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adjusting heap size for Tomcat in WTP [message #148180]

Mon, 21 November 2005 22:34

Eclipse User

I am trying to figure out how to adjust the heap size when Tomcat is
started within the WTP. I can't find any notes anywhere about how to do
this. If I look at the system process list when a Tomcat instance is
running, I can see that there is a command line like:

/usr/lib/jvm/java-1.5.0-sun-1.5.0.05/bin/java
-Dcatalina.base=/home/noel/workspace/.metadata/.plugins/org. eclipse.wst.server.core/tmp0
-Dcatalina.home=/usr/local/tomcat5
-Djava.endorsed.dirs=/usr/local/tomcat5/common/endorsed -classpath
/usr/local/tomcat5/bin/bootstrap.jar:/usr/lib/jvm/java-1.5.0 -sun-1.5.0.05/lib/tools.jar
org.apache.catalina.startup.Bootstrap start

....and from what I've dug up about this "Bootstrap" class, I should be
able to pass it vmargs like Xms and Xmx, but I don't see where I would
enter those arguments anywhere in the world of WTP.

I can't be the only one who needs to do this. Have I overlooked
something simple?

TIA,
Noel

Re: adjusting heap size for Tomcat in WTP [message #148206 is a reply to message #148180]

Tue, 22 November 2005 03:50

Eclipse User

Server -> Open

Open Launch Configuration -> Arguments tab

Under VM Arguments, add:

-Xms128M -Xmx512M

Check out "java -X" from the command line.

Noel Bush wrote:
> I am trying to figure out how to adjust the heap size when Tomcat is
> started within the WTP. I can't find any notes anywhere about how to do
> this. If I look at the system process list when a Tomcat instance is
> running, I can see that there is a command line like:
>
> /usr/lib/jvm/java-1.5.0-sun-1.5.0.05/bin/java
> -Dcatalina.base=/home/noel/workspace/.metadata/.plugins/org. eclipse.wst.server.core/tmp0
> -Dcatalina.home=/usr/local/tomcat5
> -Djava.endorsed.dirs=/usr/local/tomcat5/common/endorsed -classpath
> /usr/local/tomcat5/bin/bootstrap.jar:/usr/lib/jvm/java-1.5.0 -sun-1.5.0.05/lib/tools.jar
> org.apache.catalina.startup.Bootstrap start
>
> ...and from what I've dug up about this "Bootstrap" class, I should be
> able to pass it vmargs like Xms and Xmx, but I don't see where I would
> enter those arguments anywhere in the world of WTP.
>
> I can't be the only one who needs to do this. Have I overlooked
> something simple?
>
> TIA,
> Noel

Re: adjusting heap size for Tomcat in WTP [message #148237 is a reply to message #148206]

Tue, 22 November 2005 10:59

Eclipse User

Darryl L. Miles wrote:
>
> Server -> Open
>
> Open Launch Configuration -> Arguments tab
>
> Under VM Arguments, add:
>
> -Xms128M -Xmx512M

Thanks! That was simple enough.

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