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技术 2022年11月23日
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工作原理:

1、JAVA-GATEWAY

   Zabbix本身不支持直接监控Java,在zabbix 1.8以前,只能使用Zapcat来做代理监控,而且要修改源代码,非常麻烦。所有后来为了解决这个监控问题,Zabbix和Java双方应运生成了各自的代理监控程序:zabbix 2.0 以后添加了服务进程zabbix-java-gateway,用以在服务端接收JMX的监控数据;Java有了JMX(全称是Java Management Extensions,即Java管理扩展),用以在客户端收集客户端的监控数据并转发到zabbix-java-gateway

2、示意图

Zabbix JMX之tomcat监控

比如:当Zabbix-Server需要知道java应用程序的某项性能的时候,会启动自身的一个Zabbix-JavaPollers进程去连接Zabbix-Java-Gateway请求数据,而Zabbix-Java-gateway收到请求后会使用“JMX-management-API”去tomcat服务器开启JMX,而前提是tomcat服务器端在开启时需要“-Dcom.sun.management.jmxremote”参数来开启JMX远程查询。Java程序会启动自身的一个简单的小程序端口12345向Zabbix-JavaGateway提供请求数据。

Zabbix监控端部署:

1.安装zabbix server

编译安装zabbix server需要加上–enable-java以支持jmx监控,如果之前的zabbix server没加,那么请重新编译安装

./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

并且监控端也需要安装java环境

2.安装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用老版本可能会出错)

#zabbix_java_gateway配置文件zabbix_java_gateway.conf里有默认端口等设置,这里我们保持默认即可

service zabbix-java-gateway start

此时,默认的端口10052应该打开,ss -nat | grep 10052查看

在zabbix_server.conf 中配置监控端访问zabbix_java_gateway

JavaGateway=172.16.2.150  #zabbix_java_gateway地址

StartJavaPollers=6   #预启动进程轮询个数,且这个值要比zabbix_java_gateway.conf中Start_poller值要大,不然会无法通信

重启zabbix-server

zabbix客户端安装:

1.安装JMX

1. 下载 JMX Remote jar 二进制包。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,添加以下内容:

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

3. 修改 tomcat/bin 目录下 catalina.sh ,添加以下内容:

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这里写上被监控端 hostname 是由于 hostname 默认值为 localhost,如果你的 tomcat 未监听在 localhost,那么不写具体 ip 会引发问题。并且这段配置应该写在catalina.sh的前面,不然端口打不开。

4. 确保 zabbix server 或者 proxy 和 配置文件中的端口通讯畅通,重启tomcat,lsof -i:12345端口打开

验证是否能获取数据

在监控端下载JMX cmd.jar文件

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

测试有数据则表示成功

命令格式:

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

导入模板,添加监控

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compression</name><type>16</type><snmp_community/><multiplier>0</multiplier><snmp_oid/><key>jmx["Catalina:type=ProtocolHandler,port=8080",compression]</key><delay>30</delay><history>90</history><trends>365</trends><status>0</status><value_type>1</value_type><allowed_hosts/><units/><delta>0</delta><snmpv3_securityname/><snmpv3_securitylevel>0</snmpv3_securitylevel><snmpv3_authpassphrase/><snmpv3_privpassphrase/><formula>1</formula><delay_flex/><params/><ipmi_sensor/><data_type>0</data_type><authtype>0</authtype><username/><password/><publickey/><privatekey/><port/><description/><inventory_link>0</inventory_link><applications/><valuemap/></item>-<item><name>http-8080活动线程</name><type>16</type><snmp_community/><multiplier>0</multiplier><snmp_oid/><key>jmx["java.lang:type=Threading","ThreadCount"]</key><delay>30</delay><history>90</history><trends>365</trends><status>0</status><value_type>3</value_type><allowed_hosts/><units/><delta>0</delta><snmpv3_securityname/><snmpv3_securitylevel>0</snmpv3_securitylevel><snmpv3_authpassphrase/><snmpv3_privpassphrase/><formula>1</formula><delay_flex/><params/><ipmi_sensor/><data_type>0</data_type><authtype>0</authtype><username/><password/><publickey/><privatekey/><port/><description/><inventory_link>0</inventory_link>-<applications>-<application><name>ThreadStatistics</name></application></applications><valuemap/></item>-<item><name>http-8080线程峰值</name><type>16</type><snmp_community/><multiplier>0</multiplier><snmp_oid/><key>jmx["java.lang:type=Threading","PeakThreadCount"]</key><delay>30</delay><history>90</history><trends>365</trends><status>0</status><value_type>3</value_type><allowed_hosts/><units/><delta>0</delta><snmpv3_securityname/><snmpv3_securitylevel>0</snmpv3_securitylevel><snmpv3_authpassphrase/><snmpv3_privpassphrase/><formula>1</formula><delay_flex/><params/><ipmi_sensor/><data_type>0</data_type><authtype>0</authtype><username/><password/><publickey/><privatekey/><port/><description/><inventory_link>0</inventory_link>-<applications>-<application><name>ThreadStatistics</name></application></applications><valuemap/></item>-<item><name>http-8080线程总计</name><type>16</type><snmp_community/><multiplier>0</multiplier><snmp_oid/><key>jmx["java.lang:type=Threading","TotalStartedThreadCount"]</key><delay>30</delay><history>90</history><trends>365</trends><status>0</status><value_type>3</value_type><allowed_hosts/><units/><delta>0</delta><snmpv3_securityname/><snmpv3_securitylevel>0</snmpv3_securitylevel><snmpv3_authpassphrase/><snmpv3_privpassphrase/><formula>1</formula><delay_flex/><params/><ipmi_sensor/><data_type>0</data_type><authtype>0</authtype><username/><password/><publickey/><privatekey/><port/><description/><inventory_link>0</inventory_link>-<applications>-<application><name>ThreadStatistics</name></application></applications><valuemap/></item>-<item><name>Sessions-Number 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version</name><type>16</type><snmp_community/><multiplier>0</multiplier><snmp_oid/><key>jmx["Catalina:type=Server",serverInfo]</key><delay>30</delay><history>90</history><trends>365</trends><status>0</status><value_type>1</value_type><allowed_hosts/><units/><delta>0</delta><snmpv3_securityname/><snmpv3_securitylevel>0</snmpv3_securitylevel><snmpv3_authpassphrase/><snmpv3_privpassphrase/><formula>1</formula><delay_flex/><params/><ipmi_sensor/><data_type>0</data_type><authtype>0</authtype><username/><password/><publickey/><privatekey/><port/><description/><inventory_link>0</inventory_link>-<applications>-<application><name>Tomcat</name></application></applications><valuemap/></item>-<item><name>堆内存已使用</name><type>16</type><snmp_community/><multiplier>0</multiplier><snmp_oid/><key>jmx["java.lang:type=Memory","HeapMemoryUsage.used"]</key><delay>30</delay><history>90</history><trends>365</trends><status>0</status><value_type>3</value_type><allowed_hosts/><units/><delta>0</delta><snmpv3_securityname/><snmpv3_securitylevel>0</snmpv3_securitylevel><snmpv3_authpassphrase/><snmpv3_privpassphrase/><formula>1</formula><delay_flex/><params/><ipmi_sensor/><data_type>0</data_type><authtype>0</authtype><username/><password/><publickey/><privatekey/><port/><description/><inventory_link>0</inventory_link>-<applications>-<application><name>HeapStatistics</name></application></applications><valuemap/></item>-<item><name>堆内存已提交</name><type>16</type><snmp_community/><multiplier>0</multiplier><snmp_oid/><key>jmx["java.lang:type=Memory","HeapMemoryUsage.committed"]</key><delay>30</delay><history>90</history><trends>365</trends><status>0</status><value_type>3</value_type><allowed_hosts/><units/><delta>0</delta><snmpv3_securityname/><snmpv3_securitylevel>0</snmpv3_securitylevel><snmpv3_authpassphrase/><snmpv3_privpassphrase/><formula>1</formula><delay_flex/><params/><ipmi_sensor/><data_type>0</data_type><authtype>0</authtype><username/><password/><publickey/><privatekey/><port/><description/><inventory_link>0</inventory_link>-<applications>-<application><name>HeapStatistics</name></application></applications><valuemap/></item>-<item><name>堆内存最大</name><type>16</type><snmp_community/><multiplier>0</multiplier><snmp_oid/><key>jmx["java.lang:type=Memory","HeapMemoryUsage.max"]</key><delay>30</delay><history>90</history><trends>365</trends><status>0</status><value_type>3</value_type><allowed_hosts/><units/><delta>0</delta><snmpv3_securityname/><snmpv3_securitylevel>0</snmpv3_securitylevel><snmpv3_authpassphrase/><snmpv3_privpassphrase/><formula>1</formula><delay_flex/><params/><ipmi_sensor/><data_type>0</data_type><authtype>0</authtype><username/><password/><publickey/><privatekey/><port/><description/><inventory_link>0</inventory_link>-<applications>-<application><name>HeapStatistics</name></application></applications><valuemap/></item>-<item><name>类-已加载</name><type>16</type><snmp_community/><multiplier>0</multiplier><snmp_oid/><key>jmx["java.lang:type=ClassLoading","LoadedClassCount"]</key><delay>30</delay><history>90</history><trends>365</trends><status>0</status><value_type>3</value_type><allowed_hosts/><units/><delta>0</delta><snmpv3_securityname/><snmpv3_securitylevel>0</snmpv3_securitylevel><snmpv3_authpassphrase/><snmpv3_privpassphrase/><formula>1</formula><delay_flex/><params/><ipmi_sensor/><data_type>0</data_type><authtype>0</authtype><username/><password/><publickey/><privatekey/><port/><description/><inventory_link>0</inventory_link>-<applications>-<application><name>class</name></application></applications><valuemap/></item>-<item><name>类-已卸载</name><type>16</type><snmp_community/><multiplier>0</multiplier><snmp_oid/><key>jmx["java.lang:type=ClassLoading","UnloadedClassCount"]</key><delay>30</delay><history>90</history><trends>365</trends><status>0</status><value_type>3</value_type><allowed_hosts/><units/><delta>0</delta><snmpv3_securityname/><snmpv3_securitylevel>0</snmpv3_securitylevel><snmpv3_authpassphrase/><snmpv3_privpassphrase/><formula>1</formula><delay_flex/><params/><ipmi_sensor/><data_type>0</data_type><authtype>0</authtype><username/><password/><publickey/><privatekey/><port/><description/><inventory_link>0</inventory_link>-<applications>-<application><name>class</name></application></applications><valuemap/></item>-<item><name>类-总计</name><type>16</type><snmp_community/><multiplier>0</multiplier><snmp_oid/><key>jmx["java.lang:type=ClassLoading","TotalLoadedClassCount"]</key><delay>30</delay><history>90</history><trends>365</trends><status>0</status><value_type>3</value_type><allowed_hosts/><units/><delta>0</delta><snmpv3_securityname/><snmpv3_securitylevel>0</snmpv3_securitylevel><snmpv3_authpassphrase/><snmpv3_privpassphrase/><formula>1</formula><delay_flex/><params/><ipmi_sensor/><data_type>0</data_type><authtype>0</authtype><username/><password/><publickey/><privatekey/><port/><description/><inventory_link>0</inventory_link>-<applications>-<application><name>class</name></application></applications><valuemap/></item></items><discovery_rules/><macros/><templates/><screens/></template></templates>-<graphs>-<graph><name>会话状态</name><width>900</width><height>200</height><yaxismin>0.0000</yaxismin><yaxismax>100.0000</yaxismax><show_work_period>1</show_work_period><show_triggers>1</show_triggers><type>0</type><show_legend>1</show_legend><show_3d>0</show_3d><percent_left>0.0000</percent_left><percent_right>0.0000</percent_right><ymin_type_1>0</ymin_type_1><ymax_type_1>0</ymax_type_1><ymin_item_1>0</ymin_item_1><ymax_item_1>0</ymax_item_1>-<graph_items>-<graph_item><sortorder>0</sortorder><drawtype>0</drawtype><color>C80000</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["Catalina:type=Manager,context=/,host=localhost",maxActive]</key></item></graph_item>-<graph_item><sortorder>1</sortorder><drawtype>0</drawtype><color>00C800</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["Catalina:type=Manager,context=/,host=localhost",activeSessions]</key></item></graph_item>-<graph_item><sortorder>2</sortorder><drawtype>0</drawtype><color>0000C8</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["Catalina:type=Manager,context=/,host=localhost",sessionCounter]</key></item></graph_item>-<graph_item><sortorder>3</sortorder><drawtype>0</drawtype><color>C800C8</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["Catalina:type=Manager,context=/,host=localhost",rejectedSessions]</key></item></graph_item>-<graph_item><sortorder>4</sortorder><drawtype>0</drawtype><color>00C8C8</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["Catalina:type=Manager,context=/,host=localhost",maxActiveSessions]</key></item></graph_item></graph_items></graph>-<graph><name>堆内存状态</name><width>900</width><height>200</height><yaxismin>0.0000</yaxismin><yaxismax>100.0000</yaxismax><show_work_period>1</show_work_period><show_triggers>1</show_triggers><type>0</type><show_legend>1</show_legend><show_3d>0</show_3d><percent_left>0.0000</percent_left><percent_right>0.0000</percent_right><ymin_type_1>0</ymin_type_1><ymax_type_1>0</ymax_type_1><ymin_item_1>0</ymin_item_1><ymax_item_1>0</ymax_item_1>-<graph_items>-<graph_item><sortorder>0</sortorder><drawtype>0</drawtype><color>C80000</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["java.lang:type=Memory","HeapMemoryUsage.used"]</key></item></graph_item>-<graph_item><sortorder>1</sortorder><drawtype>0</drawtype><color>00C800</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["java.lang:type=Memory","HeapMemoryUsage.committed"]</key></item></graph_item>-<graph_item><sortorder>2</sortorder><drawtype>0</drawtype><color>0000C8</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["java.lang:type=Memory","HeapMemoryUsage.max"]</key></item></graph_item></graph_items></graph>-<graph><name>类状态</name><width>900</width><height>200</height><yaxismin>0.0000</yaxismin><yaxismax>100.0000</yaxismax><show_work_period>1</show_work_period><show_triggers>1</show_triggers><type>0</type><show_legend>1</show_legend><show_3d>0</show_3d><percent_left>0.0000</percent_left><percent_right>0.0000</percent_right><ymin_type_1>0</ymin_type_1><ymax_type_1>0</ymax_type_1><ymin_item_1>0</ymin_item_1><ymax_item_1>0</ymax_item_1>-<graph_items>-<graph_item><sortorder>0</sortorder><drawtype>0</drawtype><color>C80000</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["java.lang:type=ClassLoading","LoadedClassCount"]</key></item></graph_item>-<graph_item><sortorder>1</sortorder><drawtype>0</drawtype><color>00C800</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["java.lang:type=ClassLoading","UnloadedClassCount"]</key></item></graph_item>-<graph_item><sortorder>2</sortorder><drawtype>0</drawtype><color>0000C8</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["java.lang:type=ClassLoading","TotalLoadedClassCount"]</key></item></graph_item></graph_items></graph>-<graph><name>线程状态</name><width>900</width><height>200</height><yaxismin>0.0000</yaxismin><yaxismax>100.0000</yaxismax><show_work_period>1</show_work_period><show_triggers>1</show_triggers><type>0</type><show_legend>1</show_legend><show_3d>0</show_3d><percent_left>0.0000</percent_left><percent_right>0.0000</percent_right><ymin_type_1>0</ymin_type_1><ymax_type_1>0</ymax_type_1><ymin_item_1>0</ymin_item_1><ymax_item_1>0</ymax_item_1>-<graph_items>-<graph_item><sortorder>0</sortorder><drawtype>0</drawtype><color>C80000</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["java.lang:type=Threading","ThreadCount"]</key></item></graph_item>-<graph_item><sortorder>1</sortorder><drawtype>0</drawtype><color>00C800</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["java.lang:type=Threading","PeakThreadCount"]</key></item></graph_item>-<graph_item><sortorder>2</sortorder><drawtype>0</drawtype><color>0000C8</color><yaxisside>0</yaxisside><calc_fnc>2</calc_fnc><type>0</type>-<item><host>CustomTomcat</host><key>jmx["java.lang:type=Threading","TotalStartedThreadCount"]</key></item></graph_item></graph_items></graph></graphs></zabbix_export>

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