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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: Jeff D <fixedored@xxxxxxxxx>
Date: Thu, 14 Feb 2008 15:57:46 -0800
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..




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