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Re: [lvs-users] help debugging a weird problem. I think it is LVS

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [lvs-users] help debugging a weird problem. I think it is LVS
From: "Randy Paries" <rtparies@xxxxxxxxx>
Date: Thu, 14 Feb 2008 19:53:43 -0600
On Thu, Feb 14, 2008 at 5:57 PM, Jeff D <fixedored@xxxxxxxxx> wrote:
>
> Randy Paries wrote:
>  > On Thu, Feb 14, 2008 at 5:03 PM, Graeme Fowler <graeme@xxxxxxxxxxx> wrote:
>  >> On Thu, 2008-02-14 at 16:45 -0600, Randy Paries wrote:
>  >>  > in my ldirectord.cf i have persistent=1800
>  >>
>  >>  OK, well...
>  >>
>  >>  AOL (I don't know if RR do this, but as a TW subsidiary, and therefore
>  >>  probably using AOL's infrastructure these days with AOL tie-in) provide
>  >>  a proxy farm for their users.
>  >>
>  >>  This means that a session initiated by a single client could appear to
>  >>  wander between several proxies; in turn that means if you have
>  >>  session-based applications or persistence in use that they could end up
>  >>  (in a basic sense) having to login several times, repeatedly. Worst
>  >>  case, depending on the application in use at your end, they might just
>  >>  be refused connections as their session is not in place.
>  >>
>  >>  Joe has documented this here:
>  >>
>  >>  
> http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.persistent_connection.html#proxy_farm
>  >>
>  >>  There's a lot of info there, so take the time to read it and see if the
>  >>  provided solutions work (or, indeed, are relevant) for you.
>  >>
>  >>
>  >>
>  >>  Graeme
>  >
>  > Graeme,
>  > thanks for the help.
>  >
>  > I am familiar with this problem, but they can not even get to the home
>  > page (which is pure static html and needing no session/state info)
>  >
>  > that is why i am confused.  So would the persistence problem be an
>  > issue or applicable here?
>
>
>  How are your servers returning? are they sending the return via the vip
>  or the realip?  My first guess is that the request goes to the vip but
>  the servers are sending the return from the realip and getting stopped
>  by firewall rules..
>

the servers are returning via each of their own public ips (realip) .
The firewalls are disabled.

thanks
Randy


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