If you read the statement of direction released by BMC which explains
why they moved from Servlet Exec to Tomcat, it also informs you that the
'webserver' component of Tomcat will be install from the MidTier
installer if you select 'Other' option when you get to the question.

Excerpt from the SOD:
___CUT
The compatibility matrix lists Tomcat as a Web server, as well. What
happens if I install Tomcat without a Web server (such as
IIS or Apache)?


If Tomcat is installed with BMC Remedy AR System version 7.0.01, and
"other" is selected as the Web server,
BMC Remedy AR System will automatically default to the use of Tomcat as
both Web server and servlet
engine.


A different Web server can also be installed at a later time if so
desired. Please ensure that the Web server you
install is consistent with the compatibility matrix for BMC Remedy AR
System.
___EOF

My personal experience with Tomcat is much more favorable then
ServletExec and I'm sure others would state the same.  I am also very
pleased that they choose an open source solution for both supportability
and active development.  Tomcat is very actively developed in the
community whereas ServletExec has been stale for years.

Cheers,

--------
Curtis Gallant

-----Original Message-----
From: Action Request System discussion list(ARSList)
[mailto:[EMAIL PROTECTED] On Behalf Of strauss
Sent: Tuesday, October 24, 2006 11:35 AM
To: [email protected]
Subject: Mid-Tier 7.0.01 and Tomcat

On the SupportWeb (if you can get to it) under ARS 7.0.01 documentation
there is a new white paper on "Benchmark Comparison of the ServletExec
and Tomcat Engines" with some interesting results and confusing
terminology. They had a performance and scalability session at UserWorld
from the new BMC Remedy benchmarking group that got into this a little
bit, but this is the first whitepaper I have seen from them.

According to the results of their tests, all on Windows Server 2003 (the
only platform I care about), IIS 6 and ServeltExec 5p10 was faster than
IIS 6 and Tomcat 5.5 (which they are now bundling in the mid-tier 7.0.01
installer) because of the JK connector required for Tomcat to talk to
IIS. My testing yesterday bore this out, plus Tomcat crashed several
times when trying to load ITSM 7 consoles (not an auspicious start). The
whitepaper says that Tomcat performs better __only__ when run as Tomcat
5.5 "standalone" meaning on a Tomcat web server instead of IIS. What is
not clear to me is what the "Tomcat web server" is. It does not offer to
install it with mid-tier 7.0.01 if you don't have IIS on the server, so
it's not in the bundle. If they mean the Apache web server, my previous
experience was that Apache has never run well on Windows and is not
preferable to IIS on that platform.

Has anyone else played with this on Windows 2003 and figured out what
they meant by Tomcat web server? The main reason for considering Tomcat
is that ServletExec has memory issues that were evident in testing, plus
stability problems up to and definitely beyond 500 virtual users (a load
that I will never see here). Tomcat 5.5 "Standalone" appears to be some
variation of Tomcat beyond what they bundled in the installer, but that
is not clear in the benchmarking paper. With the salient exception of
Perl/ARSPerl, I don't use open source stuff as a rule so I am not that
savvy about rolling my own or departing from what the Remedy installer
will do, which appears to be limited to adding the Tomcat JSP engine and
JK connector to IIS.

BTW, if you are looking for the documentation on installing mid-tier
7.0.01 with Tomcat, it is in the ARS 7.0.01 Release Notes (English) that
are conspicuously ABSENT from the SupportWeb documentation page (if you
read any of the other supported languages, those Release Notes are
available). Support sent me a copy that was clearly a review document,
and that is what I have been working from.

Christopher Strauss, Ph.D.
Remedy Database Administrator
University of North Texas Computing Center
http://remedy.unt.edu/helpdesk/

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