[THIN] Re: load evaluators
- From: "Jeff Durbin" <techlists@xxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Tue, 27 Jan 2004 09:27:34 +1300
I've seen it happen. I had a customer that was running Great Plains, as I
recall. There was a bug in the app that caused it to max out the CPU when
the user was looking at the results of a query. Load would be at 10000, and
no users could launch the published app. The load evalutors would be just
about worthless if they didn't stop users from logging on when the server is
full. I don't have the PDF handy, but see the Load Manager docs:
You can adjust server load calculations for individual servers with Load
Manager.
For instructions about configuring load evaluators, see Getting Started with
Citrix
Load Manager, available in the Docs folder on the MetaFrame XP CD-ROM.
You can try it yourself. AppSense Performance Manager comes with a utility
that will max a server's CPU. Run it on a server and try to connect. I'll
email it to you off-list.
Jeff Durbin
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Brian Lilley
Sent: 27 January 2004 7:17 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: load evaluators
The document you quoted doesn't state that 100% loading will reject
additional connections. Our testers say they are convinced that the
evaluators simply don't work??
Hhhhhmmmmm...
-----Original Message-----
From: Jeff Durbin [mailto:techlists@xxxxxxxxxxxxx]
Sent: 26 January 2004 17:57
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: load evaluators
Nah - that's not true. If the server's load is at 100% as defined by the
load evaluators, QSERVER or QFARM /APP will show the load at 10000, and the
server won't take any additional users. See
http://support.citrix.com/kb/entry!default.jspa?categoryID=122&entryID=1804&;
fromSearchPage=true.
Jeff Durbin
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Brian Lilley
Sent: 27 January 2004 3:33 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] load evaluators
Hello all,
I have heard from our testers that the load evaluators for Citrix load
balancing will not actually stop users accessing a citrix server when the
server reports 100% load. I understand that the only way to actually stop
users accessing an app is by way of the farmwide 'number of instances of an
application' setting??
Is this true??
thanks in advance
Brian Lilley
Systems Integration
Vivista Ltd
e - brian.lilley@xxxxxxxxxxxxx
www.vivista.co.uk
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