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Martin Hope
Ankur
Asked: 2011-12-15 00:59:01 +0800 CST
  • 1

I understand that to redirect from port 80 to port 8080 I can use the Apache module mod_proxy,

I understand that I have to change "something" to be like this (example from http://httpd.apache.org/docs/2.2/mod/mod_proxy.html):

ProxyPass /foo http://foo.example.com/bar
ProxyPassReverse /foo http://foo.example.com/bar

What I don't understand is how do I "edit mod_proxy". I found a file called mod_proxy.so but it is not a text file that can be edited.

What do I have to do to make these changes, is it a text file somewhere I have to edit or some commands I have to run?

EDIT:

Based on this question How to use mod_proxy to let my index of Apache go to Tomcat ROOT and be able to browse my other Apache sites

I edited httpd.conf to look like this:

LoadModule proxy_module modules/mod_proxy.so
#LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
#LoadModule proxy_balancer_module modules/mod_proxy_balancer.so

#Enabling proxy for redirection to tomcat

#ProxyRequests Off

#ProxyPreserverHost On

<Proxy *>
Order deny, allow
Allow from all
</Proxy>
#ProxyPass / ajp://localhost:8009/
#ProxyPassReverse / ajp://localhost:8009/

<Location http://www.mywebserver.com>
Order allow,deny
Allow from all
PassProxy / http://localhost:8080/
PassReverseProxy / http://localhost:8080
</Location>

I then tried to restart apache with apachectl -k graceful but I got:

 Syntax error on line 207 of /etc/apache2/apache2.conf: Syntax error on line 1 of /etc/apache2/httpd.conf: Cannot load /etc/apache2/modules/mod_proxy.so into server: /etc/apache2/modules/mod_proxy.so: cannot open shared object file: No such file or directory
Action '-k graceful' failed.

Any info on what I'm doing wrong or what I can read to get more info, would be much appreciated.

apache-2.2 mod-proxy
Martin Hope
Ankur
Asked: 2010-09-11 07:36:55 +0800 CST
  • 0

When I try to start tomcat it doesn't work.

When I look in tomcat/logs/catalina.out I get the line:

  • ./catalina.sh: 454: /usr/bin/java/bin/java: not found

This makes sense since there is no /usr/bin/java/bin/java but there is a /usr/bin/java

It looks like Catalina is adding an extra portion onto the JAVA_HOME variable. When I do echo $JAVA_HOME I get /usr/bin/java

Does anyone know how I can solve this.

tomcat java
Martin Hope
Ankur
Asked: 2010-03-10 23:47:51 +0800 CST
  • 0

I want to increase my heap size when using Tomcat. I was told to add this line

export CATALINA_OPTS=-Xms16m -Xmx256m;

In to the startup.sh script - I did so (at the beginning) but got the error

export: 24: -Xmx256m: bad variable name

Where am I supposed to add it, am I doing something else wrong?

<b>export CATALINA_OPTS=-Xms16m -Xmx256m;</b>
# Better OS/400 detection: see Bugzilla 31132
os400=false
darwin=false
case "`uname`" in
CYGWIN*) cygwin=true;;
OS400*) os400=true;;
Darwin*) darwin=true;;
esac

# resolve links - $0 may be a softlink
PRG="$0"

while [ -h "$PRG" ] ; do
  ls=`ls -ld "$PRG"`
  link=`expr "$ls" : '.*-> \(.*\)$'`
  if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
  else
    PRG=`dirname "$PRG"`/"$link"
  fi
done

PRGDIR=`dirname "$PRG"`
EXECUTABLE=catalina.sh

# Check that target executable exists
if $os400; then
# -x will Only work on the os400 if the files are: 
# 1. owned by the user
# 2. owned by the PRIMARY group of the user
# this will not work if the user belongs in secondary groups
eval
    else
    if [ ! -x "$PRGDIR"/"$EXECUTABLE" ]; then
    echo "Cannot find $PRGDIR/$EXECUTABLE"
    echo "This file is needed to run this program"
    exit 1
fi
fi 

exec "$PRGDIR"/"$EXECUTABLE" start "$@"
tomcat java heapspace
Martin Hope
Ankur
Asked: 2009-05-21 00:41:36 +0800 CST
  • 1

I am trying to start Liferay. It was working a few weeks ago. When I enter localhost:8080 I get a 404 error.

Here is the stack trace, where the error occurs. Does anyone have any ideas regarding how to fix this. I am using Liferay Portal 5.2.2 and Tomcat 5.5

08:07:46,919 ERROR [ContextLoader:220] Context initialization failed
java.lang.StackOverflowError at java.lang.ClassLoader.findBootstrapClass(Native Method)at 
java.lang.ClassLoader.findBootstrapClass0(ClassLoader.java:891) at 
java.lang.ClassLoader.loadClass(ClassLoader.java:301) at 
java.lang.ClassLoader.loadClass(ClassLoader.java:299) at 
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268) at 
java.lang.ClassLoader.loadClass(ClassLoader.java:251) at 
java.net.URL.getURLStreamHandler(URL.java:1141) at java.net.URL.(URL.java:572) at 
java.net.URL.(URL.java:464) at 
sun.misc.URLClassPath$FileLoader.getResource(URLClassPath.java:883) at 
sun.misc.URLClassPath$FileLoader.findResource(URLClassPath.java:872) at 
sun.misc.URLClassPath.findResource(URLClassPath.java:142) at 
java.net.URLClassLoader$2.run(URLClassLoader.java:362) at 
java.security.AccessController.doPrivileged(Native Method) at 
java.net.URLClassLoader.findResource(URLClassLoader.java:359) at 
java.lang.ClassLoader.getResource(ClassLoader.java:977) at 
java.lang.ClassLoader.getResource(ClassLoader.java:972) at 
org.apache.catalina.loader.WebappClassLoader.getResource(WebappClassL oader.java:1123) at 
org.apache.commons.configuration.ConfigurationUtils.locateFromClasspa 
th(ConfigurationUtils.java:531) at 
org.apache.commons.configuration.ConfigurationUtils.locate(Configurat ionUtils.java:513) at 
org.apache.commons.configuration.AbstractFileConfiguration.load(Abstr actFileConfiguration.java:211) at
tomcat