JNDI 는 자바 애플리케이션 서버라면 거의 다 지원하는 기능이다. 이는 특정한 자원의 접근을 디렉토리 접근하듯이 하도록 해준다. 여기서 자원이라면 대부분 외부 서버에 있는 저장소들을 말한다. MySQL, PostgreSQL, Oracle, MS SQL 등 외부 저장소에 접속할때마다 저수준의 드라이버를 올리고 인증을 넣는게 아니라 자바 애플리케이션이 구동되면서 접속하을 해놓고 이것을 디렉토리화해서 올려놓으면 자바 애플리케이션에서는 이 디렉토리에 접근하는 것만으로 외부자원에 접속이 끝이 나게 되어 간편해진다. 이 글은 JBoss EAP 5 MySQL JNDI 설정에 관한 글이다. MySQL Connector/j MySQL에서는 자바 애플리케이션을 위해서 접속 드라이버를 제공한다. jar […]
JBoss EAP
Ubuntu 14.04 의 JBoss EAP 5.2 init 스크립트
JBoss EAP 5.2 를 Ubuntu 14.04 에서 운영할 경우에 서비스 시작을 init 에 등록하기 위한 스크립트. Wildfly 에 내용을 가지고 와서 마이그레이션 했다.
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#!/bin/bash # # /etc/init.d/jboss-SvrAPI01 -- startup script for jboss of SvrAPI01 # # NAME="systemV" DEFAULT="/opt/jboss/domains/${NAME}/jboss-env.sh" DESC="Jboss EAP 5.2 Application Server for $NAME" # clear work and tmp dirs? CLEAR_WORK_TMP="Y" HOST_NAME=`/sbin/ifconfig ens3|grep 'inet addr:'|awk '{print $2}'|awk -F : '{print $2}'` # Check privilege if [ `id -u` -ne 0 ]; then echo "You need root privileges to run this script" exit 1 fi # Make sure wildfly is started with system locale if [ -r /etc/default/locale ]; then . /etc/default/locale export LANG fi . /lib/lsb/init-functions if [ -r /etc/default/rcS ]; then . /etc/default/rcS fi # Overwrite settings from default file if [ -f "$DEFAULT" ]; then . "$DEFAULT" fi # Setup the JVM if [ -z "$JAVA" ]; then if [ -n "$JAVA_HOME" ]; then JAVA="$JAVA_HOME/bin/java" else JAVA="java" fi fi # Check if wildfly is installed if [ ! -f "$JBOSS_HOME/bin/run.jar" ]; then log_failure_msg "$NAME is not installed in \"$JBOSS_HOME\"" exit 1 fi # Run as wildfly user # Example of user creation for Debian based: # adduser --system --group --no-create-home --home $JBOSS_HOME --disabled-login wildfly if [ -z "$JBOSS_USER" ]; then JBOSS_USER=sbhyun fi # Check wildfly user id $JBOSS_USER > /dev/null 2>&1 if [ $? -ne 0 -o -z "$JBOSS_USER" ]; then log_failure_msg "User \"$JBOSS_USER\" does not exist..." exit 1 fi # Check owner of JBOSS_HOME if [ ! $(stat -L -c "%U" "$JBOSS_HOME") = $JBOSS_USER ]; then log_failure_msg "The user \"$JBOSS_USER\" is not owner of \"$JBOSS_HOME\"" exit 1 fi # The amount of time to wait for startup if [ -z "$STARTUP_WAIT" ]; then STARTUP_WAIT=120 fi # The amount of time to wait for shutdown if [ -z "$SHUTDOWN_WAIT" ]; then SHUTDOWN_WAIT=120 fi # Location to keep the console log if [ -z "$JBOSS_CONSOLE_LOG" ]; then JBOSS_CONSOLE_LOG="$SERVER_HOME/$SERVER_NAME/log/console.log" fi export JBOSS_CONSOLE_LOG touch $JBOSS_CONSOLE_LOG chown $JBOSS_USER $JBOSS_CONSOLE_LOG # Location to set the pid file JBOSS_PIDFILE="$SERVER_HOME/$SERVER_NAME/run/$SERVER_NAME.pid" export JBOSS_PIDFILE # Launch Jboss in background LAUNCH_JBOSS_IN_BACKGROUND=1 export LAUNCH_JBOSS_IN_BACKGROUND function cleanWorkTmp() { # clean tmp and work dirs echo "clean work and tmp dirs from ${SERVER_NAME}..." rm -Rf "${SERVER_HOME}/${SERVER_NAME}/work" rm -Rf "${SERVER_HOME}/${SERVER_NAME}/tmp" } function jbossPID() { # try get the JVM PID local jbossPID="x" jbossPID=$(ps -eo pid,cmd | grep "org.jboss.Main" | grep "${DOMAIN_IP}" | grep "${SERVER_NAME}" | grep -v grep | cut -c1-6) echo "$jbossPID" } # Helper function to check status of Jboss service check_status() { pidofproc -p "$JBOSS_PIDFILE" "$JAVA" >/dev/null 2>&1 } START_SCRIPT="$JBOSS_HOME/bin/run.sh" SHUTDOWN_SCRIPT="$JAVA -classpath $JBOSS_HOME/bin/shutdown.jar:$JBOSS_HOME/client/jnet.jar org.jboss.Shutdown --shutdown -s jnp://$DOMAIN_IP:$JNP_PORT -u $JBOSS_ADMIN_USER -p $JBOSS_ADMIN_PWD" case "$1" in start) log_daemon_msg "Starting $DESC" log_daemon_msg "instance $SERVER_NAME at $DOMAIN_IP ..." check_status status_start=$? if [ $status_start -eq 3 ]; then mkdir -p $(dirname "$JBOSS_PIDFILE") mkdir -p $(dirname "$JBOSS_CONSOLE_LOG") cat /dev/null > "$JBOSS_CONSOLE_LOG" su -l $JBOSS_USER -c "source $DEFAULT; $START_SCRIPT $JBOSS_OPTS --host $HOST_NAME -c $SERVER_NAME -b $DOMAIN_IP > ${JBOSS_CONSOLE_LOG} 2>&1 &" count=0 launched=0 until [ $count -gt $STARTUP_WAIT ] do grep 'Started in' "$JBOSS_CONSOLE_LOG" > /dev/null if [ $? -eq 0 ] ; then launched=1 break fi sleep 1 count=$((count + 1)); done if [ $launched -eq 1 ] ; then echo `jbossPID` > $JBOSS_PIDFILE chown $JBOSS_USER $(dirname "$JBOSS_PIDFILE") || true fi if check_status; then log_end_msg 0 else log_end_msg 1 fi if [ $launched -eq 0 ]; then log_warning_msg "$DESC hasn't started within the timeout allowed" log_warning_msg "please review file \"$JBOSS_CONSOLE_LOG\" to see the status of the service" fi elif [ $status_start -eq 1 ]; then log_failure_msg "$DESC is not running but the pid file exists" exit 1 elif [ $status_start -eq 0 ]; then log_success_msg "$DESC (already running)" fi ;; stop) check_status status_stop=$? if [ $status_stop -eq 0 ]; then read kpid < "$JBOSS_PIDFILE" log_daemon_msg "Stopping $DESC" su -l $JBOSS_USER -c "source $DEFAULT; $SHUTDOWN_SCRIPT" count=0 until [ $count -gt $SHUTDOWN_WAIT ] do if ! check_status; then break fi sleep 1 count=$((count + 1)); done if check_status; then kill -9 $kpid fi if [ "$CLEAR_WORK_TMP" = "Y" ]; then cleanWorkTmp fi rm "$JBOSS_PIDFILE" log_end_msg 0 elif [ $status_stop -eq 1 ]; then log_action_msg "$DESC is not running but the pid file exists, cleaning up" rm -f $JBOSS_PIDFILE elif [ $status_stop -eq 3 ]; then log_action_msg "$DESC is not running" fi ;; restart) check_status status_restart=$? if [ $status_restart -eq 0 ]; then $0 stop fi $0 start ;; status) check_status status=$? if [ $status -eq 0 ]; then read pid < $JBOSS_PIDFILE log_action_msg "$DESC is running with pid $pid" exit 0 elif [ $status -eq 1 ]; then log_action_msg "$DESC is not running and the pid file exists" exit 1 elif [ $status -eq 3 ]; then log_action_msg "$DESC is not running" exit 3 else log_action_msg "Unable to determine $NAME status" exit 4 fi ;; *) log_action_msg "Usage: $0 {start|stop|restart|reload|force-reload|status}" exit 2 ;; esac exit 0 |
아래는 jboss-env.sh 의 내용.
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#!/bin/sh # jboss-env.sh - starts a new shell with instance variables set ## set jboss base env export JBOSS_HOME="/opt/jboss/jboss-as" export SERVER_HOME="/opt/jboss/domains" export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/opt/jboss/lib" export JBOSS_USER=sbhyun export SERVER_NAME=systemV export DOMAIN_IP=0.0.0.0 export JNP_PORT=1199 export JAVA_HOME=/opt/java export CLASSPATH=.:/opt/java/jre/lib export PATH=$JAVA_HOME/bin:$JBOSS_HOME/bin:$PATH # JMX Credentials JMX_CREDETIALS_FILE="$SERVER_HOME/$SERVER_NAME/conf/props/jmx-console-users.properties" JMX_USER=$(cat $JMX_CREDETIALS_FILE | grep -v '#' | cut -d '=' -f 1 | head -n 1) JMX_PWD="$(cat $JMX_CREDETIALS_FILE | grep -v '#' | cut -d '=' -f 2 | head -n 1 | tr -d '\r')" JBOSS_ADMIN_USER=${JMX_USER:-"admin"} JBOSS_ADMIN_PWD=${JMX_PWD:-"admin"} if [ "x$JBOSS_OPTS" = "x" ]; then JBOSS_OPTS="-Dserver=$SERVER_NAME" JBOSS_OPTS="$JBOSS_OPTS -Djboss.server.base.dir=$SERVER_HOME" JBOSS_OPTS="$JBOSS_OPTS -Djboss.server.base.url=file://$SERVER_HOME" JBOSS_OPTS="$JBOSS_OPTS -Djboss.server.log.dir=$SERVER_HOME/$SERVER_NAME/log" #JBOSS_OPTS="$JBOSS_OPTS -Djboss.server.log.threshold=DEBUG" JBOSS_OPTS="$JBOSS_OPTS -Djboss.messaging.ServerPeerID=2" JBOSS_OPTS="$JBOSS_OPTS -Djboss.service.binding.set=ports-01" JBOSS_OPTS="$JBOSS_OPTS -Djboss.partition.name=systemV" JBOSS_OPTS="$JBOSS_OPTS -Djboss.default.jgroups.stack=tcp" JBOSS_OPTS="$JBOSS_OPTS -Djboss.jgroups.tcp.tcpping.initial_hosts=192.168.96.30[7700],192.168.96.31[7701]" JBOSS_OPTS="$JBOSS_OPTS -Djboss.jgroups.tcp.tcp_port=7600" JBOSS_OPTS="$JBOSS_OPTS -Djboss.jgroups.bind.address=192.168.96.30" #JBOSS_OPTS="$JBOSS_OPTS -Djgroups.bind_addr=228.2.2.2" #JBOSS_OPTS="$JBOSS_OPTS -Djboss.jgroups.tcp.tcp_port=7600" #JBOSS_OPTS="$JBOSS_OPTS -Djboss.partition.udpGroup=228.2.2.2" #JBOSS_OPTS="$JBOSS_OPTS -Djboss.hapartition.mcast_port=44552" fi if [ "x$JAVA_OPTS" = "x" ]; then JAVA_OPTS="-server" JAVA_OPTS="$JAVA_OPTS -noverify" JAVA_OPTS="$JAVA_OPTS -Xms512m" JAVA_OPTS="$JAVA_OPTS -Xmx512m" JAVA_OPTS="$JAVA_OPTS -XX:PermSize=128m" JAVA_OPTS="$JAVA_OPTS -XX:MaxPermSize=128m" #JAVA_OPTS="$JAVA_OPTS -Xss128k" JAVA_OPTS="$JAVA_OPTS -verbose:gc" JAVA_OPTS="$JAVA_OPTS -Xloggc:$SERVER_HOME/$SERVER_NAME/gclog/gc.log" JAVA_OPTS="$JAVA_OPTS -XX:+PrintGCDetails" JAVA_OPTS="$JAVA_OPTS -XX:+PrintGCTimeStamps" JAVA_OPTS="$JAVA_OPTS -XX:+PrintHeapAtGC" JAVA_OPTS="$JAVA_OPTS -XX:+HeapDumpOnOutOfMemoryError" JAVA_OPTS="$JAVA_OPTS -XX:HeapDumpPath=$SERVER_HOME/$SERVER_NAME/gclog/java_pid.hprof" # JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote" # JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote.port=8286" # JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote.ssl=false" # JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote.authenticate=false" JAVA_OPTS="$JAVA_OPTS -Djava.net.preferIPv4Stack=true" JAVA_OPTS="$JAVA_OPTS -Dsun.rmi.dgc.client.gcInterval=3600000" JAVA_OPTS="$JAVA_OPTS -Dsun.rmi.dgc.server.gcInterval=3600000" JAVA_OPTS="$JAVA_OPTS -Dsun.lang.ClassLoader.allowArraySyntax=true " fi export JBOSS_OPTS JAVA_OPTS |
JBoss EAP
TCP 기반 JBoss 5 Clustering 하기
AWS EC2 에서 JBoss EAP 5.2 를 설치하고 운영할때에 보통 클러스터링을 설정하게 된다. 문제는 JBoss EAP 5.2 에서 클러스터링은 JGroup 을 기반으로 작성되어 있다. 중요한 것은 클러스터링을 할때에 Multicast UDP 를 사용한다는 것인데, AWS EC2 에서는 Multicast 자체를 지원하지 않는다. 따라서 JBoss EAP 5.2 를 AWS EC2 에서 운영하면서 클러스터링을 기본 설정값으로 설정하고 실행시키면 클러스터링이 되지 않는다. 이럴때 TCP 를 이용하면 가능해진다. 이 포스트는 AWS EC2 에서 TCP 기반 JBoss Clustering 에 관련된 내용이다. MPING을 TCPPING으로 바꾸기 Cluster 의 프로토콜 […]