On Wed, Mar 15, 2017 at 5:45 PM, Angel R. Gonzalez <angel.gonzalez@uam.es> wrote:
Hello, I've installed a engine server and 2 host nodes. After install the 2 nodes I've configured a nfs domain storage in the first node. After few minutes, the second host is down and I dont put it online.
The log in the engine show:
Host node2 cannot access the Storage Domain(s) nfsexport_node1 attached to the Data Center Labs. Setting Host state to Non-Operational.
The nfsexport Storage Domain Format is V4, but in the /etc/nfsmount.conf Defaultproto=tcp Defaultvers=3 Nfsvers=3
Also I've added the line NFS4_SUPPORT="no" to /etc/sysconfig/nfs file
The node1's iptables rules are:
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED ACCEPT icmp -- anywhere anywhere ACCEPT all -- anywhere anywhere ACCEPT tcp -- anywhere anywhere tcp dpt:54321 ACCEPT tcp -- anywhere anywhere tcp dpt:54322 ACCEPT tcp -- anywhere anywhere tcp dpt:sunrpc ACCEPT udp -- anywhere anywhere udp dpt:sunrpc ACCEPT tcp -- anywhere anywhere tcp dpt:ssh ACCEPT udp -- anywhere anywhere udp dpt:snmp ACCEPT tcp -- anywhere anywhere tcp dpt:websm ACCEPT tcp -- anywhere anywhere tcp dpt:16514 ACCEPT tcp -- anywhere anywhere multiport dports rockwell-csp2 ACCEPT tcp -- anywhere anywhere multiport dports rfb:6923 ACCEPT tcp -- anywhere anywhere multiport dports 49152:49216 ACCEPT tcp -- anywhere anywhere tcp dpt:nfs ACCEPT udp -- anywhere anywhere udp dpt:nfs ACCEPT tcp -- anywhere anywhere tcp dpt:mountd ACCEPT udp -- anywhere anywhere udp dpt:mountd REJECT all -- anywhere anywhere reject-with icmp-host-prohibited
And the output of showmount -e command in a terminal of node1 is:
/nfs/data *
But the output of showmount -e node1 in a terminal of node2 is
clnt_create: RPC: Port mapper failure - Unable to receive: errno 113 (No route to host)
Any help?
Sounds like a general NFS issue, nothing specific to oVirt. You might want to use normal debugging means - tcpdump, strace, google :-), etc. I think your last error is because you need the portmapper port (111) open. You should see this easily with tcpdump or strace. Also please note that it's not considered a good idea to use one of the hosts as an nfs server, although some people happily do that. See also: https://lwn.net/Articles/595652/ Best,
Thanks you in advance.
Ángel González
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