Il giorno 19/lug/2012, alle ore 09:55, Alessandro Tagliapietra ha scritto: Il giorno 19/lug/2012, alle ore 09:40, Alessandro Tagliapietra ha scritto: Il giorno 19/lug/2012, alle ore 00:52, Steven Dake ha scritto: On 07/18/2012 06:51 AM, Alessandro Tagliapietra wrote: Hi Steve,
the problem is not that it's not listening on the correct interface, as lsof shows
corosync 1485 root 9u IPv4 14890 0t0 UDP 226.94.1.1:5405
corosync 1485 root 10u IPv4 14891 0t0 UDP server1:5404
corosync 1485 root 11u IPv4 14892 0t0 UDP server1:5405
where server1 is 10.8.0.1, which is correct because it's the eth1 address.
The problem is that for some reason, the packets it sends to eth1 has as source ip the ip of eth0, which is the public internet connected interface, so like:
15:44:34.135411 IP 5.9.x.x.5404 > 226.94.1.1.5405: UDP, length 82
15:44:34.238762 IP 5.9.x.x.5404 > 226.94.1.1.5405: UDP, length 82
which is wrong. my ip r is this:
default via 5.9.x.x dev eth0 metric 100
5.9.x.x/27 via 5.9.x.x dev eth0
5.9.x.x/27 dev eth0 proto kernel scope link src 5.9.x.x
10.0.0.0/16 dev eth2 proto kernel scope link src 10.0.0.1
10.8.0.0/16 dev eth1 proto kernel scope link src 10.8.0.1
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
As you can see packets to eth1 should have 10.8.0.1 as source, not eth0 ip.
Odd - Are you using udpu mode? Which version? Can you subscribe to the corosync list and we can follow-up there?
When starting this discussion i was using ubuntu 12.04 repositories so 1.4.2, today i've installed 2.0.1, i've added corosync mailing list in cc. I have to specify that this problem happens only when i've installed nova network on both nodes (i'm using multi-host).
I've tried with udpu mode specifying the nodelist and it works fine. I'm going to switch back to 1.4.2 to use regular ubuntu packages and updates and see if that works too.
An update, i've removed eth2 (which was just a virtual interface) and set back flat_interface to eth1, now after a reboot i've got the same issue as before, packets are sent using public ip, but if a do a corosync restart after loggin in it works normally. Maybe it needs some delay to work?
Regards
Regards Let me paste some configs:
If you need any other things just ask.
Btw, i'm going to try with udpu now.
Regards http://lists.corosync.org/mailman/listinfo/discussthanks -steve Regards
Il giorno 18/lug/2012, alle ore 15:18, Steven Dake ha scritto:
On 07/18/2012 03:50 AM, Alessandro Tagliapietra wrote:
Hello,
i've 2 machines, running ubuntu 12.04, i've installed corosync +
pacemaker and it was working fine.
Corosync is using eth1 with 10.8.0.1 and 10.8.0.2 as ip of the hosts,
i've got keystone, glance, nova api-cert-scheduler, mysql, rabbitmq
working in HA with pacemaker.
The problem comes after installing nova-network and nova-compute, i've
used this nova.conf:
http://pastie.org/private/ddwva8kvaypqrxk7rifvba
and after nova-compute started and hosts rebooted i can't get to work
corosync,
the problem seems that when hosts send packets in eth1 to multicast
address, the source ip is the public one, not the 10.8.0.x one. After
disabling nova-network on boot everything works.
I've also tried to create a virtual eth2 device and set flat_interface
to eth2, but it seems that still nova-network break the configuration as
corosync still uses public ip for private lan.
Any idea?
Corosync goes to great pains to route packets across the interface
identified in the corosync.conf file. If you are using a subnet
definition ie:
bindnetaddr: 10.8.0.0, it may be that the interface's netmask is causing
a rebind to the new interface when nova network starts.
One way to force binding to a specific interface when your network is
not configured in a typical fashion is to identify the bindnetaddr exactly:
ie: bindnetaddr: 10.8.0.1
Regards
-steve
Best Regards
--
Alessandro Tagliapietra | VISup srl
piazza 4 novembre 7
20124 Milano
http://www.visup.it
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-- Alessandro Tagliapietra | VISup srl piazza 4 novembre 7 20124 Milano
-- Alessandro Tagliapietra | VISup srl piazza 4 novembre 7 20124 Milano
-- Alessandro Tagliapietra | VISup srl piazza 4 novembre 7 20124 Milano
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