[Bugs] [Bug 1739320] The result (hostname) of getnameinfo for all bricks (ipv6 addresses) are the same, while they are not.

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1739320



--- Comment #9 from Amgad <amgad.saleh at nokia.com> ---
Hi Amar /GlusterFS team

I was busy addressing other development issues - back to the this IPv6 one.
In this problem, the volume is created thru heketi and failed at the
"glusterd-volume-ops.c" file when "glusterd_compare_addrinfo" is called.

In a different test (system is configured with pure IPv6), where volumes were
generated using gluster CLI, the volumes are created at different servers, but
"glustershd" failed to come up with the following 
errors:

[2019-08-28 19:11:36.645541] I [MSGID: 100030] [glusterfsd.c:2847:main]
0-/usr/sbin/glusterfs: Started running /usr/sbin/glusterfs version 6.5 (args:
/usr/sbin/glusterfs -s 2001:db8:1234::8 --volfile-id gluster/glustershd -p 
/var/run/gluster/glustershd/glustershd.pid -l /var/log/glusterfs/glustershd.log
-S /var/run/gluster/3a1e3977fd7318f2.socket --xlator-option
*replicate*.node-uuid=8e2b40a7-098c-4f0a-b323-2e764bd315f3 --process-name
glustershd --client-pid=-6)
[2019-08-28 19:11:36.646207] I [glusterfsd.c:2556:daemonize] 0-glusterfs: Pid
of current running process is 26375
[2019-08-28 19:11:36.655872] I [socket.c:902:__socket_server_bind]
0-socket.glusterfsd: closing (AF_UNIX) reuse check socket 9
[2019-08-28 19:11:36.656708] E [MSGID: 101075]
[common-utils.c:508:gf_resolve_ip6] 0-resolver: getaddrinfo failed (family:2)
(Address family for hostname not supported)
[2019-08-28 19:11:36.656730] E [name.c:258:af_inet_client_get_remote_sockaddr]
0-glusterfs: DNS resolution failed on host 2001:db8:1234::8
[2019-08-28 19:11:36.658459] I [MSGID: 101190]
[event-epoll.c:680:event_dispatch_epoll_worker] 0-epoll: Started thread with
index 0
[2019-08-28 19:11:36.658744] I [glusterfsd-mgmt.c:2443:mgmt_rpc_notify]
0-glusterfsd-mgmt: disconnected from remote-host: 2001:db8:1234::8
[2019-08-28 19:11:36.658766] I [glusterfsd-mgmt.c:2463:mgmt_rpc_notify]
0-glusterfsd-mgmt: Exhausted all volfile servers
[2019-08-28 19:11:36.658832] I [MSGID: 101190]
[event-epoll.c:680:event_dispatch_epoll_worker] 0-epoll: Started thread with
index 1
[2019-08-28 19:11:36.659376] W [glusterfsd.c:1570:cleanup_and_exit]
(-->/lib64/libgfrpc.so.0(+0xf1d3) [0x7f61e883a1d3]
-->/usr/sbin/glusterfs(+0x12fef) [0x5653bb1c9fef]
-->/usr/sbin/glusterfs(cleanup_and_exit+0x6b) [0x5653bb1c201b] ) 0-: received
signum (1), shutting down

It indcates that function "gf_resolve_ip6" in the "common-utils.c" is failing
becuase of (family:2) -- since the IP is IPv6, the family should be 10, not 2
and thus it failed as family:2 not supported.
same for "af_inet_client_get_remote_sockaddr". 

Any suggestion what could be passing the family as "2" (IPv4) rather than "10"
(IPv6)?

Regards,
Amgad

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