My goal in this testing was to produce a report for management showing how
haproxy with the four tomcats increased capacity and improved scale vs having
direct access to tomcat. I would think it would be pretty straight forward to
produce that graph. Unfortunately, the results that I received
I hope I am not saying something stupid (haven't met `ab` before), but
wouldn't non-2xx responses mean HTTP errors? In that case you have the same
amount of errors (actually, a bit more???) than requests sent. You should fix
those first before running any tests.
Also, as Hank said, you should
Hi Les,
On Thu, Oct 07, 2010 at 01:52:57PM -0400, Les Stroud wrote:
(...)
Also, one interesting thing to note is that at no time am I able to max out
the cpu on any of the boxes. In fact, I barely touch them. I don?t see a
memory or io constraint either. All I can assume is a network
Thank you for taking the time to reply. It is VERY helpful. Please see my
further questions :) below.
LES
On Oct 7, 2010, at 5:11 PM, Willy Tarreau wrote:
Hi Les,
On Thu, Oct 07, 2010 at 01:52:57PM -0400, Les Stroud wrote:
(...)
Also, one interesting thing to note is that at no time am
On Thu, Oct 07, 2010 at 05:56:49PM -0400, Les Stroud wrote:
(...)
So, it sounds like, in this case that haproxy itself is the limiting factor.
in your case yes (or VMware is, depending on which of the two components is
considered necessary).
Tomcat outperforms in some ways because it has
I did a little more digging and found several blogs that suggest that I will
take a performance hit on virtual platforms. In fact, this guy
(http://www.mail-archive.com/haproxy@formilux.org/msg03119.html) seems to have
the same problem. The part that is concerning me is not the overall
What did the haproxy stats web page show during the test?
How long was each test run? many people seem to run ab for a few seconds.
Was tomcat doing anything for the test urls, I am a bit shocked you got 3700
rps from tomcat. Most apps I have seen on it fail at much lower rps.
Raise the max
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