[THIN] Re: Load Balancing across Zones
- From: "Lilley, Brian" <brian.lilley@xxxxxxxx>
- To: "'thin@xxxxxxxxxxxxx'" <thin@xxxxxxxxxxxxx>
- Date: Tue, 27 Jul 2004 12:48:29 +0100
Cherie, I'm pretty sure the application would be balanced across all zones in
XP.
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On
Behalf Of cherie.watts
Sent: 27 July 2004 02:42
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Load Balancing across Zones
Thanks Ron
Will definitely take under consideration when planing to go to MPS3.
Can you enlighten me on my MF XP ZDC query?
Expected number of users eventually is quite high...couple of hundred plus
Grateful for the help from Everyone.
Cherie
----- Original Message -----
From: Ron Oglesby <Roglesby@xxxxxxxxxxxx>
Date: Tuesday, July 27, 2004 10:46 am
Subject: [THIN] Re: Load Balancing across Zones
> ZDCs wont share info across zones by default with MPS3. (At least
> not like
> with previous versions) of course you can turn it on if you want,
> but if it
> is just a limited number of users going across from one zone to
> another I
> wouldn;t
>
> Ron Oglesby
> Senior Technical Architect
> Microsoft MVP - Windows Server
>
> RapidApp, Chicago
> Mobile 815 325-7618
> Office 312 372-7188
> e-mail roglesby@xxxxxxxxxxxx
>
> -----Original Message-----
> From: thin-bounce@xxxxxxxxxxxxx [thin-bounce@xxxxxxxxxxxxx] On Behalf
> Of cherie.watts
> Sent: Monday, July 26, 2004 6:20 PM
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Re: Load Balancing across Zones
>
>
> Hi Brian
>
> I am running PS XP.
>
> I have not previously published applications across zones due to
> poor WAN
> links.
>
> The WAN links between our 2 datacentres is now gibabit and we are
> looking at
> Publishing apps across the two datacentres for high availability.
>
> I know that within a zone the DC maintains a list of the loads for all
> servers in the zone. Specifically they update the Load Bias when new
> connections are established. I also understand that the ZDC talk
> to each
> other and share the load values as well.
>
> But does a ZDC update the load bias for a server that is not in
> it's zone?
> Is a user more likely to be directed to a server within the zone,
> of the ZDC
> the client talks to?
> Am I likely to get 10 users on server A in Zone 1 and 20 users on
> Servers B
> and C in Zone 2?
>
> I think during low activity periods this would not be an issue,
> but what
> about the morning rush?
>
> Thanks for sharing the Intel.
>
> Cheers
>
> Cherie Watts
>
>
> ----- Original Message -----
> From: "Lilley, Brian" <brian.lilley@xxxxxxxx>
> Date: Monday, July 26, 2004 7:06 pm
> Subject: [THIN] Re: Load Balancing across Zones
>
> > Hi Cherie, which version of PS are you referring to?
> >
> > In PS XP, you have no choice but to load balance across zones,
> > assuming the
> > app is published in all zones... However in PS3 you can load
> > balance just
> > with zones by turning off 'share load information between
> zones'.
> > Turningthis off effectively stops intra ZDC comms between the
> > zones.. which is good
> > for farms split across high latency WAN links.
> >
> > A question I have is... if you turn off the 'share load info',
> > then, when a
> > zone is at 100% capacity, can it be configured such that a
> client
> > is then
> > failed over to another zone??
> >
> > cheers, Brianos
> >
> > -----Original Message-----
> > From: thin-bounce@xxxxxxxxxxxxx [thin-bounce@xxxxxxxxxxxxx]On
> > Behalf Of cherie.watts
> > Sent: 26 July 2004 05:37
> > To: thin@xxxxxxxxxxxxx
> > Subject: [THIN] Load Balancing across Zones
> >
> >
> >
> > Hi
> >
> > Does anyone load balance applications across Zones? I am
> wondering how
> > efficient/effective the load balancing is in this configuration.
> >
> > Thanks
> >
> > Cherie Watts
> >
>
> >
> >
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Instructions transmitted over this system are not binding on CSFB until they
are confirmed by us. Message transmission is not guaranteed to be secure.
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