusterfs.so.0(+0x3bd17) [0x7f374cf23d17] (-->/usr/lib/glusterfs/3.3.1/rpc-transport/rdma.so(+0x5231) [0x7f3743398231]))) 0-storage-client-0: disconnect called (peer:)
[2013-05-30 06:24:19.605763] W [rdma.c:4521:gf_rdma_handshake_pollerr] (-->/usr/sbin/glusterfs(main+0x34d) [0x7f374d38a3ed] (-->/usr/lib/libglusterfs.so.0(+0x3bd17) [0x7f374cf23d17] (-->/usr/lib/glusterfs/3.3.1/rpc-transport/rdma.so(+0x5150) [0x7f3743398150]))) 0-rpc-transport/rdma: storage-client-0: peer () disconnected, cleaning up

This block repeats every few seconds - the line "tcp connect to  failed" looks like it has lost the server name somehow?  

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