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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: Facing Memory leak - 64 bit Tomcat 6.0.35 with windows 2008 R2(64 bit JVM 1.6.0_33)
Date Wed, 05 Sep 2012 21:27:50 GMT
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PJ,

On 9/5/12 3:29 PM, PJ Delsh wrote:
> When we had Tomcat issues, every Tomcat professional we spoke to 
> told us to drop Windows and move to Linux ASAP.

I wouldn't argue that moving away from Microsoft Windows isn't a good
idea in general, but your consultants were probably not proficient with
Windows and wanted you to move for /their/ sake, not yours.

> We were told that Tomcat is more stable and less sensitive on
> Linux, and there are far better troubleshooting tools on Linux than
> there are for Windows.

The "tools" assertion is probably true, but doesn't actually extend to
the JVM itself: the same tools are available on Linux as well as other
operating systems.

If Tomcat is any less stable on Microsoft Windows, it's because of
Windows itself and not Tomcat. There was a time (1998?) when Sun's Linux
JVM was super buggy and Microsoft Windows was the only reasonably stable
OS when it came to Java deployments. Lots of things have changed, but
the Sun/Oracle JVM is very stable on every environment I've used it
(Linux 2.4/2.6, Win2k/XP/Vista/7, and Mac OS X).

> If this is inaccurate, then Tomcat consulting companies are 
> spreading misinformation.

The Apache Software Foundation doesn't control any "Tomcat consulting
companies", and they can spread whatever misinformation they seem
appropriate. It's up to you to decide if their advice is good. If your
problems went away by switching from Microsoft Windows to Linux*, then
I'm glad you had success. I suspect that there was more going on and
that a "simple" switch from Microsoft Windows to Linux wasn't a magic
fix-it pill.

* A tall order for most companies who have a lot of money invested in
their deployment strategy, IT staff, network operations, production
support, etc. It doesn't matter which way you switch: Linux -> Windows
would be a huge inconvenience to an ops department as well.

- -chris
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