Thanks for the explanation
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Ole Husgaard
Sent: Saturday, February 03, 2001 6:11 PM
To: jBoss
Subject: Re: [jBoss-User] How to use standalone tomcat in JBoss Pre-2.1
Hi,
Johnson Lim wrote:
> Please help,
> 1. How to set jboss.conf and jboss.jcml in jboss pre 2.1 to run standalone
> tomcat, since there are several setting have been setting up for Embedded
> Tomcat?
> 2. Do the autodeployer MBean (for war files) will run on standalone tomcat
?
I don't use Tomcat, so I don't know about these two
questions.
I would, however, guess that no special setting is
needed for JBoss when Tomcat is in a seperate VM,
since it would look to JBoss like any other standalone
client.
And since Tomcat is seperate, I don't see how the
JBoss autodeployer can deploy in Tomcat.
If anybody knows for sure, please correct me if
I am wrong.
> 3. OT: Is that true that one JVM only can handler about 200 MB memory?
May be OT, but still relevant to JBoss.
This depends on the implementation of the VM, so
Sun, IBM and other vendors may have different
limits.
I find it unlikely that *any* VM implementation
should have a limit as low as 200 MB.
But (here is becomes JBoss-relevant), it is
important for performance that the VM does not
become larger than available physical memory,
otherwise swapping occurs which slows down a lot.
To keep the VM size down, the EJB specification
uses a technique known as passivation that will
write beans not used for some time to disk so
that their memory can be used for other things.
The passivation is not faster than swapping, but
it can be better controlled from the EJB server.
JBoss has quite a few advanced configuration
settings that can be used for fine-tuning this
for max. performance.
Best Regards,
Ole Husgaard.
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