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Re: [lvs-users] Kernel 2.6.35 and 100% S.I. CPU Time

To: Julian Anastasov <ja@xxxxxx>
Subject: Re: [lvs-users] Kernel 2.6.35 and 100% S.I. CPU Time
Cc: John Sullivan <jslvs@xxxxxxxxxxxxxxxxxxxx>, lvs-users@xxxxxxxxxxxxxxxxxxxxxx
From: Simon Horman <horms@xxxxxxxxxxxx>
Date: Wed, 20 Oct 2010 08:48:33 +0200
On Mon, Oct 18, 2010 at 10:56:54PM +0300, Julian Anastasov wrote:
> 
>       Hello,
> 
> On Wed, 13 Oct 2010, John Sullivan wrote:
> 
> > On October 6th, Julian Anastasov wrote:
> >>    Sorry for the delay. I'm attaching new patch for
> >> testing. You should apply it on backup server. For your
> >> setup only the last hunk in patch is needed. One of the
> >> changes will keep the forwarding methods as specified,
> >> may be you will not see "Local" real servers. If this is
> >> a problem for you let me know. You can test then only
> >> the last change in ip_vs_dr_xmit. Attached patch is for
> >> 2.6.35. It allows backup server after being used as
> >> DR/TUN server in master to forward locally the packets
> >> for connections created after sync.
> >
> > Thanks for this. I've tested it and it passes the test case with none
> > of the previous failure modes apparent, new connections can be
> > switched from one server to the other and back by altering the
> > weights, no machine lockups or wedged/dropped connections. ipvsadm on
> > both machines now reports both servers as "Route" rather than one of
> > them as "Local", as you said, but Jarrod says this is not a concern
> > for us. Further testing will be ongoing, but as far as I can tell at
> > the moment, this fixes things for us.
> 
>       Thanks for testing and confirming that this
> change resolves all issues.

Hi Julian,

do you want the patch applied?


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