I've already successfully created a Gluster cluster, but when I try to
add a new node, gluster on the new node claims it can't find the
hostname of the first node in the cluster.
I've added the hostname nfs1.lightspeed.ca to /etc/hosts like this:
root@nfs3:/home/ernied# cat /etc/hosts
127.0.0.1 localhost
192.168.1.31 nfs1.lightspeed.ca nfs1
192.168.1.32 nfs2.lightspeed.ca nfs2
127.0.1.1 nfs3.lightspeed.ca nfs3
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
I can ping the hostname:
root@nfs3:/home/ernied# ping -c 3 nfs1
PING nfs1.lightspeed.ca (192.168.1.31) 56(84) bytes of data.
64 bytes from nfs1.lightspeed.ca (192.168.1.31): icmp_seq=1 ttl=64
time=0.148 ms
64 bytes from nfs1.lightspeed.ca (192.168.1.31): icmp_seq=2 ttl=64
time=0.126 ms
64 bytes from nfs1.lightspeed.ca (192.168.1.31): icmp_seq=3 ttl=64
time=0.133 ms
--- nfs1.lightspeed.ca ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1998ms
rtt min/avg/max/mdev = 0.126/0.135/0.148/0.016 ms
I can get gluster to probe the hostname:
root@nfs3:/home/ernied# gluster peer probe nfs1
peer probe: success. Host nfs1 port 24007 already in peer list
But if I try to create the brick on the new node, it says that the host
can't be found? Um...
root@nfs3:/home/ernied# gluster volume create gv2 replica 3
nfs1.lightspeed.ca:/brick1/gv2/ nfs2.lightspeed.ca:/brick1/gv2/
nfs3.lightspeed.ca:/brick1/gv2
volume create: gv2: failed: Failed to find host nfs1.lightspeed.ca
Our logs from /var/log/glusterfs/etc-glusterfs-glusterd.vol.log:
[2016-04-06 18:19:18.107459] E [MSGID: 106452]
[glusterd-utils.c:5825:glusterd_new_brick_validate] 0-management: Failed
to find host nfs1.lightspeed.ca
[2016-04-06 18:19:18.107496] E [MSGID: 106536]
[glusterd-volume-ops.c:1364:glusterd_op_stage_create_volume]
0-management: Failed to find host nfs1.lightspeed.ca
[2016-04-06 18:19:18.107516] E [MSGID: 106301]
[glusterd-syncop.c:1281:gd_stage_op_phase] 0-management: Staging of
operation 'Volume Create' failed on localhost : Failed to find host
nfs1.lightspeed.ca
[2016-04-06 18:19:18.231864] E [MSGID: 106170]
[glusterd-handshake.c:1051:gd_validate_mgmt_hndsk_req] 0-management:
Request from peer 192.168.1.31:65530 has an entry in peerinfo, but uuid
does not match
[2016-04-06 18:19:18.231919] E [MSGID: 106170]
[glusterd-handshake.c:1060:gd_validate_mgmt_hndsk_req] 0-management:
Rejecting management handshake request from unknown peer
192.168.1.31:65530
That error about the entry in peerinfo doesn't match anything in Google
besides the source code for Gluster. My guess is that my earlier
unsuccessful attempts to add this node before v3.7.10 have created a
conflict that needs to be cleared.
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