tony, what are you using as a load-balancer?
won't it be the load-balancer.jar? it's buggy, slow, etc. It's only there to
help configure a cluster without having
a layer 7 switch at hand(and that's not little)
also, I suggest reading about bugs #161 & #170 in bugzilla
HTH
JP
-----Original Message-----
From: Tony J Brooks [mailto:[EMAIL PROTECTED]]
Sent: Viernes, 05 de Enero de 2001 6:24
To: Orion-Interest
Cc: [EMAIL PROTECTED]
Subject: URGENT: Problems with Orion load balancer.
Happy New Year everyone,
Apologies for re-posting this so soon, but given
that a lot of people will have been away during
the festive period and the necessity for a solution
to my problem intensifies, I want to pass this in
front of you all again.
I'm very grateful for your interest.
Tony.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Tony J Brooks
Sent: 22 December 2000 12:39
To: Orion-Interest
Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Problems with Orion load balancer.
Dear All,
I'm having problems with load-balancing a single island of two orion
appservers. I have followed the instructions from the clustering 'howto'
document, and I've made changes to the relevant XML files. Note, I made the
changes to the default web app files, rather than to the XML files specific
to my app. From the documentation I expect the changes to therefore impact
*all* apps, and that I should experience the desired clustering and load
balancing for my app.
Using the Microsoft Web App Stress Tool, running 100 threads which
continually request a single page from the clustered app via the load
balancer, things seem to work fine for the first minute or so, despite the
fact that the balancer 'drops' servers periodically but then manages to
re-discover them. The performance meters for the servers in the app cluster
show that both machines are working at close to full capacity during this
brief period.
At some point after that first minute or so, the load balancer will
typically drop one of the servers, re-discover it, add it back into the
island, but that server will thereafter be unloaded - the performance meter
registers 0% load. Note that this is despite the fact that the other
server - still alive, is working flat out at 100%.
Has anyone experienced this before ? I can't find anything in the archive.
I'm especially perplexed since a lot of other people claim to have
load-balancing and clustering working fine - after working from the same
'howto' as me.
I would really appreciate help on this.
Merry Christmas everyone.
Tony.
---
Dr Tony J Brooks
Apama (UK) Ltd
17 Millers Yard
Cambridge, UK
Mobile : 07748 767 110
eMail : [EMAIL PROTECTED]
