通过Nagios监控weblogic服务
1.前言
前段时间搭建了一套Nagios监控服务，心血来潮想自己写一个脚本，拓展Nagios插件来监控公司的weblogic服务。
环境：weblogic10.3.3.0 、 CentOS6.5
1.首先介绍一些用命令行监控weblogic的方法
对于Weblogic运行状况的获得，我们是通过命令行的方式实现的，通过调用Weblogic的weblogic.Admin类实现的。既然要调用类，就要把/home/weblogic/Oracle/Middleware/wlserver_10.3/server/lib/weblogic.jar包配置导环境变量中。我通过修改原来配置JDK的环境变量中的CLASSPATH.编辑/etc/profile文件，
export CLASSPATH=.:/usr/java/jdk1.6.0_21/lib/dt.jar:/usr/java/jdk1.6.0_21/lib/tools.jar:/home/weblogic/Oracle/Middleware/wlserver_10.3/server/lib/weblogic.jar
1.1 证实weblogic server 是否正常
java weblogic.Admin -url t3://127.0.0.1:6088 -username weblogic1 -password weblogic1 PING count byte
返回结果：
1.2 查看weblogic server的版本
1 | java weblogic.Admin -url t3://127.0.0.1:6088 -username weblogic1 -password weblogic1 VERSION |
返回结果：
还有一种方法：java weblogic.version | grep -m 1 "."
weblogic.version | grep -m 1
1.3 获得server的运行状态
java weblogic.Admin -url ${URL} -username ${USER_NAME} -password ${PASS_WORD} get -pretty -mbean "${DOMAIN_NAME}:Location=${SERVER_NAME},Name=${SERVER_NAME},Type=ServerRuntime”
我的机器上的执行命令：
java weblogic.Admin -url t3://localhost:6088 -username weblogic1 -password weblogic1 GET -pretty -mbean "hb_circfnl_dom:Location=AdminServer,Name=AdminServer,Type=ServerRuntime"
返回结果：
1.4获得JDBC Pool运行状态
$ java weblogic.Admin -url ${URL} -username ${USER_NAME} -password ${PASS_WORD} GET -pretty -mbean "${DOMAIN_NAME}:Location=${SERVER_NAME},Name=${POOL_NAME},ServerRuntime=${SERVER_NAME},Type=JDBCConnectionPoolRuntime"
我的执行命令：
java weblogic.Admin -url t3://localhost:6088 -username weblogic1 -password weblogic1 GET -pretty -mbean "hb_circfnl_dom:Location=AdminServer,Name=circDataSource,ServerRuntime=AdminServer,Type=JDBCConnectionPoolRuntime"
返回结果：
2.利用1.3和1.4的方法根据Nagios Plugin API规则编写自己的shell实现脚本。。具体的shell脚本如下：
check_weblogic.sh
#! /bin/bash #check_weblogic.sh --jdbcpool url username password domainname servername poolname #check_weblogic.sh --server url username password domainname servername # -H host -p port -v "--type=<[jdbcpool|server]> --username username --password password --domain domainname --server servername [--pool poolname]" PROGNAME=`basename $0` PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'` REVISION=`echo '$Revision: 1749 $' | sed -e 's/[^0-9.]//g'` . $PROGPATH/utils.sh print_usage() { echo "Usage:" echo " $PROGNAME -H host -p port -v --type [jdbcpool|server] --username username --password password --domain domainname --server servername [--pool poolname] " echo " $PROGNAME --help" echo " $PROGNAME --version" } print_help() { print_revision $PROGNAME $REVISION echo "" print_usage echo "" echo "Check Weblogic status" echo "" } #parse weblogic parameters parse_wls_para() { # echo $@ while [ -n "$1" ] do case "$1" in --type) #type TYPE="$2" shift ;; --username) USER_NAME="$2" shift ;; --password) PASS_WORD="$2" shift ;; --domain) DOMAIN_NAME="$2" shift ;; --server) SERVER_NAME="$2" shift ;; --pool) POOL_NAME="$2" shift ;; *) print_usage exit $STATE_UNKNOWN ;; esac shift done #echo "TYPE:"$TYPE #echo "USER_NAME:"$USER_NAME #echo "PASS_WORD:"$PASS_WORD #echo "DOMAIN_NAME:"$DOMAIN_NAME #echo "SERVER_NAME:"$SERVER_NAME #echO "POOL_NAME:"$POOL_NAME } # check weblogic server information check_wls_server() { local URL="t3://${HOST_NAME}:${SERVER_PORT}" local SERVER_INFO="${DOMAIN_NAME}:${SERVER_NAME}" #echo "java weblogic.Admin -url ${URL} -username ${USER_NAME} -password ${PASS_WORD} get -pretty" #echo "-mbean "${DOMAIN_NAME}:Location=${SERVER_NAME},Name=${SERVER_NAME},Type=${SERVER_TYPE}"" tmpfile=`mktemp -t nagios.XXXXXX` #echo "tmpfile"$tmpfile java weblogic.Admin -url ${URL} -username ${USER_NAME} -password ${PASS_WORD} get -pretty \ -mbean "${DOMAIN_NAME}:Location=${SERVER_NAME},Name=${SERVER_NAME},Type=${SERVER_TYPE}" \ >${tmpfile} 2>&1 #echo "java weblogic.Admin -url ${URL} -username ${USER_NAME} -password ${PASS_WORD} get -pretty # -mbean "${DOMAIN_NAME}:Location=${SERVER_NAME},Name=${SERVER_NAME},Type=${SERVER_TYPE}" " local N=`cat ${tmpfile} | grep ^"-" | wc -l` #echo "N:"$N if [ $N -lt 1 ] then #error #echo "tmpfile"$tmpfile #cat ${tmpfile} ERR_INFO=`cat ${tmpfile} | awk '{ printf $0 }'` #echo "ERR_INFO:"$ERR_INFO echo "CRITICAL - ${ERR_INFO}" rm -f $tmpfile return $STATE_CRITICAL fi if [ $N -ge 1 ] then local HEALTH_STATE="" local RUN_STATE="" #HealthState State while read NAME VALUE do #PoolState WaitingForConnectionCurrentCount State #echo "NAME:${NAME} VALUE:${VALUE}" case "${NAME}" in HealthState:) HEALTH_STATE=${VALUE} ;; State:) RUN_STATE=${VALUE} ;; esac done < ${tmpfile} rm -f $tmpfile #echo "HEALTH_STATE:${HEALTH_STATE}" #echo "RUN_STATE:${RUN_STATE}" local HEALTH_STATE_INFO=${HEALTH_STATE} echo ${HEALTH_STATE_INFO} | awk -F, '{ print $1 }' | awk -F: '{ print $2 }' | read HEALTH_STATE #echo "HEALTH_STATE:${HEALTH_STATE}" #HEALTH_OK HEALTH_WARN HEALTH_CRITICAL HEALTH_FAILED if [[ "${RUN_STATE}" != "RUNNING" ]] then echo "CRITICAL - ${SERVER_INFO} State is ${RUN_STATE}" return $STATE_CRITICAL fi case "${HEALTH_STATE}" in EALTH_OK) ;; HEALTH_WARN) echo "WARN - ${SERVER_INFO} HealthState is ${HEALTH_STATE_INFO}" return $STATE_WARNING ;; HEALTH_CRITICAL) echo "CRITICAL - ${SERVER_INFO} HealthState is ${HEALTH_STATE_INFO}" return $STATE_CRITICAL ;; HEALTH_FAILED) echo "FAILED - ${SERVER_INFO} HealthState is ${HEALTH_STATE_INFO}" return $STATE_CRITICAL ;; esac fi echo "OK - ${SERVER_INFO} State is ${RUN_STATE},HealthState is ${HEALTH_STATE_INFO}" return $STATE_OK } # check weblogic jdbc pool information check_wls_jdbcpool() { local URL="t3://${HOST_NAME}:${SERVER_PORT}" local POOL_INFO="${DOMAIN_NAME}:${SERVER_NAME}:${POOL_NAME}" tmpfile=`mktemp -t nagios.XXXXXX` java weblogic.Admin -url ${URL} -username ${USER_NAME} -password ${PASS_WORD} GET -pretty \ -mbean "${DOMAIN_NAME}:Location=${SERVER_NAME},Name=${POOL_NAME},ServerRuntime=${SERVER_NAME},Type=${JDBC_TYPE}" \ > ${tmpfile} 2>&1 local N=`cat ${tmpfile} | grep ^"-" | wc -l` if [[ "$N" -lt "1" ]] then #error ERR_INFO=`cat ${tmpfile} | awk '{ printf $0 }'` echo "CRITICAL - ${ERR_INFO}" rm -f $tmpfile return $STATE_CRITICAL fi if [[ "$N" -ge "1" ]] then local POOL_STATE="" local WAIT_CNT="" local RUN_STATE="" while read NAME VALUE do #PoolState WaitingForConnectionCurrentCount State #echo "NAME:${NAME} VALUE:${VALUE}" case "${NAME}" in PoolState:) POOL_STATE=${VALUE} ;; WaitingForConnectionCurrentCount:) WAIT_CNT=${VALUE} ;; State:) RUN_STATE=${VALUE} ;; esac done < ${tmpfile} rm -f ${tmpfile} #echo "POOL_STATE:${POOL_STATE}" #echo "WAIT_CNT:${WAIT_CNT}" #echo "RUN_STATE:${RUN_STATE}" if [[ "${POOL_STATE}" != "true" ]] then echo "CRITICAL - ${POOL_INFO} PoolState is ${POOL_STATE}" return $STATE_CRITICAL fi if [[ "${RUN_STATE}" != "Running" ]] then echo "CRITICAL - ${POOL_INFO} State is ${RUN_STATE}" return $STATE_CRITICAL fi if [[ "${WAIT_CNT}" -gt "0" ]] then echo "WARNING - ${POOL_INFO} WaitingForConnectionCurrentCount is ${WAIT_CNT}" return $STATE_WARNING fi fi echo "OK - ${POOL_INFO} State is ${RUN_STATE},PoolState is ${POOL_STATE},WaitingForConnectionCurrentCount is ${WAIT_CNT}" return $STATE_OK } # do exit to delete tmpfile do_exit() { if [ -n "$tmpfile" ] && [ -f $tmpfile ] then rm -f ${tmpfile} fi } if [ -z "$JAVA_HOME" ] then echo "Please set JAVA_HOME!" exit $STATE_UNKNOWN fi if [ -z "$CLASSPATH" ] then echo "Please set CLASSPATH!" exit $STATE_UNKNOWN else echo $CLASSPATH | grep -q "weblogic.jar" if [ $? -ne 0 ] then echo "Please add weblogic.jar to CLASSPATH!" exit $STATE_UNKNOWN fi fi PATH=$JAVA_HOME/bin:$PATH export PATH JDBC_TYPE="JDBCConnectionPoolRuntime" SERVER_TYPE="ServerRuntime" cmd="$1" # Information options case "$cmd" in --help) print_help exit $STATE_OK ;; -h) print_help exit $STATE_OK ;; --version) print_revision $PROGNAME $REVISION exit $STATE_OK ;; -V) print_revision $PROGNAME $REVISION exit $STATE_OK ;; esac #set -- `getopt -q H:p:v: "$@"` #echo "$@" #parse input args while [ -n "$1" ] do # echo "\$1:"$1 case "$1" in -H) #host HOST_NAME="$2" shift ;; -p) #port SERVER_PORT="$2" shift ;; -v) WL_ARGS="$2" shift ;; --) shift break ;; *) print_usage #exit $STATE_UNKNOWN ;; esac shift done #echo "parse weblogic parameters" #parse weblogic parameters parse_wls_para $WL_ARGS #echo "end parse weblogic parameters" case "${TYPE}" in server) #server CHK_INFO=`check_wls_server` EXIT_STATE=$? echo $CHK_INFO do_exit exit $EXIT_STATE ;; jdbcpool) #jdbc pool CHK_INFO=`check_wls_jdbcpool` EXIT_STATE=$? echo $CHK_INFO do_exit exit $EXIT_STATE ;; *) print_usage exit $STATE_UNKNOWN ;; esac
2.1将脚本上传到Nagios软件的libexec目录下，并创建一个软连接文件check_weblogic
使用的方法如下，
check_weblogic.sh -H host -p port -v '--type
[jdbcpool|server] --username username --password password --domain
domainname --server servername [--pool poolname]'
2.2编辑被监控主机的nrpe.cfg文件，增加如下内容，
#check weblogic [check_wls]
command[check_wls_mydomain_myserver]=sudo su - weblogic -c "/usr/local/nagios/libexec/check_weblogic -H localhost -p 6088 -v '--type server --username weblogic1 --password weblogic1 --domain hb_circfnl_dom --server AdminServer'" ommand[check_wls_jdbcpool_mypool]=sudo su - weblogic -c "/usr/local/nagios/libexec/check_weblogic -H localhost -p 6088 -v '--type jdbcpool --username weblogic1 --password weblogic1 --domain hb_circfnl_dom --server AdminServer --pool circDataSource'"
编辑 /etc/sudoers文件
#vim /etc/sudoers
nagios ALL=(ALL) NOPASSWD:/usr/local/nagios/libexec/check_tablespace.sh
同时得注释掉一下行，表示不需要控制终端
#Defaults requiretty
否则会出现：NRPE: Unable to read output 错误
#########################################################################################
PS：这一步我搞了很久，不是提示Unable to read output 错误，就是提示：“Please set JAVA_HOME!”，事后分析具体原因写在这，免得走弯路，前面是在root环境下执行的，但是监控主机是和nagios用户交流的，所以必须在nagios运行命令，而监控的命令调用的是weblogic用户的的方法，所以的切得切换到weblogic用户下执行命令。本来想用sudo命令，发现不行，还得结合su命令。入下图所示：
2.3编辑监控主机的/usr/local/nagios/etc/objects/services.cfg文件（该文件是自己新增的）并且被监控的这台主机也应该在host.cfg中定义好，增加如下内容
define service{ use local-service host_name weblogic service_description Weblogic Server check_command check_nrpe!check_wls_mydomain_myserver } define service{ use local-service host_name weblogic service_description Weblogic JDBCPool check_command check_nrpe!check_wls_jdbcpool_mypool }
3.检查是否成功
3.1重启被监控主机的nrpe
service xinetd restart
3.2重启nagios服务
service nagios restart
3.3进入监控界面
参考资料：
http://skymax.blog.51cto.com/365901/101603
http://blog.csdn.net/forest_hou/article/details/5468239
http://blog.itpub.net/228190/viewspace-586512/
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