工作原理：

1、JAVA-GATEWAY

　　?Zabbix本身不支持直接監控Java，在zabbix 1.8以前，只能使用Zapcat來做代理監控，而且要修改源代碼，非常麻煩。所有后來為了解決這個監控問題，Zabbix和Java雙方應運生成了各自的代理監控程序：zabbix 2.0 以后添加了服務進程zabbix-java-gateway，用以在服務端接收JMX的監控數據；Java有了JMX（全稱是Java Management Extensions,即Java管理擴展），用以在客戶端收集客戶端的監控數據并轉發到zabbix-java-gateway

2、示意圖

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比如：當Zabbix-Server需要知道java應用程序的某項性能的時候，會啟動自身的一個Zabbix-JavaPollers進程去連接Zabbix-Java-Gateway請求數據，而Zabbix-Java-gateway收到請求后會使用“JMX-management-API”去tomcat服務器開啟JMX，而前提是tomcat服務器端在開啟時需要“-Dcom.sun.management.jmxremote”參數來開啟JMX遠程查詢。Java程序會啟動自身的一個簡單的小程序端口12345向Zabbix-JavaGateway提供請求數據。

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Zabbix監控端部署：

1.安裝zabbix server

編譯安裝zabbix server需要加上--enable-java以支持jmx監控，如果之前的zabbix server沒加，那么請重新編譯安裝

./configure?--prefix=/application/zabbix-3.0.3?--enable-server?--enable-agent?--enable-java?--enable-ipv6?--with-mysql=/application/mysql-5.5.49/bin/mysql_config??--with-net-snmp?--with-libcurl?--with-libxml2?--with-openipmi?--with-unixodbc?--with-openssl

并且監控端也需要安裝java環境

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2.安裝zabbix_java_gateway

wget http://mirrors.aliyun.com/zabbix/zabbix/3.4/rhel/6/x86_64/zabbix-java-gateway-3.4.1-1.el6.x86_64.rpm

rpm -ivh zabbix-java-gateway-3.4.1-1.el6.x86_64.rpm（zabbix-java-gateway用老版本可能會出錯）

#zabbix_java_gateway配置文件zabbix_java_gateway.conf里有默認端口等設置，這里我們保持默認即可

service?zabbix-java-gateway start

此時，默認的端口10052應該打開，ss -nat | grep 10052查看

在zabbix_server.conf?中配置監控端訪問zabbix_java_gateway

JavaGateway=172.16.2.150? #zabbix_java_gateway地址

StartJavaPollers=6 ??#預啟動進程輪詢個數，且這個值要比zabbix_java_gateway.conf中Start_poller值要大，不然會無法通信

重啟zabbix-server

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zabbix客戶端安裝：

1.安裝JMX

1. 下載 JMX Remote jar 二進制包。放在?tomcat/lib?下面

wget??http://archive.apache.org/dist/tomcat/tomcat-7/v7.0.56/bin/extras/catalina-jmx-remote.jar

2. 修改 tomcat conf/server.xml 配置文件，添加以下內容：

<Listener className="org.apache.catalina.mbeans.JmxRemoteLifecycleListener" rmiRegistryPortPlatform="12345" rmiServerPortPlatform="12346" />

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3. 修改 tomcat/bin 目錄下 catalina.sh ，添加以下內容：

CATALINA_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=10.32.18.1"

注意：Djava.rmi.server.hostname這里寫上被監控端 hostname 是由于 hostname 默認值為 localhost,如果你的 tomcat 未監聽在 localhost，那么不寫具體 ip 會引發問題。并且這段配置應該寫在catalina.sh的前面，不然端口打不開。

4. 確保 zabbix server 或者 proxy 和 配置文件中的端口通訊暢通，重啟tomcat，lsof -i:12345端口打開

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驗證是否能獲取數據

在監控端下載JMX cmd.jar文件

wget http://nchc.dl.sourceforge.net/project/jmxcmd/jmxcmd.jar

測試有數據則表示成功

命令格式：

# java -jar jmxcmd.jar - 192.168.3.18:12345 java.lang:type=Memory NonHeapMemoryUsage

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導入模板，添加監控

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轉載于:https://www.cnblogs.com/nat-zhu/p/8024123.html

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