Cassandra導入メモ

/*
* Cassandra(カサンドラ)
*/
http://wiki.apache.org/cassandra/FrontPage
http://labs.unoh.net/2010/08/cassandra.html
http://www.pablowe.net/2010/03/cassandra-quick-install-on-centos-5/

cd /usr/local
//ここでダウンロード・展開
ln -s apache-cassandra-* cassandra
cd cassandra

//batは使わないので-x
chmod a-x bin/*.bat

groupadd cassandra
useradd -d /usr/local/cassandra -c Cassandra -g cassandra cassandra
chown cassandra:cassandra -R /usr/local/cassandra/*
mkdir -p /var/lib/cassandra; chown cassandra:cassandra /var/lib/cassandra
mkdir -p /var/log/cassandra; chown cassandra:cassandra /var/log/cassandra

//あとはconfを変更する
//cassandra.yamlでは基本的なディレクトリなどの設定
//cassandra-env.shのJMX_PORTなど(default:8080)


//起動用shell
cd /etc/init.d
wget http://www.pablowe.net/cassandra
vi cassandra
------------------------------------------------------------
#!/bin/bash
#
# /etc/init.d/cassandra
#
# Startup script for Cassandra
# http://www.pablowe.net/cassandra
#
# chkconfig: 2345 20 80
# description: Starts and stops Cassandra

#export JAVA_HOME=/usr/java/default
export CASSANDRA_HOME=/usr/local/cassandra/
export CASSANDRA_INCLUDE=/usr/local/cassandra/bin/cassandra.in.sh
export CASSANDRA_CONF=/usr/local/cassandra/conf
export CASSANDRA_OWNR=cassandra
export PATH=$PATH:$CASSANDRA_HOME/bin
log_file=/var/log/cassandra/cassandra.log
pid_file=/var/lib/cassandra/cassandra.pid

if [ ! -f $CASSANDRA_HOME/bin/cassandra -o ! -d $CASSANDRA_HOME ]
then
echo "Cassandra startup: cannot start"
exit 1
fi

case "$1" in
start)
# Cassandra startup
echo -n "Starting Cassandra: "
su $CASSANDRA_OWNR -c "$CASSANDRA_HOME/bin/cassandra -p $pid_file" > $log_file 2>&1
echo "OK"
;;
stop)
# Cassandra shutdown
echo -n "Shutdown Cassandra: "
su $CASSANDRA_OWN -c "kill `cat $pid_file`"
echo "OK"
;;
reload|restart)
$0 stop
$0 start
;;
status)
;;
*)
echo "Usage: `basename $0` start|stop|restart|reload"
exit 1
esac

exit 0

-----------------------------------------------------------------

chmod +x /etc/init.d/cassandra
chkconfig --add cassandra
chkconfig cassandra on

//実際はコンフィグとかログ変更があるけどここまでで動く
service cassandra start

//PATHとJAVA_HOMEを宣言しておく
vi /etc/profile
//一番下でよいので下記3行追加
//Ver SL6.0
export JAVA_HOME=/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64
export CLASS_PATH=$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin:/usr/local/cassandra/bin