Hi Ben,<br><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Did any RDMA/Ethernet users see this Gluster error? If so do you know what caused it and how to fix? If you haven't seen it, what RPMs and configuration do you use specific to RDMA/Ethernet?<br>
<br></blockquote><div><br>We haven't tested Gluster with RDMA/Ethernet till date. If you have the setup, can you try testing with master branch code with below patches applied. (apply the patches in order).<br><br><a href="http://review.gluster.com/148">http://review.gluster.com/148</a><br>
<a href="http://review.gluster.com/149">http://review.gluster.com/149</a><br><a href="http://review.gluster.com/201">http://review.gluster.com/201</a><br><br>Let us know if it works for you with these patches.<br><br>Regards,<br>
Amar<br><br> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
[2011-11-10 10:30:20.595801] C [rdma.c:2417:rdma_connect_qp]0-rpc-transport/rdma: Failed to modify QP to RTR<br>
[2011-11-10 10:30:20.595930] E [rdma.c:4159:rdma_handshake_pollin] 0-rpc-transport/rdma: rdma.management: failed to connect with remote QP<br>
<br>
I see this when I run RDMA over Ethernet using ROCEE RPMs, but when I run over Infiniband using RHEL 6.2-, it runs fine. On the same Ethernet configuration, Gluster/TCP runs fine, NFS/RDMA runs fine as does AMQP app. But qperf and rping utilities fail in the same way. Firmware on the HCAs is not the latest, is it worth risk to upgrade?<br>
<br>
I went into debugger and found line where qperf fails, it's near line 2056 in rdma.c in qperf sources (qperf-debuginfo, I did Makefile)<br>
<br>
(gdb)<br>
2088 } else if (dev->trans == IBV_QPT_RC) {<br>
(gdb)<br>
2090 flags = IBV_QP_STATE |<br>
(gdb)<br>
2097 if (ibv_modify_qp(dev->qp, &rtr_attr, flags) != 0)<br>
(gdb)<br>
2098 error(SYS, "failed to modify QP to RTR");<br>
(gdb)<br>
<br>
Gluster fails in rdma_connect_qp() calling the same routine, but perhaps with different parameters.<br>
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</blockquote></div><br>