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From John Murtari <>
Subject virtual hosting
Date Wed, 23 Oct 2002 19:50:40 GMT


I posted some examples of a <host></host> a few minutes ago.  

I am not sure if this will help, but it may help to track it down a

I had been starting Tomcat from a wrapper script where I set a bunch
of limits on memory, cpu, etc... :

    ulimit -c 1000 # core files
    ulimit -d 80000 # data segment
    ulimit -l 80000 # max size which can be locked into memory
    ulimit -m 80000 # The maximum resident set size
    ulimit -s 80000 The maximum stack size
    ulimit -t 300 #The max cpu time
    ulimit -v 150000  # The  maximum amount of virtual memory

With these limits I was also getting an java.lang.OutOfMemoryError

>From the shell prompt, if you type ulimit -a it will list your shell's
limits.  If you start Tomcat from the same shell, it will inherit
those limits.  

I tried upping each limit a little here and a little there trying to
figure out exactly how much memory, stack, etc.. Tomcat wanted but I
finally gave up on it and save that adventure for another day.

chad kellerman writes:
 > He;llo,
 > Can anyone point me to some good links to post exampls of httpd.conf
 > files and server.xml files?
 > I have started getting 
 > java.lang.OutOfMemoryError: unable to create new native thread
 > when I started addding extra virtual hosts to my tomcat server.
 > thanks,
 > chad

John Murtari                              Software Workshop Inc. 315.695.1301(x-211)    "TheBook.Com" (TM)

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