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Hello!
All test was on the same machine. There is no problems with only few
connections while testing. Now we have above 8000 conn/ps. But it is only
half of planned rate. I can see connections from lvs master on lvs backup so
connection sync is work. May be not all connections is synchronized, but I
don't know how to test this.
Regards, Aleksey
-----Original Message-----
From: lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx
[mailto:lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Simon Horman
Sent: Monday, December 14, 2009 12:25 PM
To: LinuxVirtualServer.org users mailing list.
Subject: Re: [lvs-users] ip_vs_send_async error
On Mon, Dec 14, 2009 at 11:16:44AM +0200, Aleksey Chudov wrote:
> Hello!
>
> Finally we have place our LVS in production. We doesn't find any errors in
> test scheme. But there is problem in production environment. We are using
> connection sync and every second above 100 error messages comes to
> /var/log/messages on LVS Master server.
>
> Dec 14 12:06:42 lvs-master kernel: IPVS: ip_vs_send_async error
> Dec 14 12:06:42 lvs-master kernel: IPVS: ip_vs_send_async error
> Dec 14 12:06:42 lvs-master kernel: IPVS: ip_vs_send_async error
> Dec 14 12:06:42 lvs-master kernel: IPVS: ip_vs_send_async error
>
> I try to start connection sync daemon different ways:
>
> 1)
> /sbin/ipvsadm --start-daemon=master --mcast-interface=eth0 --syncid=1
> /sbin/ipvsadm --start-daemon=backup --mcast-interface=eth0 --syncid=1
>
> 2)
> /sbin/ipvsadm --start-daemon=master
> /sbin/ipvsadm --start-daemon=backup
>
> 3)
> /sbin/ipvsadm --start-daemon=master --mcast-interface=eth1
> /sbin/ipvsadm --start-daemon=backup --mcast-interface=eth1
>
> But every time get the same errors. I can see connections from lvs master
on
> lvs backup so connection sync is work.
>
> My kernel version is 2.6.31.2.
> My ipvsadm version is ipvsadm-1.24.
At a wild guess I'd say that there is some issue with the
network configuration on your production machine such
that the kernel can't send packets to the multicast group
224.0.0.81. Perhaps a missing route?
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LinuxVirtualServer.org mailing list - lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Send requests to lvs-users-request@xxxxxxxxxxxxxxxxxxxxxx
or go to http://lists.graemef.net/mailman/listinfo/lvs-users
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