Re: Snow Leopard, Apache 2.2, Skewed Load Balancing?
Re: Snow Leopard, Apache 2.2, Skewed Load Balancing?
- Subject: Re: Snow Leopard, Apache 2.2, Skewed Load Balancing?
- From: Chuck Hill <email@hidden>
- Date: Wed, 26 May 2010 07:10:16 -0700
On May 25, 2010, at 3:42 PM, Anjo Krank wrote:
Am 25.05.2010 um 22:46 schrieb Chuck Hill:
Can you try "ab"? This should show things with more accurate
numbers.
ab -n 500 http://whereever
What would that show relevant to the woadaptor load balancer
choosing instances for requests without a woinst cookie or number
in the URL? I'm confused.
It would create a number of sessions which, if all goes right,
should be evenly distributed?
And, with the correct URL, it does and they are all balanced. So the
skewing is some effect of my load testing.
Apart from that, I dimly remember the host and port setting also
influenced the load distribution.
For Round Robin, it follows the instance order of configuration.
If you configure all the instances on Server A, then the ones on
Server B, then C, it will load up Server A first. You need to
interleave the configurations. Is that what you were thinking of?
Yeah right. One trick was to number the instances not <host><port>
but <port><host>.
Interesting idea. I thought it went by instance number.
It does. You just help with the numbering to assure it round robins
by-server first. Assume you use ports 1-3 on servers 4-5. The
numbering is then 14,15,16,24 etc. So next number goes to next server.
Devious!
Thanks Anjo,
Chuck
--
Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
problems.
http://www.global-village.net/products/practical_webobjects
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| References: | |
| | >Snow Leopard, Apache 2.2, Skewed Load Balancing? (From: Chuck Hill <email@hidden>) |
| | >Re: Snow Leopard, Apache 2.2, Skewed Load Balancing? (From: Anjo Krank <email@hidden>) |
| | >Re: Snow Leopard, Apache 2.2, Skewed Load Balancing? (From: Chuck Hill <email@hidden>) |
| | >Re: Snow Leopard, Apache 2.2, Skewed Load Balancing? (From: Anjo Krank <email@hidden>) |
| | >Re: Snow Leopard, Apache 2.2, Skewed Load Balancing? (From: Chuck Hill <email@hidden>) |
| | >Re: Snow Leopard, Apache 2.2, Skewed Load Balancing? (From: Anjo Krank <email@hidden>) |