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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.
# OPTIONS:
# -f: start in foreground
# -p <filename>: log the pid to a file (useful to kill it later)
# -v: print version string and exit
# CONTROLLING STARTUP:
#
# This script relies on few environment variables to determine startup
# behavior, those variables are:
#
# CLASSPATH -- A Java classpath containing everything necessary to run.
# JVM_OPTS -- Additional arguments to the JVM for heap size, etc
# CASSANDRA_CONF -- Directory containing Cassandra configuration files.
#
# As a convenience, a fragment of shell is sourced in order to set one or
# more of these variables. This so-called `include' can be placed in a
# number of locations and will be searched for in order. The lowest
# priority search path is the same directory as the startup script, and
# since this is the location of the sample in the project tree, it should
# almost work Out Of The Box.
#
# Any serious use-case though will likely require customization of the
# include. For production installations, it is recommended that you copy
# the sample to one of /usr/share/cassandra/cassandra.in.sh,
# /usr/local/share/cassandra/cassandra.in.sh, or
# /opt/cassandra/cassandra.in.sh and make your modifications there.
#
# Another option is to specify the full path to the include file in the
# environment. For example:
#
# $ CASSANDRA_INCLUDE=/path/to/in.sh cassandra -p /var/run/cass.pid
#
# Note: This is particularly handy for running multiple instances on a
# single installation, or for quick tests.
#
# Finally, developers and enthusiasts who frequently run from an SVN
# checkout, and do not want to locally modify bin/cassandra.in.sh, can put
# a customized include file at ~/.cassandra.in.sh.
#
# If you would rather configure startup entirely from the environment, you
# can disable the include by exporting an empty CASSANDRA_INCLUDE, or by
# ensuring that no include files exist in the aforementioned search list.
# Be aware that you will be entirely responsible for populating the needed
# environment variables.
# NB: Developers should be aware that this script should remain compatible with
# POSIX sh and Solaris sh. This means, in particular, no $(( )) and no $( ).
# If an include wasn't specified in the environment, then search for one...
if [ "x$CASSANDRA_INCLUDE" = "x" ]; then
# Locations (in order) to use when searching for an include file.
for include in "`dirname "$0"`/cassandra.in.sh" \
"$HOME/.cassandra.in.sh" \
/usr/share/cassandra/cassandra.in.sh \
/usr/local/share/cassandra/cassandra.in.sh \
/opt/cassandra/cassandra.in.sh; do
if [ -r "$include" ]; then
. "$include"
break
fi
done
# ...otherwise, source the specified include.
elif [ -r "$CASSANDRA_INCLUDE" ]; then
. "$CASSANDRA_INCLUDE"
fi
# Use JAVA_HOME if set, otherwise look for java in PATH
if [ -n "$JAVA_HOME" ]; then
# Why we can't have nice things: Solaris combines x86 and x86_64
# installations in the same tree, using an unconventional path for the
# 64bit JVM. Since we prefer 64bit, search the alternate path first,
# (see https://issues.apache.org/jira/browse/CASSANDRA-4638).
for java in "$JAVA_HOME"/bin/amd64/java "$JAVA_HOME"/bin/java; do
if [ -x "$java" ]; then
JAVA="$java"
break
fi
done
else
JAVA=java
fi
if [ -z $JAVA ] ; then
echo Unable to find java executable. Check JAVA_HOME and PATH environment variables. > /dev/stderr
exit 1;
fi
# If numactl is available, use it. For Cassandra, the priority is to
# avoid disk I/O. Even for the purpose of CPU efficiency, we don't
# really have CPU<->data affinity anyway. Also, empirically test that numactl
# works before trying to use it (CASSANDRA-3245).
NUMACTL_ARGS="--interleave=all"
if which numactl >/dev/null 2>/dev/null && numactl $NUMACTL_ARGS ls / >/dev/null 2>/dev/null
then
NUMACTL="numactl $NUMACTL_ARGS"
else
NUMACTL=""
fi
if [ -z "$CASSANDRA_CONF" -o -z "$CLASSPATH" ]; then
echo "You must set the CASSANDRA_CONF and CLASSPATH vars" >&2
exit 1
fi
if [ -f "$CASSANDRA_CONF/cassandra-env.sh" ]; then
. "$CASSANDRA_CONF/cassandra-env.sh"
fi
# Special-case path variables.
case "`uname`" in
CYGWIN*)
CLASSPATH=`cygpath -p -w "$CLASSPATH"`
CASSANDRA_CONF=`cygpath -p -w "$CASSANDRA_CONF"`
;;
esac
# Cassandra uses an installed jemalloc via LD_PRELOAD / DYLD_INSERT_LIBRARIES by default to improve off-heap
# memory allocation performance. The following code searches for an installed libjemalloc.dylib/.so/.1.so using
# Linux and OS-X specific approaches.
# To specify your own libjemalloc in a different path, configure the fully qualified path in CASSANDRA_LIBJEMALLOC.
# To disable jemalloc preload at all, set CASSANDRA_LIBJEMALLOC=-
#
#CASSANDRA_LIBJEMALLOC=
#
find_library()
{
pattern=$1
path=$(echo ${2} | tr ":" " ")
find $path -regex "$pattern" -print 2>/dev/null | head -n 1
}
case "`uname -s`" in
Linux)
if [ -z $CASSANDRA_LIBJEMALLOC ] ; then
which ldconfig > /dev/null 2>&1
if [ $? = 0 ] ; then
# e.g. for CentOS
dirs="/lib64 /lib /usr/lib64 /usr/lib `ldconfig -v 2>/dev/null | grep -v '^\s' | sed 's/^\([^:]*\):.*$/\1/'`"
else
# e.g. for Debian, OpenSUSE
dirs="/lib64 /lib /usr/lib64 /usr/lib `cat /etc/ld.so.conf /etc/ld.so.conf.d/*.conf | grep '^/'`"
fi
dirs=`echo $dirs | tr " " ":"`
CASSANDRA_LIBJEMALLOC=$(find_library '.*/libjemalloc\.so\(\.1\)*' $dirs)
fi
if [ ! -z $CASSANDRA_LIBJEMALLOC ] ; then
export JVM_OPTS="$JVM_OPTS -Dcassandra.libjemalloc=$CASSANDRA_LIBJEMALLOC"
if [ "-" != "$CASSANDRA_LIBJEMALLOC" ] ; then
export LD_PRELOAD=$CASSANDRA_LIBJEMALLOC
fi
fi
;;
Darwin)
if [ -z $CASSANDRA_LIBJEMALLOC ] ; then
CASSANDRA_LIBJEMALLOC=$(find_library '.*/libjemalloc\.dylib' $DYLD_LIBRARY_PATH:${DYLD_FALLBACK_LIBRARY_PATH-$HOME/lib:/usr/local/lib:/lib:/usr/lib})
fi
if [ ! -z $CASSANDRA_LIBJEMALLOC ] ; then
export JVM_OPTS="$JVM_OPTS -Dcassandra.libjemalloc=$CASSANDRA_LIBJEMALLOC"
if [ "-" != "$CASSANDRA_LIBJEMALLOC" ] ; then
export DYLD_INSERT_LIBRARIES=$CASSANDRA_LIBJEMALLOC
fi
fi
;;
esac
launch_service()
{
pidpath="$1"
foreground="$2"
props="$3"
class="$4"
cassandra_parms="-Dlogback.configurationFile=logback.xml"
cassandra_parms="$cassandra_parms -Dcassandra.logdir=$CASSANDRA_HOME/logs"
cassandra_parms="$cassandra_parms -Dcassandra.storagedir=$cassandra_storagedir"
if [ "x$pidpath" != "x" ]; then
cassandra_parms="$cassandra_parms -Dcassandra-pidfile=$pidpath"
fi
# The cassandra-foreground option will tell CassandraDaemon not
# to close stdout/stderr, but it's up to us not to background.
if [ "x$foreground" != "x" ]; then
cassandra_parms="$cassandra_parms -Dcassandra-foreground=yes"
exec $NUMACTL "$JAVA" $JVM_OPTS $cassandra_parms -cp "$CLASSPATH" $props "$class"
# Startup CassandraDaemon, background it, and write the pid.
else
exec $NUMACTL "$JAVA" $JVM_OPTS $cassandra_parms -cp "$CLASSPATH" $props "$class" <&- &
[ ! -z "$pidpath" ] && printf "%d" $! > "$pidpath"
true
fi
return $?
}
# Parse any command line options.
args=`getopt vRfhp:bD:H:E: "$@"`
eval set -- "$args"
classname="org.apache.cassandra.service.CassandraDaemon"
while true; do
case "$1" in
-p)
pidfile="$2"
shift 2
;;
-f)
foreground="yes"
shift
;;
-h)
echo "Usage: $0 [-f] [-h] [-p pidfile] [-H dumpfile] [-E errorfile]"
exit 0
;;
-v)
"$JAVA" -cp "$CLASSPATH" org.apache.cassandra.tools.GetVersion
exit 0
;;
-R)
allow_root="yes"
shift
;;
-D)
properties="$properties -D$2"
shift 2
;;
-H)
properties="$properties -XX:HeapDumpPath=$2"
shift 2
;;
-E)
properties="$properties -XX:ErrorFile=$2"
shift 2
;;
--)
shift
if [ "x$*" != "x" ] ; then
echo "Error parsing arguments! Unknown argument \"$*\"" >&2
exit 1
fi
break
;;
*)
echo "Error parsing arguments! Unknown argument \"$1\"" >&2
exit 1
;;
esac
done
if [ "x$allow_root" != "xyes" ] ; then
if [ "`id -u`" = "1" ] || [ "`id -g`" = "0" ] ; then
echo "Running Cassandra as root user or group is not recommended - please start Cassandra using a different system user."
echo "If you really want to force running Cassandra as root, use -R command line option."
exit 1
fi
fi
# see CASSANDRA-7254
"$JAVA" -cp "$CLASSPATH" $JVM_OPTS 2>&1 | grep -q 'Error: Exception thrown by the agent : java.lang.NullPointerException'
if [ $? -ne "1" ]; then
echo Unable to bind JMX, is Cassandra already running?
exit 1;
fi
# Start up the service
launch_service "$pidfile" "$foreground" "$properties" "$classname"
exit $?
# vi:ai sw=4 ts=4 tw=0 et
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