Hi Andreas,
By checking the code IMO currently this is limitation with in
FSAL_GLUSTER. It tries to
establish connection with glusterfs servers only using "tcp". It is easy
to fix as well.
You can raise a bug in
https://bugzilla.redhat.com/enter_bug.cgi?product=nfs-ganesha
under FSAL_GLUSTER. I don't have any hardware to test the fix. I can
either help you in
writing up fix for the issue or provide a test rpms with the fix .
Also thanks for trying out nfs-ganesha with rdma and finding about this
issue.
For the time being , if possible you can try with tcp,rdma volume to
solve the problem.
Regards,
Jiffin
On 06/01/17 22:56, Andreas Kurzac wrote:
Dear All,
i have a glusterfs pool with 3 servers with Centos7.3, Glusterfs
3.8.5, network is Infiniband.
Pacemaker/Corosync and Ganesha-NFS is installed and all seems to be
OK, no error logged.
I created a replica 3 volume with transport rdma (without tcp!).
When i mount this volume via glusterfs and do some IO, no errors are
logged and everything seems to go pretty well.
When i mount the volume via nfs and do some IO, nfs freezes immediatly
and following logs are written to
ganesha-gfapi.log:
2017-01-05 23:23:53.536526] W [MSGID: 103004]
[rdma.c:452:gf_rdma_register_arena] 0-rdma: allocation of mr failed
[2017-01-05 23:23:53.541519] W [MSGID: 103004]
[rdma.c:1463:__gf_rdma_create_read_chunks_from_vector]
0-rpc-transport/rdma: memory registration failed
(peer:10.40.1.1:49152) [Keine Berechtigung]
[2017-01-05 23:23:53.541547] W [MSGID: 103029]
[rdma.c:1558:__gf_rdma_create_read_chunks] 0-rpc-transport/rdma:
cannot create read chunks from vector entry->prog_payload
[2017-01-05 23:23:53.541553] W [MSGID: 103033]
[rdma.c:2063:__gf_rdma_ioq_churn_request] 0-rpc-transport/rdma:
creation of read chunks failed
[2017-01-05 23:23:53.541557] W [MSGID: 103040]
[rdma.c:2775:__gf_rdma_ioq_churn_entry] 0-rpc-transport/rdma: failed
to process request ioq entry to peer(10.40.1.1:49152)
[2017-01-05 23:23:53.541562] W [MSGID: 103040]
[rdma.c:2859:gf_rdma_writev] 0-vmstor1-client-0: processing ioq entry
destined to (10.40.1.1:49152) failed
[2017-01-05 23:23:53.541569] W [MSGID: 103037]
[rdma.c:3016:gf_rdma_submit_request] 0-rpc-transport/rdma: sending
request to peer (10.40.1.1:49152) failed
[…]
Some additional info:
Firewall is disabled, SELinux is disabled.
Different hardware with Centos 7.1 and the Mellanox OFED 3.4 packages
instead of the Centos Infiniband packages lead to the same results.
Just to mention: I am not trying to do NFS over RDMA, the Ganesha FSAL
is just configured to "glusterfs".
I hope someone could help me, i am running out of ideas…
Kind regards,
Andreas
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