Filipe Brandenburger wrote:
Hi,
On Thu, May 8, 2008 at 6:00 PM, Rudi Ahlers <Rudi@xxxxxxxxxxx> wrote:
Exception in thread "main" java.lang.OutOfMemoryError: Cannot create
It looks like it's running out of memory when starting more threads.
Did you check if you have enough memory in this server to run Tomcat?
I think you need at least 512MB for it, but I would recommend more.
I know there are some tunings made to the JVM for it to request more
memory. If you do "ps -ef | grep java" when Tomcat is started you will
see some parameters starting with -X that will specify memory sizes,
check how much it requests. I don't really know how to tweak those,
check the script that starts Tomcat to see if it allows changing them.
HTH,
Filipe
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What you're saying could be true, but I don't think it's the case.
I have confirmed with the client, and he says that 128MB RAM would be
enough for his app.
[root@vps06 /]# /etc/init.d/tomcat5 restart
Starting tomcat5: [ OK ]
[root@vps06 /]# ps -ef | grep java
tomcat 13918 1 62 02:40 ? 00:00:02
/usr/lib/jvm/java/bin/java
-Dcatalina.ext.dirs=/usr/share/tomcat5/shared/lib:/usr/share/tomcat5/common/lib
-Dcatalina.ext.dirs=/usr/share/tomcat5/shared/lib:/usr/share/tomcat5/common/lib
-Djava.endorsed.dirs=/usr/share/tomcat5/common/endorsed -classpath
/usr/lib/jvm/java/lib/tools.jar:/usr/share/tomcat5/bin/bootstrap.jar:/usr/share/tomcat5/bin/commons-logging-api.jar:/usr/share/java/mx4j/mx4j-impl.jar:/usr/share/java/mx4j/mx4j-jmx.jar
-Dcatalina.base=/usr/share/tomcat5 -Dcatalina.home=/usr/share/tomcat5
-Djava.io.tmpdir=/usr/share/tomcat5/temp
org.apache.catalina.startup.Bootstrap start
[root@vps06 /]# ps -ef | grep java
root 14011 12038 0 02:40 pts/0 00:00:00 grep java
[root@vps06 /]# free -m
total used free shared buffers cached
Mem: 256 20 235 0 0 0
-/+ buffers/cache: 20 235
As you can see, the first time I ran "ps -ef | grep java" I could see
that it's starting up, but the second time, it's not running
I have another terminal open with top running, and the memory usage
didn't even blink when I ran it
--
Kind Regards
Rudi Ahlers
CEO, SoftDux
Web: http://www.SoftDux.com
Check out my technical blog, http://blog.softdux.com for Linux or other technical stuff, or visit http://www.WebHostingTalk.co.za for Web Hosting stuff
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