On 7/30/2013 1:17 PM, Tomcat Random wrote:
Thanks Mark, I will give it a close read.
As far as profiling, are you using any tools that are worth mentioning?
Nothing outstanding, since currently all of our applications are pretty
lightweight. That may change if we redo the architecture.
JMeter / Selenium in combination can generate a lot of traffic. Generate
a selenium test script, export to JUnit, couple with HTMLUnit, and
hammer away.
There are several ways to watch what goes on with your application:
JConsole
VisualVM
The Tomcat Wiki page has more:
http://wiki.apache.org/tomcat/FAQ/Monitoring
For lighter weight profiling (usually to figure out where the
application bottlenecks are), I run the project under NetBeans and
instrument the project.
Access logs are usually a good first source for generating JMeter tests.
In general, people can only give you guidelines concerning sizing,
profiling, and benchmarking. The particulars depend on your particular
application.
. . . . just my two cents.
/mde/
PS - Please don't top post.
Best,
A
On Tue, Jul 30, 2013 at 4:02 PM, Mark Eggers <its_toas...@yahoo.com> wrote:
On 7/30/2013 12:42 PM, Tomcat Random wrote:
The project I'm working on has 5000 simultaneous users average. I have two
physical servers both running an instance of Tomcat 7.0. They're behind a
physical load balancer with sticky, least connections balancing. Nothing
in
front of the Tomcats. Port 80 to is routed to them by iptables.
Anyone out there willing to offer some tips (or point me to them) on
configuration for this amount of traffic?
Environment is:
DELL PowerEdge R720 - 32 GB DELL RAM, GB Memory: 32
Single Socket Six Core Intel Xeon E5-2640 2.5GHz, #Processors: 1, #Cores
per Proc: 6
RHEL 6
TIA,
Alec
A great overview, and a solid outline of the process you should follow:
http://people.apache.org/~**markt/presentations/2009-04-**
01-TomcatTuning.pdf<http://people.apache.org/~markt/presentations/2009-04-01-TomcatTuning.pdf>
That, plus profiling your application with real-world traffic to
understand bottlenecks and use cases . . .
. . . just my two cents.
/mde/
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