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Posted to users@tomcat.apache.org by Dola Woolfe <do...@yahoo.com> on 2005/02/10 10:19:10 UTC
Tale of two servers
Hi,
I'm running TC5.5 on two different servers in the same
office. Both run XP Pro SP2. Both servers are
programmatically queried by users and are bombarded
with thousands of requests.
One of the servers responds much more quickly than the
other. In fact, one of them causes timeouts.
The offender is a super duper new dell desktop with
4gb of ram, etc. It's running java 1.5 and is
committed to nothing by tomcat.
The winner is a rinky-dink 2 year old laptop with
little ram, and lots of spyware sucking out cpu.
So this is obviously counterintuitive and I'm
wondering if anyone could suggest where to begin
looking for problems!
Many thank in advance,
Dola
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Re: Tale of two servers
Posted by Mladen Turk <ml...@jboss.com>.
Dola Woolfe wrote:
> Thanks for all responses. I have some new info.
> 3. Finally, and the most hopeful point, the
> better-but-slower server is running Norton virus
> services. Restarting the machine in safe mode (w/
> networkin) solved the problem. Does this settle it? If
> so, what particular setting in Norton is responsible
> for this?
Antivirus software on a production system?
You must be joking ;)!
Are you reading emails on that box or what?
You should consider restricting access to the box
only to the authorized people, and have some
sort of policy what sortware and for what pupose
can be installed on that box.
This will be the ultimate antivirus software thought.
Regards,
Mladen.
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RE: Tale of two servers
Posted by Dola Woolfe <do...@yahoo.com>.
Thanks for all responses. I have some new info.
1. Reverse lookup is disabled on both machines. That
probably rules out DNS resolution.
2. The better-but-slower machine is running java 1.5.
The worse-but-faster machine is running 1.4.2 with the
compatibility package.
3. Finally, and the most hopeful point, the
better-but-slower server is running Norton virus
services. Restarting the machine in safe mode (w/
networkin) solved the problem. Does this settle it? If
so, what particular setting in Norton is responsible
for this?
Many thanks in advance,
Dola
--- George Sexton <gs...@mhsoftware.com> wrote:
> The most common thing for this kind of issue is DNS
> resolution.
>
> George Sexton
> MH Software, Inc.
> http://www.mhsoftware.com/
> Voice: 303 438 9585
>
>
> >
> > On Thu, 10 Feb 2005 01:19:10 -0800 (PST), Dola
> Woolfe
> > <do...@yahoo.com> wrote:
> > > The offender is a super duper new dell desktop
> with
> > > 4gb of ram, etc. It's running java 1.5 and is
> > > committed to nothing by tomcat.
> > >
> > > The winner is a rinky-dink 2 year old laptop
> with
> > > little ram, and lots of spyware sucking out cpu.
>
>
>
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RE: Tale of two servers
Posted by George Sexton <gs...@mhsoftware.com>.
The most common thing for this kind of issue is DNS resolution.
George Sexton
MH Software, Inc.
http://www.mhsoftware.com/
Voice: 303 438 9585
>
> On Thu, 10 Feb 2005 01:19:10 -0800 (PST), Dola Woolfe
> <do...@yahoo.com> wrote:
> > The offender is a super duper new dell desktop with
> > 4gb of ram, etc. It's running java 1.5 and is
> > committed to nothing by tomcat.
> >
> > The winner is a rinky-dink 2 year old laptop with
> > little ram, and lots of spyware sucking out cpu.
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Re: Tale of two servers
Posted by Vinny <xa...@gmail.com>.
More details please. Are both machine running the same version of Java.
Are they both connecting to an external database? Exact same versions
of Tomcat 5.5.x ?
On Thu, 10 Feb 2005 01:19:10 -0800 (PST), Dola Woolfe
<do...@yahoo.com> wrote:
> Hi,
>
> I'm running TC5.5 on two different servers in the same
> office. Both run XP Pro SP2. Both servers are
> programmatically queried by users and are bombarded
> with thousands of requests.
>
> One of the servers responds much more quickly than the
> other. In fact, one of them causes timeouts.
>
> The offender is a super duper new dell desktop with
> 4gb of ram, etc. It's running java 1.5 and is
> committed to nothing by tomcat.
>
> The winner is a rinky-dink 2 year old laptop with
> little ram, and lots of spyware sucking out cpu.
>
> So this is obviously counterintuitive and I'm
> wondering if anyone could suggest where to begin
> looking for problems!
>
> Many thank in advance,
>
> Dola
>
> __________________________________
> Do you Yahoo!?
> All your favorites on one personal page – Try My Yahoo!
> http://my.yahoo.com
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
>
>
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Re: Tale of two servers
Posted by Graham Reeds <gr...@ntlworld.com>.
> The offender is a super duper new dell desktop with
> 4gb of ram, etc. It's running java 1.5 and is
> committed to nothing by tomcat.
Also disable HyperThreading in the BIOS on the new Dell. HT and Java is
not a happy combination.
G.
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RE: Tale of two servers
Posted by Mike Curwen <g_...@globallyboundless.com>.
does the fast one run any anti-virus software? That's been known to kill
performance.
Mike Curwen
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