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January 5, 2017 20:04
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Tomcat 8 setclasspath, configures grails environment and some performance options
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#!/bin/sh | |
# Licensed to the Apache Software Foundation (ASF) under one or more | |
# contributor license agreements. See the NOTICE file distributed with | |
# this work for additional information regarding copyright ownership. | |
# The ASF licenses this file to You under the Apache License, Version 2.0 | |
# (the "License"); you may not use this file except in compliance with | |
# the License. You may obtain a copy of the License at | |
# | |
# http://www.apache.org/licenses/LICENSE-2.0 | |
# | |
# Unless required by applicable law or agreed to in writing, software | |
# distributed under the License is distributed on an "AS IS" BASIS, | |
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
# See the License for the specific language governing permissions and | |
# limitations under the License. | |
# ----------------------------------------------------------------------------- | |
# Set JAVA_HOME or JRE_HOME if not already set, ensure any provided settings | |
# are valid and consistent with the selected start-up options and set up the | |
# endorsed directory. | |
# ----------------------------------------------------------------------------- | |
# Make sure prerequisite environment variables are set | |
if [ -z "$JAVA_HOME" -a -z "$JRE_HOME" ]; then | |
if $darwin; then | |
# Bugzilla 54390 | |
if [ -x '/usr/libexec/java_home' ] ; then | |
export JAVA_HOME=`/usr/libexec/java_home` | |
# Bugzilla 37284 (reviewed). | |
elif [ -d "/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home" ]; then | |
export JAVA_HOME="/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home" | |
fi | |
else | |
JAVA_PATH=`which java 2>/dev/null` | |
if [ "x$JAVA_PATH" != "x" ]; then | |
JAVA_PATH=`dirname $JAVA_PATH 2>/dev/null` | |
JRE_HOME=`dirname $JAVA_PATH 2>/dev/null` | |
fi | |
if [ "x$JRE_HOME" = "x" ]; then | |
# XXX: Should we try other locations? | |
if [ -x /usr/bin/java ]; then | |
JRE_HOME=/usr | |
fi | |
fi | |
fi | |
if [ -z "$JAVA_HOME" -a -z "$JRE_HOME" ]; then | |
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 [ "$1" = "debug" ] ; then | |
if [ "$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 "$JAVA_HOME"/bin/javac ]; then | |
echo "The JAVA_HOME environment variable is not defined correctly" | |
echo "This environment variable is needed to run this program" | |
echo "NB: JAVA_HOME should point to a JDK not a JRE" | |
exit 1 | |
fi | |
fi | |
fi | |
# Don't override the endorsed dir if the user has set it previously | |
if [ -z "$JAVA_ENDORSED_DIRS" ]; then | |
# Set the default -Djava.endorsed.dirs argument | |
JAVA_ENDORSED_DIRS="$CATALINA_HOME"/endorsed | |
fi | |
# Set standard commands for invoking Java, if not already set. | |
if [ -z "$_RUNJAVA" ]; then | |
_RUNJAVA="$JRE_HOME"/bin/java | |
fi | |
if [ "$os400" != "true" ]; then | |
if [ -z "$_RUNJDB" ]; then | |
_RUNJDB="$JAVA_HOME"/bin/jdb | |
fi | |
fi | |
#sets grails environment | |
CATALINA_OPTS="${CATALINA_OPTS} -Dgrails.env=test" | |
#sets server memory | |
CATALINA_OPTS="-server -noverify -Xshare:off -Xms1024M -XX:MaxPermSize=1024M -XX:PermSize=256M -XX:+UseParallelGC" | |
#sets some jvm performance options | |
CATALINA_OPTS="${CATALINA_OPTS} -Djava.net.preferIPv4Stack=true -XX:+EliminateLocks -XX:+UseBiasedLocking" | |
# optional setting: MaxJavaStackTraceDepth, it reduces performance overhead of long exception stacktraces by limiting their size to 100 stacktrace elements | |
# You should eliminate all exceptions (even catched) to get good Grails performance | |
# always use some JVM profiler (for example Yourkit YJP) to see if any exceptions are created during normal program flow | |
# Grails and Groovy create some exceptions in initializations but after a few requests, no new exceptions should be created. | |
CATALINA_OPTS="${CATALINA_OPTS} -XX:MaxJavaStackTraceDepth=100" | |
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