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On Tue, Mar 16, 2010 at 08:28:53AM +0100, Jan Kasprzak wrote:
> Hello,
>
> I have solved this problem:
>
> Jan Kasprzak wrote:
> : I have two IPVS hosts (with heartbeat), managing about 20 virtual services
> : with ~150 workers. I use ldirectord, direct routing, wrr and wlc schedulers.
> : After upgrading one of the IPVS hosts to 2.6.33 (from 2.6.30),
> : I am experiencing problems - the workers are being removed and
> : re-added by ldirectord frequently, and sometimes even the whole
> : virtual service stalls and is redirected to the fallback server.
>
> There were actually two problems: the first one is that
> ipvsadm-1.25 from Fedora 12 reports zero active connections no matter what.
> Replacing the /sbin/ipvsadm binary with 1.24 from Fedora 10 fixes the
> problem.
Hi Jan,
this sounds a lot like the problem that this patch fixes.
http://archive.linuxvirtualserver.org/html/lvs-devel/2010-02/msg00006.html
>
> The other problem turned out to be a PEBKC case: I wanted
> to have the new system as close to the distribution setup as possible,
> so I have even left a Fedora iptables setup in place. This (the stateful
> filter in particular) does not go well with IPVS direct routing.
> The IPVS host has been dropping the TCP FIN packets, and the worker servers
> were soon filled with connections wanting to close, but not receiving
> the TCP FIN from the other side :-(.
>
> -Yenya
>
> --
> | Jan "Yenya" Kasprzak <kas at {fi.muni.cz - work | yenya.net - private}> |
> | GPG: ID 1024/D3498839 Fingerprint 0D99A7FB206605D7 8B35FCDE05B18A5E |
> | http://www.fi.muni.cz/~kas/ Journal: http://www.fi.muni.cz/~kas/blog/ |
> Please don't top post and in particular don't attach entire digests to your
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>
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