zabbix 监控 tomcat

一,　　脚本监控文件

　　　　

#!/bin/bash
# @Function
# Find out the highest cpu consumed threads of java, and print the stack of these threads.
#
# @Usage
#   $ ./show-busy-java-threads.sh
#
# @author Jerry Lee

readonly PROG=`basename $0`
readonly -a COMMAND_LINE=("$0" "$@")

usage() {
    cat <<EOF
Usage: ${PROG} [OPTION]...
Find out the highest cpu consumed threads of java, and print the stack of these threads.
Example: ${PROG} -c 10

Options:
    -p, --pid       find out the highest cpu consumed threads from the specifed java process,
                    default from all java process.
    -c, --count     set the thread count to show, default is 5
    -h, --help      display this help and exit
EOF
    exit $1
}

readonly ARGS=`getopt -n "$PROG" -a -o c:p:h -l count:,pid:,help -- "$@"`
[ $? -ne 0 ] && usage 1
eval set -- "${ARGS}"

while true; do
    case "$1" in
    -c|--count)
        count="$2"
        shift 2
        ;;
    -p|--pid)
        pid="$2"
        shift 2
        ;;
    -h|--help)
        usage
        ;;
    --)
        shift
        break
        ;;
    esac
done
count=${count:-5}

redEcho() {
    [ -c /dev/stdout ] && {
        # if stdout is console, turn on color output.
        echo -ne "\033[1;31m"
        echo -n "$@"
        echo -e "\033[0m"
    } || echo "$@"
}

yellowEcho() {
    [ -c /dev/stdout ] && {
        # if stdout is console, turn on color output.
        echo -ne "\033[1;33m"
        echo -n "$@"
        echo -e "\033[0m"
    } || echo "$@"
}

blueEcho() {
    [ -c /dev/stdout ] && {
        # if stdout is console, turn on color output.
        echo -ne "\033[1;36m"
        echo -n "$@"
        echo -e "\033[0m"
    } || echo "$@"
}

# Check the existence of jstack command!
if ! which jstack &> /dev/null; then
    [ -z "$JAVA_HOME" ] && {
        redEcho "Error: jstack not found on PATH!"
        exit 1
    }
    ! [ -f "$JAVA_HOME/bin/jstack" ] && {
        redEcho "Error: jstack not found on PATH and $JAVA_HOME/bin/jstack file does NOT exists!"
        exit 1
    }
    ! [ -x "$JAVA_HOME/bin/jstack" ] && {
        redEcho "Error: jstack not found on PATH and $JAVA_HOME/bin/jstack is NOT executalbe!"
        exit 1
    }
    export PATH="$JAVA_HOME/bin:$PATH"
fi

readonly uuid=`date +%s`_${RANDOM}_$$

cleanupWhenExit() {
    rm /tmp/${uuid}_* &> /dev/null
}
trap "cleanupWhenExit" EXIT

printStackOfThread() {
    local line
    local count=1
    while IFS=" " read -a line ; do
        local pid=${line[0]}
        local threadId=${line[1]}
        local threadId0x=`printf %x ${threadId}`
        local user=${line[2]}
        local pcpu=${line[4]}

        local jstackFile=/tmp/${uuid}_${pid}

        [ ! -f "${jstackFile}" ] && {
            {
                if [ "${user}" == "${USER}" ]; then
                    jstack ${pid} > ${jstackFile}
                else
                    if [ $UID == 0 ]; then
                        sudo -u ${user} jstack ${pid} > ${jstackFile}
                    else
                        redEcho "[$((count++))] Fail to jstack Busy(${pcpu}%) thread(${threadId}/0x${threadId0x}) stack of java process(${pid}) under user(${user})."
                        redEcho "User of java process($user) is not current user($USER), need sudo to run again:"
                        yellowEcho "    sudo ${COMMAND_LINE[@]}"
                        echo
                        continue
                    fi
                fi
            } || {
                redEcho "[$((count++))] Fail to jstack Busy(${pcpu}%) thread(${threadId}/0x${threadId0x}) stack of java process(${pid}) under user(${user})."
                echo
                rm ${jstackFile}
                continue
            }
        }
        blueEcho "[$((count++))] Busy(${pcpu}%) thread(${threadId}/0x${threadId0x}) stack of java process(${pid}) under user(${user}):"
        sed "/nid=0x${threadId0x} /,/^$/p" -n ${jstackFile}
    done
}


ps -Leo pid,lwp,user,comm,pcpu --no-headers | {
    [ -z "${pid}" ] &&
    awk '$4=="java"{print $0}' ||
    awk -v "pid=${pid}" '$1==pid,$4=="java"{print $0}'
} | sort -k5 -r -n | head --lines "${count}" | printStackOfThread

　　　　在tomcat中执行脚本

　　　　

　　　　会这样显示

二,　　zabbix服务端配置

　　　　　　在清华源下载zabbix-java-getway

　　　　　　rpm -ivh https://mirrors.tuna.tsinghua.edu.cn/zabbix/zabbix/4.0/rhel/7/x86_64/zabbix-java-gateway-4.0.0-2.el7.x86_64.rpm

　　　　

　　　　再次安装依赖

　　　　

　　　　yum install -y zabbix-java-gateway-4.0.0-2.el7.x86_64

　　　　

　　　　启动服务

　　　　systemctl enable zabbix-java-gateway.service

　　　　systemctl start zabbix-java-gateway.service

　　　　systemctl status zabbix-java-gateway.service

　　　　

　　　　

　　　　重启服务器

　　　　systemctl restart zabbix-java-gateway.service

三, 客户端配置

　　　　安装zabbix -agent 

　　　　rpm -ivh https://mirrors.aliyun.com/zabbix/zabbix/4.0/rhel/7/x86_64/zabbix-release-4.0-1.el7.noarch.rpm

　　　　yum install zabbix-agent -y

　　　　

　　　　配置被监控项

　　　　vim  /application/tomcat/bin/catalina.sh +97

　　　　CATALINA_OPTS="$CATALINA_OPTS
　　　　-Dcom.sun.management.jmxremote
　　　　-Dcom.sun.management.jmxremote.port=12345  
　　　　-Dcom.sun.management.jmxremote.authenticate=false
　　　　-Dcom.sun.management.jmxremote.ssl=false
　　　　-Djava.rmi.server.hostname=10.0.0.11"

　　　　重新启动

　　　　 systemctl start zabbix-agent.service

四,web界面添加

　　　　添加主机

　　　　

　　　　完成后添加模板等待就行