Tried that, get this error:
[root@Icarus ~]# gluster volume stop storage_ssd
Stopping volume will make its data inaccessible. Do you want to continue? (y/n) y
volume stop: storage_ssd: success
[root@Icarus ~]# gluster volume set storage_ssd config.transport tcp,rdma
volume set: failed: Commit failed on localhost. Please check the log file for more
details.
and here is the glusterd.log
[2019-05-09 21:10:45.945855] W [MSGID: 101095] [xlator.c:456:xlator_dynload] 0-xlator:
/usr/lib64/glusterfs/5.3/xlator/nfs/server.so: cannot open shared object file: No such
file or directory
[2019-05-09 21:10:46.041341] I [MSGID: 106521]
[glusterd-op-sm.c:2953:glusterd_op_set_volume] 0-management: changing transport-type for
volume storage_ssd to tcp,rdma
[2019-05-09 21:10:46.041965] W [MSGID: 101095] [xlator.c:180:xlator_volopt_dynload]
0-xlator: /usr/lib64/glusterfs/5.3/xlator/nfs/server.so: cannot open shared object file:
No such file or di
rectory
[2019-05-09 21:10:46.059356] E [MSGID: 106068]
[glusterd-volgen.c:1025:volgen_write_volfile] 0-management: failed to create volfile
[2019-05-09 21:10:46.059394] E [glusterd-volgen.c:6556:glusterd_create_volfiles]
0-management: Could not generate gfproxy client volfiles
[2019-05-09 21:10:46.059406] E [MSGID: 106068]
[glusterd-op-sm.c:3062:glusterd_op_set_volume] 0-management: Unable to create volfile for
'volume set'
[2019-05-09 21:10:46.059420] E [MSGID: 106122] [glusterd-syncop.c:1434:gd_commit_op_phase]
0-management: Commit of operation 'Volume Set' failed on localhost
[2019-05-09 21:10:46.062304] E [MSGID: 101191]
[event-epoll.c:671:event_dispatch_epoll_worker] 0-epoll: Failed to dispatch handler
[root@prometheus ~]#