Zabbix监控Tomcat及Nginx

我会带着你远行 2023-06-12 12:26 37阅读 0赞

注：本篇博文是基于[部署zabbix监控服务器][zabbix]的环境进行的。这里将开启一台client服务器（被监控端）用于测试。

> 博文大纲：  
> 一、监控Tomcat  
> 二、监控Nginx服务器

## 一、监控Tomcat ##

监控Tomcat需要用到zabbix\_java\_gateway这个组件（在zabbix2.0引入的功能），顾名思义就是：Java网关，类似于agentd，但是只用于Java方面。需要注意的是，它只能主动去获取数据，而不能被动获取数据。它的数据最终会提交到server端或proxy。

如果需要开启监控Tomcat功能，在编译zabbix server端时，需要添加--enable\_java 参数。

### 1、Zabbix Server安装zabbix\_java\_gateway程序 ###

zabbix\_java\_gateway程序既可以安装在zabbix server端，也可以安装在被监控端，不过一般都是安装在Zabbix server端，这里我就安装在Zabbix Server端。

注：文中所有用到的源码包都可以从我的网盘链接中[下载][Link 1]

#执行下面命令前，请先下载我网盘链接中的对应rpm包
    [root@zabbix ~]# rpm -ivh zabbix-java-gateway-3.2.1-1.el7.x86_64.rpm
    #修改java_gateway配置文件
    [root@zabbix ~]# cd /etc/zabbix/
    [root@zabbix zabbix]# sed -i 's/# LISTEN_IP="0.0.0.0"/LISTEN_IP="0.0.0.0"/g' zabbix_java_gateway.conf 
    [root@zabbix zabbix]# sed -i 's/# LISTEN_PORT=10052/LISTEN_PORT=10052/g' zabbix_java_gateway.conf 
    [root@zabbix zabbix]# egrep -v '^$|^#' zabbix_java_gateway.conf 
    #确定修改后的配置文件
    LISTEN_IP="0.0.0.0"
    LISTEN_PORT=10052
    PID_FILE="/var/run/zabbix/zabbix_java.pid"
    TIMEOUT=3
    #启动java-gateway
    [root@zabbix zabbix]# systemctl start zabbix-java-gateway.service 
    #确定端口在监听
    [root@zabbix zabbix]# netstat -anpt | grep 10052
    tcp6       0      0 :::10052                :::*                    LISTEN      3112/java           
    #修改Zabbix-Server的配置文件
    [root@zabbix zabbix]# cd /usr/local/zabbix/etc/
    [root@zabbix etc]# sed -i 's/# JavaGateway=/JavaGateway=192.168.20.2/g' zabbix_server.conf
    [root@zabbix etc]# sed -i 's/# JavaGatewayPort=10052/JavaGatewayPort=10052/g' zabbix_server.conf
    [root@zabbix etc]# sed -i 's/# StartJavaPollers=0/StartJavaPollers=5/g' zabbix_server.conf
    [root@zabbix etc]# /etc/init.d/zabbix_server restart    #重启zabbix server

### 2、测试端配置Tomcat ###

**启动一台IP为192.168.20.3的服务器作为Tomcat服务器，用于测试。**

#安装Tomcat
    [root@tomcat ~]# rpm -qa | grep jdk       #查询系统默认的JAVA包
    java-1.8.0-openjdk-1.8.0.102-4.b14.el7.x86_64
    java-1.8.0-openjdk-headless-1.8.0.102-4.b14.el7.x86_64
    java-1.7.0-openjdk-1.7.0.111-2.6.7.8.el7.x86_64
    copy-jdk-configs-1.2-1.el7.noarch
    java-1.7.0-openjdk-headless-1.7.0.111-2.6.7.8.el7.x86_64
    [root@tomcat ~]# rpm -e java-1.8.0-openjdk-headless --nodeps        #卸载Java1.8
    [root@tomcat ~]# rpm -e java-1.7.0-openjdk-headless --nodeps        #卸载Java1.7
    [root@tomcat ~]# cd /usr/src
    [root@tomcat src]# rz      #上传我提供的两个源码包
    [root@tomcat src]# ls         #源码包如下
    apache-tomcat-8.5.35.tar.gz  jdk-8u211-linux-x64.tar.gz
    [root@tomcat ~]# tar zxf jdk-8u211-linux-x64.tar.gz -C /usr/local/   #解压JDK到指定路径
    [root@tomcat src]# tar zxf apache-tomcat-8.5.35.tar.gz   #解压Tomcat源码包
    [root@tomcat src]# mv apache-tomcat-8.5.35 /usr/local/tomcat   #将解压后的目录移动到指定目录并命名为tomcat
    [root@tomcat ~]# vim /etc/profile         #编辑环境变量，在配置文件末尾添加以下内容
    export JAVA_HOME=/usr/local/jdk1.8.0_211
    export JRE_HOME=/usr/local/jdk1.8.0_211/jre
    export CLASSPATH=$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar
    export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH
    [root@tomcat ~]# . /etc/profile       #重新加载环境变量
    [root@tomcat ~]# java -version       #查看java版本
    java version "1.8.0_211"
    Java(TM) SE Runtime Environment (build 1.8.0_211-b12)
    Java HotSpot(TM) 64-Bit Server VM (build 25.211-b12, mixed mode)
    #开启Tomcat的JMX远程管理功能
    [root@tomcat src]# vim /usr/local/tomcat/bin/catalina.sh
    export JDK_JAVA_OPTIONS    #跳转到306行，也就是该行，下面写入以下内容
    CATALINA_OPTS=" $CATALINA_OPTS  -Dcom.sun.management.jmxremote  -Dcom.sun.management.jmxremote.port=8888 -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=192.168.20.3  -Dcom.sun.management.jmxremote.authenticate=false"
    #注：上面的IP为Tomcat本机的IP，端口“8888”可以自定义，不要冲突即可
    [root@tomcat src]# /usr/local/tomcat/bin/startup.sh   #启动Tomcat
    #确定相关端口在监听
    [root@tomcat src]# netstat -anpt | grep 8080
    tcp6       0      0 :::8080                 :::*                    LISTEN      3871/java           
    [root@tomcat src]# netstat -anpt | grep 8888
    tcp6       0      0 :::8888                 :::*                    LISTEN      3871/java

### 3、回到Zabbix-server进行JMX连接测试 ###

**注：该测试需要系统支持图形化桌面，若没有图形化桌面，此验证过程可以省略。**

[root@zabbix ~]# jconsole    #执行此命令，此命令是Java-gateway提供的。

执行上面的命令后，会弹出下面提示框（输入Tomcat的IP+JMX监听端口，进行连接）：

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx]

**确保可以看到以下画面即可：**

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 1]

### 4、登录到Zabbix Server的web界面进行配置 ###

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 2]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 3]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 4]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 5]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 6]

**稍等片刻，显示如下即可：**

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 7]

**可以进行以下操作，看到JVM虚拟机相关的信息：**

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 8]

## 二、监控Nginx服务器 ##

**自行安装部署Nginx，这里我还将Nginx配置在Tomcat这台主机上。部署Nginx可参考博文：[搭建Nginx服务器及深度优化][Nginx]**

### 1、在Nginx服务器上部署agent客户端 ###

#安装zabbix-agent
    [root@tomcat src]# tar zxf zabbix-3.2.1.tar.gz 
    [root@tomcat src]# cd zabbix-3.2.1/
    [root@tomcat zabbix-3.2.1]# ./configure --prefix=/usr/local/zabbix --enable-agent && make && make install
    [root@tomcat zabbix-3.2.1]# cp misc/init.d/fedora/core/zabbix_agentd /etc/init.d/
    [root@tomcat zabbix-3.2.1]# chmod +x /etc/init.d/zabbix_agentd 
    #修改启动脚本
    [root@tomcat zabbix-3.2.1]# sed -i 's/BASEDIR=\/usr\/local/BASEDIR=\/usr\/local\/zabbix/g' /etc/init.d/zabbix_agentd 
    [root@tomcat zabbix-3.2.1]# sed -i 's/PIDFILE=\/tmp\/$BINARY_NAME.pid/PIDFILE=$BASEDIR\/logs\/$BINARY_NAME.pid/g' /etc/init.d/zabbix_agentd
    [root@tomcat zabbix-3.2.1]# useradd -M -s /sbin/nologin zabbix
    [root@tomcat ~]# mkdir -p /usr/local/zabbix/logs/
    [root@tomcat ~]# chown -R zabbix:zabbix /usr/local/zabbix
    [root@tomcat zabbix-3.2.1]# chkconfig --add zabbix_agentd
    [root@tomcat zabbix-3.2.1]# chkconfig zabbix_agentd on
    [root@tomcat zabbix-3.2.1]# systemctl start zabbix_agentd
    [root@tomcat zabbix-3.2.1]# netstat -anpt | grep zabbix
    tcp        0      0 0.0.0.0:10050           0.0.0.0:*               LISTEN      97364/zabbix_agentd 
    #修改agent配置文件
    [root@tomcat zabbix-3.2.1]# cd /usr/local/zabbix/etc/
    [root@tomcat etc]# sed -i 's/# PidFile=\/tmp\/zabbix_agentd.pid/PidFile=\/usr\/local\/zabbix\/logs\/zabbix_agentd.pid/g' zabbix_agentd.conf
    [root@tomcat etc]# sed -i 's/LogFile=\/tmp\/zabbix_agentd.log/LogFile=\/usr\/local\/zabbix\/logs\/zabbix_agentd.log/g' zabbix_agentd.conf
    [root@tomcat etc]# sed -i 's/Server=127.0.0.1/Server=192.168.20.2/g' zabbix_agentd.conf
    [root@tomcat etc]# sed -i 's/# ListenPort=10050/ListenPort=10050/g' zabbix_agentd.conf
    [root@tomcat etc]# sed -i 's/# ListenIP=0.0.0.0/ListenIP=0.0.0.0/g' zabbix_agentd.conf
    [root@tomcat etc]# sed -i 's/ServerActive=127.0.0.1/ServerActive=192.168.20.2/g' zabbix_agentd.conf
    [root@tomcat etc]# sed -i 's/Hostname=Zabbix server/Hostname=192.168.20.3/g' zabbix_agentd.conf
    [root@tomcat etc]# sed -i 's/# Timeout=3/Timeout=15/g' zabbix_agentd.conf
    [root@tomcat etc]# sed -i 's/# Include=\/usr\/local\/etc\/zabbix_agentd.conf.d\//Include=\/usr\/local\/zabbix\/etc\/zabbix_agentd.conf.d\//g' zabbix_agentd.conf
    [root@tomcat etc]# sed -i 's/# UnsafeUserParameters=0/UnsafeUserParameters=1/g' zabbix_agentd.conf
    [root@tomcat etc]# echo 'UserParameter=nginx.info[*],/usr/local/zabbix/scripts/nginx.sh  $1' >> zabbix_agentd.conf
    [root@tomcat etc]# echo "UserParameter=nginx.ping[*],netstat -anput | grep -w 80 | grep -w LISTEN | wc -l" >> zabbix_agentd.conf
    [root@tomcat etc]# egrep -v '^$|^#' zabbix_agentd.conf   #确定配置无误
    PidFile=/usr/local/zabbix/logs/zabbix_agentd.pid
    LogFile=/usr/local/zabbix/logs/zabbix_agentd.log
    Server=192.168.20.2
    ListenPort=10050
    ListenIP=0.0.0.0
    ServerActive=192.168.20.2
    Hostname=192.168.20.3
    Timeout=15
    Include=/usr/local/zabbix/etc/zabbix_agentd.conf.d/
    Include=/usr/local/zabbix/etc/zabbix_agentd.conf.d/*.conf
    UnsafeUserParameters=1
    UserParameter=nginx.info[*],/usr/local/zabbix/scripts/nginx.sh  $1
    UserParameter=nginx.ping[*],netstat -anput | grep -w 80 | grep -w LISTEN | wc -l

### 2、在Nginx服务器上编写Nginx脚本 ###

**注：此脚本可在我文章开头的下载链接中获得。**

[root@tomcat etc]# mkdir /usr/local/zabbix/scripts/
    [root@tomcat etc]# cd /usr/local/zabbix/scripts/
    [root@tomcat scripts]# cat nginx.sh     #脚本如下，所有IP均为Nginx的IP
    
    #!/bin/bash
    case $1 in
    index)
        RS=`curl -s -I 192.168.20.3/index.html |head -n1 |awk '{print $2}'`
        echo $RS
        ;;
    
    WorkerProcesses)
        RS=`ps aux |grep nginx | grep -w worker |wc -l`
        echo $RS
        ;;
    
    bps)
        RS=`ab -q -n 1000 -c 1000 http://192.168.20.3/index.html |grep Request | awk '{print $4}'`
        echo $RS
        ;;
    
    Current)
        LINES=`cat /usr/local/nginx/logs/access.log |wc -l`
        sleep 1
        NOW_LINES=`cat /usr/local/nginx/logs/access.log |wc -l`
        echo $NOW_LINES $LINES | awk '{print $1 -$2}'
    ;;
    IP)
        RS=`cat /usr/local/nginx/logs/access.log | awk '{print $1}' |sort -u | wc -l`
        echo $RS
        ;;
    
    VirtualHost)
        RS=`cat /usr/local/nginx/conf/nginx.conf |grep -v '#' | grep server_name | wc -l`
        echo $RS
        ;;
    
    MD5)
        RS=`md5sum /usr/local/nginx/conf/nginx.conf |awk '{print $1}'`
        echo $RS
        ;;
    
    PV)
        RS=`wc -l /usr/local/nginx/logs/access.log | awk '{print $1}'`
        echo $RS
        ;;
    esac
    [root@tomcat scripts]#  /etc/init.d/zabbix_agentd restart   #重启agent
    #调整相应权限，需要所有用户都可以执行netstat命令
    [root@tomcat scripts]# chmod +s /usr/bin/netstat
    [root@tomcat scripts]# chmod  +x  nginx.sh

### 3、配置Zabbix-Server Web界面 ###

1、在配置web界面前，可现在Zabbix-Server端测试一下相关信息是否可以获得，以便验证脚本的正确性（同时ab压力测试是必须要有的，Server端和Agent端都要装该命令）。

[root@zabbix fonts]# yum -y install httpd-tools     #安装ab压力测试命令
    [root@zabbix fonts]# ab -q -n 1000 -c 1000 http://192.168.20.3/index.html |grep Request | awk '{print $4}'
    2117.31         #有信息返回则表示正常

**配置Web界面：**

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 9]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 10]

#### 1）配置应用集 ####

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 11]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 12]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 13]

#### 2）配置监控项 ####

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 14]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 15]

**监控Nginx总访问量：**

接下来每添加一个监控项，都要点击下面的按钮，为了简单，以后就不截下面页面的图了。

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 16]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 17]

**独立IP数**

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 18]

**Nginx主页的状态**

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 19]

**Nginx当前并发数**

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 20]

**配置文件MD5值用来监控nginx配置文件是否被更改（注意图中其信息类型）**

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 21]

**当前吞吐量bps，并且让其更新时间为60秒（注意其信息类型）**

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 22]

**监控nginx工作进程的个数**

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 23]

**监控Nignx虚拟主机的个数**

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 24]

#### 3）创建触发器 ####

**nginx服务意外停止工作触发器**  
![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 25]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 26]

**创建Nginx主页不可访问的触发器**  
![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 25]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 27]

**创建Nginx配置文件被修改触发器**  
![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 25]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 28]

#### 4）添加被监控主机 ####

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 29]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 30]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 31]

#### 5）查看Zabbix监控的数据 ####

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 32]

#### 6）给监控nginx状态添加映射（更加友好） ####

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 33]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 34]  
![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 35]

**确定已添加：**  
![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 36]

**关联到监控项**

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 37]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 38]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 39]

在Server端模拟并发，然后查看图形检测页面：

[root@zabbix ~]# vim a.sh      #编写脚本
    
    #!/bin/bash
    while true
    do
    ab -n 1000 -c 100 192.168.20.3/index.html &> /dev/null
    done
    [root@zabbix ~]# sh a.sh      #执行脚本

执行脚本后，图形界面如下：

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 40]

也可以自定义图表，如下：  
![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 41]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 42]

![Zabbix监控Tomcat及Nginx][Zabbix_Tomcat_Nginx 43]

[zabbix]: https://blog.51cto.com/14154700/2448640
[Link 1]: https://pan.baidu.com/s/1PfncT3qOymmBKotb_2H1Gg
[Zabbix_Tomcat_Nginx]: https://s1.51cto.com/images/blog/201911/11/58d0474085d29a9eef1e16995de40d64.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[Zabbix_Tomcat_Nginx 1]: https://s1.51cto.com/images/blog/201911/11/f0db0c6ff5c9260e9a534af366dc7cfb.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[Zabbix_Tomcat_Nginx 2]: https://s1.51cto.com/images/blog/201911/11/90740553a7615d972d39d3b338cc2245.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[Zabbix_Tomcat_Nginx 3]: https://s1.51cto.com/images/blog/201911/11/3a9dd03803e5f9a6f230e2431730b4ca.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[Zabbix_Tomcat_Nginx 4]: https://s1.51cto.com/images/blog/201911/11/d1d71ef045d4856e77d62395b2a64abd.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[Zabbix_Tomcat_Nginx 5]: https://s1.51cto.com/images/blog/201911/11/cbc140a12392a77ddf50bb4fc307b6d9.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[Zabbix_Tomcat_Nginx 6]: https://s1.51cto.com/images/blog/201911/11/f606ee34a77ae44bc49fc059602a6825.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[Zabbix_Tomcat_Nginx 7]: https://s1.51cto.com/images/blog/201911/11/108f17c1c7aef052023f9f1f5cd8f68a.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[Zabbix_Tomcat_Nginx 8]: https://s1.51cto.com/images/blog/201911/11/33f5f3a46fb087929e41d89b1d602122.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[Nginx]: https://blog.51cto.com/14154700/2443460
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