Caldarale, Charles R wrote:
From: André Warnier [mailto:[EMAIL PROTECTED]
Subject: Tomcat threads, II
>> -Djava.security.manager
>
> Enabling the security manager slows things down; do you really need it?
>
Not as far as I know. It was only the default setting on that system,
from the (non-official) Tomcat5.5 Debian package. I have turned it off
now, and restarted Tomcat, but it did not have any noticeable impact on
the startup time.
-classpath :/usr/lib/jvm/java-1.5.0-sun/jre//lib/jcert.jar:
/usr/lib/jvm/java-1.5.0-sun/jre//lib/jnet.jar:
/usr/lib/jvm/java-1.5.0-sun/jre//lib/jsse.jar:
/usr/share/tomcat5.5/bin/bootstrap.jar:
/usr/share/tomcat5.5/bin/commons-logging-api.jar
The classpath above is very wrong: no jars from jre/lib should *ever* be on the
classpath. Those jars are already on the JVM's bootclasspath and will at best
be ignored anywhere else. Their presence will at a minimum slow down Tomcat
initialization.
Also, the commons-logging-api.jar should not be on the classpath; Tomcat finds
that all by itself, based on entries in the bootstrap.jar manifest. If you
need commons-logging for a webapp, it should be in the webapp's WEB-INF/lib
directory, not on classpath.
Finally, the leading colon on the classpath shouldn't be there, but it appears
to do little harm.
Now that is another story.
As far as I can tell, these settings come from the "catalina.sh" script.
I have no idea if this script is modified, compared to the Official version.
It looks like it covers several platforms though, so I doubt that it is
specifically from the Debian packager.
I attach it for inspection.
Now I'll try what you indicate above, gradually removing selected
portions, tell you later what it does to my system.
...
Well, it seems to have survived (apart from bootstrap.jar, which I had
to leave), and now runs as
tomcat55 8106 1 97 119903 196100 0 17:54 pts/2 00:04:56
/usr/lib/jvm/java-1.5.0-sun/bin/java -Djava.awt.headless=true -Xmx256M
-server -Djava.endorsed.dirs=/usr/share/tomcat5.5/common/endorsed
-classpath :/usr/share/tomcat5.5/bin/bootstrap.jar
-Dcatalina.base=/var/lib/tomcat5.5 -Dcatalina.home=/usr/share/tomcat5.5
-Djava.io.tmpdir=/var/lib/tomcat5.5/temp
org.apache.catalina.startup.Bootstrap start
But that did not apparently reduce its startup time much.
If anything, it seems now to occupy more memory than before :
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
8106 tomcat55 25 0 485m 202m 12m S 0.0 40.1 6:22.38 java
Against before :
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2864 tomcat55 25 0 482m 188m 12m S 0.0 37.4 6:46.74 java
Is there an explanation for that ?
As far as I know, the same applications are loaded as last time.
I also don't seem to be able to run JConsole. I am connecting to that
system via a terminal-like SSH connection only.
[EMAIL PROTECTED]:/usr/share/tomcat5.5/bin# jconsole
Exception in thread "AWT-EventQueue-0" java.awt.HeadlessException:
No X11 DISPLAY variable was set, but this program performed an operation
which requires it.
at
java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:159)
etc...
Is there a way around this ?
#!/bin/sh
# -----------------------------------------------------------------------------
# Start/Stop Script for the CATALINA Server
#
# Environment Variable Prequisites
#
# CATALINA_HOME May point at your Catalina "build" directory.
#
# CATALINA_BASE (Optional) Base directory for resolving dynamic portions
# of a Catalina installation. If not present, resolves to
# the same directory that CATALINA_HOME points to.
#
# CATALINA_OPTS (Optional) Java runtime options used when the "start",
# "stop", or "run" command is executed.
#
# CATALINA_TMPDIR (Optional) Directory path location of temporary directory
# the JVM should use (java.io.tmpdir). Defaults to
# $CATALINA_BASE/temp.
#
# JAVA_HOME Must point at your Java Development Kit installation.
# Required to run the with the "debug" or "javac" argument.
#
# JRE_HOME Must point at your Java Development Kit installation.
# Defaults to JAVA_HOME if empty.
#
# JAVA_OPTS (Optional) Java runtime options used when the "start",
# "stop", or "run" command is executed.
#
# JPDA_TRANSPORT (Optional) JPDA transport used when the "jpda start"
# command is executed. The default is "dt_socket".
#
# JPDA_ADDRESS (Optional) Java runtime options used when the "jpda start"
# command is executed. The default is 8000.
#
# JSSE_HOME (Optional) May point at your Java Secure Sockets Extension
# (JSSE) installation, whose JAR files will be added to the
# system class path used to start Tomcat.
#
# CATALINA_PID (Optional) Path of the file which should contains the pid
# of catalina startup java process, when start (fork) is used
#
# $Id: catalina.sh 394120 2006-04-14 15:25:07Z yoavs $
# -----------------------------------------------------------------------------
# OS specific support. $var _must_ be set to either true or false.
cygwin=false
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"`/"$link"
fi
done
# Get standard environment variables
PRGDIR=`dirname "$PRG"`
# Only set CATALINA_HOME if not already set
[ -z "$CATALINA_HOME" ] && CATALINA_HOME=`cd "$PRGDIR/.." ; pwd`
if [ -r "$CATALINA_HOME"/bin/setenv.sh ]; then
. "$CATALINA_HOME"/bin/setenv.sh
fi
# For Cygwin, ensure paths are in UNIX format before anything is touched
if $cygwin; then
[ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
[ -n "$JRE_HOME" ] && JRE_HOME=`cygpath --unix "$JRE_HOME"`
[ -n "$CATALINA_HOME" ] && CATALINA_HOME=`cygpath --unix "$CATALINA_HOME"`
[ -n "$CATALINA_BASE" ] && CATALINA_BASE=`cygpath --unix "$CATALINA_BASE"`
[ -n "$CLASSPATH" ] && CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
[ -n "$JSSE_HOME" ] && JSSE_HOME=`cygpath --absolute --unix "$JSSE_HOME"`
fi
# For OS400
if $os400; then
# Set job priority to standard for interactive (interactive - 6) by using
# the interactive priority - 6, the helper threads that respond to requests
# will be running at the same priority as interactive jobs.
COMMAND='chgjob job('$JOBNAME') runpty(6)'
system $COMMAND
# Enable multi threading
export QIBM_MULTI_THREADED=Y
fi
# Get standard Java environment variables
if $os400; then
# -r will Only work on the os400 if the files are:
# 1. owned by the user
# 2. owned by the PRIMARY group of the user
# this will not work if the user belongs in secondary groups
BASEDIR="$CATALINA_HOME"
. "$CATALINA_HOME"/bin/setclasspath.sh
else
if [ -r "$CATALINA_HOME"/bin/setclasspath.sh ]; then
BASEDIR="$CATALINA_HOME"
. "$CATALINA_HOME"/bin/setclasspath.sh
else
echo "Cannot find $CATALINA_HOME/bin/setclasspath.sh"
echo "This file is needed to run this program"
exit 1
fi
fi
gcj=no
"$_RUNJAVA" -version 2>&1 | grep -q "^gij (GNU libgcj)" && gcj=yes
# Add on extra jar files to CLASSPATH
if [ -n "$JSSE_HOME" -a "$gcj" != "yes" ]; then
CLASSPATH="$CLASSPATH":"$JSSE_HOME"/lib/jcert.jar:"$JSSE_HOME"/lib/jnet.jar:"$JSSE_HOME"/lib/jsse.jar
fi
CLASSPATH="$CLASSPATH":"$CATALINA_HOME"/bin/bootstrap.jar:"$CATALINA_HOME"/bin/commons-logging-api.jar
if [ -z "$CATALINA_BASE" ] ; then
CATALINA_BASE="$CATALINA_HOME"
fi
if [ -z "$CATALINA_TMPDIR" ] ; then
# Define the java.io.tmpdir to use for Catalina
CATALINA_TMPDIR="$CATALINA_BASE"/temp
fi
# Bugzilla 37848: When no TTY is available, don't output to console
have_tty=0
if [ "`tty`" != "not a tty" ]; then
have_tty=1
fi
# For Cygwin, switch paths to Windows format before running java
if $cygwin; then
JAVA_HOME=`cygpath --absolute --windows "$JAVA_HOME"`
JRE_HOME=`cygpath --absolute --windows "$JRE_HOME"`
CATALINA_HOME=`cygpath --absolute --windows "$CATALINA_HOME"`
CATALINA_BASE=`cygpath --absolute --windows "$CATALINA_BASE"`
CATALINA_TMPDIR=`cygpath --absolute --windows "$CATALINA_TMPDIR"`
CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
[ -n "$JSSE_HOME" ] && JSSE_HOME=`cygpath --absolute --windows "$JSSE_HOME"`
JAVA_ENDORSED_DIRS=`cygpath --path --windows "$JAVA_ENDORSED_DIRS"`
fi
# juli LogManager disabled if running under libgcj (see bug #395167)
if [ -r "$CATALINA_HOME"/bin/tomcat-juli.jar -a "$gcj" != "yes" ]; then
JAVA_OPTS="$JAVA_OPTS
"-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager"
"-Djava.util.logging.config.file="$CATALINA_BASE/conf/logging.properties"
fi
# ----- Execute The Requested Command -----------------------------------------
# Bugzilla 37848: only output this if we have a TTY
if [ $have_tty -eq 1 ]; then
echo "Using CATALINA_BASE: $CATALINA_BASE"
echo "Using CATALINA_HOME: $CATALINA_HOME"
echo "Using CATALINA_TMPDIR: $CATALINA_TMPDIR"
if [ "$1" = "debug" -o "$1" = "javac" ] ; then
echo "Using JAVA_HOME: $JAVA_HOME"
else
echo "Using JRE_HOME: $JRE_HOME"
fi
fi
if [ "$1" = "jpda" ] ; then
if [ -z "$JPDA_TRANSPORT" ]; then
JPDA_TRANSPORT="dt_socket"
fi
if [ -z "$JPDA_ADDRESS" ]; then
JPDA_ADDRESS="8000"
fi
if [ -z "$JPDA_OPTS" ]; then
JPDA_OPTS="-Xdebug
-Xrunjdwp:transport=$JPDA_TRANSPORT,address=$JPDA_ADDRESS,server=y,suspend=n"
fi
CATALINA_OPTS="$CATALINA_OPTS $JPDA_OPTS"
shift
fi
if [ "$1" = "debug" ] ; then
if $os400; then
echo "Debug command not available on OS400"
exit 1
else
shift
if [ "$1" = "-security" ] ; then
echo "Using Security Manager"
shift
exec "$_RUNJDB" $JAVA_OPTS $CATALINA_OPTS \
-Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
-sourcepath
"$CATALINA_HOME"/../../jakarta-tomcat-catalina/catalina/src/share \
-Djava.security.manager \
-Djava.security.policy=="$CATALINA_BASE"/conf/catalina.policy \
-Dcatalina.base="$CATALINA_BASE" \
-Dcatalina.home="$CATALINA_HOME" \
-Djava.io.tmpdir="$CATALINA_TMPDIR" \
org.apache.catalina.startup.Bootstrap "$@" start
else
exec "$_RUNJDB" $JAVA_OPTS $CATALINA_OPTS \
-Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
-sourcepath
"$CATALINA_HOME"/../../jakarta-tomcat-catalina/catalina/src/share \
-Dcatalina.base="$CATALINA_BASE" \
-Dcatalina.home="$CATALINA_HOME" \
-Djava.io.tmpdir="$CATALINA_TMPDIR" \
org.apache.catalina.startup.Bootstrap "$@" start
fi
fi
elif [ "$1" = "run" ]; then
shift
if [ "$1" = "-security" ] ; then
echo "Using Security Manager"
shift
exec "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
-Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
-Djava.security.manager \
-Djava.security.policy=="$CATALINA_BASE"/conf/catalina.policy \
-Dcatalina.base="$CATALINA_BASE" \
-Dcatalina.home="$CATALINA_HOME" \
-Djava.io.tmpdir="$CATALINA_TMPDIR" \
org.apache.catalina.startup.Bootstrap "$@" start
else
exec "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
-Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
-Dcatalina.base="$CATALINA_BASE" \
-Dcatalina.home="$CATALINA_HOME" \
-Djava.io.tmpdir="$CATALINA_TMPDIR" \
org.apache.catalina.startup.Bootstrap "$@" start
fi
elif [ "$1" = "start" ] ; then
shift
touch "$CATALINA_BASE"/logs/catalina.out
if [ "$1" = "-security" ] ; then
if [ "$gcj" = "yes" ]; then
echo "The java-gcj-compat-dev environment currently doesn't support"
echo "a security manager. Please check the TOMCAT5_SECURITY variable"
echo "in /etc/default/tomcat5.5."
exit 1
fi
echo "Using Security Manager"
shift
"$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
-Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
-Djava.security.manager \
-Djava.security.policy=="$CATALINA_BASE"/conf/catalina.policy \
-Dcatalina.base="$CATALINA_BASE" \
-Dcatalina.home="$CATALINA_HOME" \
-Djava.io.tmpdir="$CATALINA_TMPDIR" \
org.apache.catalina.startup.Bootstrap "$@" start \
>> "$CATALINA_BASE"/logs/catalina.out 2>&1 &
if [ ! -z "$CATALINA_PID" ]; then
echo $! > $CATALINA_PID
fi
else
"$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
-Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
-Dcatalina.base="$CATALINA_BASE" \
-Dcatalina.home="$CATALINA_HOME" \
-Djava.io.tmpdir="$CATALINA_TMPDIR" \
org.apache.catalina.startup.Bootstrap "$@" start \
>> "$CATALINA_BASE"/logs/catalina.out 2>&1 &
if [ ! -z "$CATALINA_PID" ]; then
echo $! > $CATALINA_PID
fi
fi
elif [ "$1" = "stop" ] ; then
shift
FORCE=0
if [ "$1" = "-force" ]; then
shift
FORCE=1
fi
"$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
-Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
-Dcatalina.base="$CATALINA_BASE" \
-Dcatalina.home="$CATALINA_HOME" \
-Djava.io.tmpdir="$CATALINA_TMPDIR" \
org.apache.catalina.startup.Bootstrap "$@" stop
if [ $FORCE -eq 1 ]; then
if [ ! -z "$CATALINA_PID" ]; then
echo "Killing: `cat $CATALINA_PID`"
kill -9 `cat $CATALINA_PID`
else
echo "Kill failed: \$CATALINA_PID not set"
fi
fi
elif [ "$1" = "version" ] ; then
"$_RUNJAVA" \
-classpath "$CATALINA_HOME/server/lib/catalina.jar" \
org.apache.catalina.util.ServerInfo
else
echo "Usage: catalina.sh ( commands ... )"
echo "commands:"
if $os400; then
echo " debug Start Catalina in a debugger (not available on
OS400)"
echo " debug -security Debug Catalina with a security manager (not
available on OS400)"
else
echo " debug Start Catalina in a debugger"
echo " debug -security Debug Catalina with a security manager"
fi
echo " jpda start Start Catalina under JPDA debugger"
echo " run Start Catalina in the current window"
echo " run -security Start in the current window with security manager"
echo " start Start Catalina in a separate window"
echo " start -security Start in a separate window with security manager"
echo " stop Stop Catalina"
echo " stop -force Stop Catalina (followed by kill -KILL)"
echo " version What version of tomcat are you running?"
exit 1
fi
#!/bin/sh
# -----------------------------------------------------------------------------
# Set CLASSPATH and Java options
#
# $Id: setclasspath.sh 345508 2005-11-18 15:54:56Z yoavs $
# -----------------------------------------------------------------------------
# First clear out the user classpath
CLASSPATH=
# Make sure prerequisite environment variables are set
if [ -z "$JAVA_HOME" -a -z "$JRE_HOME" ]; then
# Bugzilla 37284
if $darwin && [ -d
"/System/Library/Frameworks/JavaVM.framework/Versions/1.5/Home" ]; then
export
JAVA_HOME="/System/Library/Frameworks/JavaVM.framework/Versions/1.5/Home"
else
echo "Neither the JAVA_HOME nor the JRE_HOME environment variable is
defined"
echo "At least one of these environment variable is needed to run this
program"
exit 1
fi
fi
if [ -z "$JAVA_HOME" -a "$1" = "debug" ]; then
echo "JAVA_HOME should point to a JDK in order to run in debug mode."
exit 1
fi
if [ -z "$JRE_HOME" ]; then
JRE_HOME="$JAVA_HOME"
fi
# If we're running under jdb, we need a full jdk.
if [ "$1" = "debug" -o "$1" = "javac" ] ; then
if [ "$os400" = "true" ]; then
if [ ! -x "$JAVA_HOME"/bin/java -o ! -x "$JAVA_HOME"/bin/javac ]; then
echo "The JAVA_HOME environment variable is not defined correctly"
echo "This environment variable is needed to run this program"
echo "NB: JAVA_HOME should point to a JDK not a JRE"
exit 1
fi
else
if [ ! -x "$JAVA_HOME"/bin/java -o ! -x "$JAVA_HOME"/bin/jdb -o ! -x
"$JAVA_HOME"/bin/javac ]; then
echo "The JAVA_HOME environment variable is not defined correctly"
echo "This environment variable is needed to run this program"
echo "NB: JAVA_HOME should point to a JDK not a JRE"
exit 1
fi
fi
fi
if [ -z "$BASEDIR" ]; then
echo "The BASEDIR environment variable is not defined"
echo "This environment variable is needed to run this program"
exit 1
fi
if [ ! -x "$BASEDIR"/bin/setclasspath.sh ]; then
if $os400; then
# -x will Only work on the os400 if the files are:
# 1. owned by the user
# 2. owned by the PRIMARY group of the user
# this will not work if the user belongs in secondary groups
eval
else
echo "The BASEDIR environment variable is not defined correctly"
echo "This environment variable is needed to run this program"
exit 1
fi
fi
# Set the default -Djava.endorsed.dirs argument
JAVA_ENDORSED_DIRS="$BASEDIR"/common/endorsed
# Set standard CLASSPATH
if [ "$1" = "debug" -o "$1" = "javac" ] ; then
CLASSPATH="$JAVA_HOME"/lib/tools.jar
fi
# OSX hack to CLASSPATH
JIKESPATH=
if [ `uname -s` = "Darwin" ]; then
OSXHACK="/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Classes"
if [ -d "$OSXHACK" ]; then
for i in "$OSXHACK"/*.jar; do
JIKESPATH="$JIKESPATH":"$i"
done
fi
fi
# Set standard commands for invoking Java.
_RUNJAVA="$JRE_HOME"/bin/java
if [ "$os400" != "true" ]; then
_RUNJDB="$JAVA_HOME"/bin/jdb
fi
_RUNJAVAC="$JAVA_HOME"/bin/javac
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