By Zabbix monitoring Tomcat stand-alone multi-instance

It has been introduced Tomcat stand-alone multi-instance deployment , then on the next step in his basis: Tomcat multi-instance monitoring!

Tomcat monitoring process and multi-instance multi-instance redis principle the same as before, divided into the following four steps:

1, to obtain multiple instances

2, data collection

3, production template

4, the host sets of templates

First, access to multi-instance

We already know that in the previous multi-instance Tomcat directory structure is as follows:

Before obtaining multiple instances need the following settings:

1, catalina.sh scripts in the bin directory to add the following

# ----- Execute The Requested Command -----------------------------------------

CATALINA_OPTS="$CATALINA_OPTS
-Djava.rmi.server.hostname=10.11.100.99
-Dcom.sun.management.jmxremote=true
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.authenticate=false"

　　Note must be behind the "Execute The Requested Command" add, specify the host name or IP, remote management is turned on, whether to start ssl, whether authentication is enabled.

2, is provided (conf / server.xml file) in a separate example

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

　　Description: remote connection port 12345, to obtain data port is 12346

Similarly, in the ins02

<Listener className="org.apache.catalina.mbeans.JmxRemoteLifecycleListener"  rmiRegistryPortPlatform="12347" rmiServerPortPlatform="12348"/>

　　Remote connection port is 12347, to obtain data port is 12348

3, restart the multi-instance, view the port situation to start

4, to obtain multi-instance port

cat jmx_discovery.sh

#!/bin/bash
t_datadir=`find /usr/local/tomcat/tomcat-*/conf/ -name server.xml|awk -F "/conf/server.xml" '{print $1}'`
tomcat_no=`find /usr/local/tomcat/tomcat-*/conf/ -name server.xml|wc -l`
n_port=12345
i=1
printf '{"data":[\n'
for tomcat in $t_datadir
do
    t_service=$(echo "$tomcat"|awk -F"/" '{print $(NF)}')

    if [ "$i" != ${tomcat_no} ];then

        printf "\t\t{ \n"

        printf "\t\t\t\"{#JMX_PORT}\":\"${n_port}\",\n"

        printf "\t\t\t\"{#JAVA_NAME}\":\"${t_service}\"},\n"

    else

        printf "\t\t{ \n"

        printf "\t\t\t\"{#JMX_PORT}\":\"${n_port}\",\n"

        printf "\t\t\t\"{#JAVA_NAME}\":\"${t_service}\"}]}\n"

    fi

    let "n_port=n_port+2"

    let "i=i+1"

done

　　注意，我这里的目录结构需要根据你的部署进行修改！

执行脚本：

发现两个实例。

二、采集数据

数据采集需要使用到cmdline-jmxclient-0.10.3.jar，专门用来通过JMX方式获取数据的。

拷贝cmdline-jmxclient-0.10.3.jar到/lib下，当然你也可以随便放置其他目录，只要zabbix用户能够访问就行，因为zabbix-agent是由zabbix用户启动的。

采集脚本：

cat add_service_tomcat.sh

#!/bin/bash
local_ip=`ifconfig|awk -F '[ :]+' 'NR==2 {print $4}'`                 #提取主机IP

cat >> /etc/zabbix/zabbix_agentd.d/tomcat.conf <<END                                 #修改zabbix_agentd.conf，添加KEY

UserParameter=java.jmx.discovery[*],/etc/zabbix/externalscripts/jmx_discovery.sh

UserParameter=java.Runtime.status[*],java -jar /lib/cmdline-jmxclient-0.10.3.jar - $local_ip:\$1 java.lang:type=Runtime \$2 2>&1 |grep \$2 |awk '{print \$NF}'

UserParameter=java.Memory.status[*],java -jar /lib/cmdline-jmxclient-0.10.3.jar - $local_ip:\$1 java.lang:type=Memory \$2 2>&1 |grep \$2 |awk '{print \$NF}'

UserParameter=java.System.status[*],java -jar /lib/cmdline-jmxclient-0.10.3.jar - $local_ip:\$1 java.lang:type=OperatingSystem \$2 2>&1 |grep \$2 |awk '{print \$NF}'

UserParameter=java.HeapMemoryUsage.status[*],java -jar /lib/cmdline-jmxclient-0.10.3.jar - $local_ip:\$1 java.lang:type=Memory HeapMemoryUsage 2>&1 |grep \$2 |awk '{print \$NF}'

UserParameter=java.NonHeapMemoryUsage.status[*],java -jar /lib/cmdline-jmxclient-0.10.3.jar - $local_ip:\$1 java.lang:type=Memory NonHeapMemoryUsage 2>&1 |grep \$2 |awk '{print \$NF}'

UserParameter=java.LoadClass.status[*],java -jar /lib/cmdline-jmxclient-0.10.3.jar - $local_ip:\$1 java.lang:type=ClassLoading \$2 2>&1 |awk '{print \$NF}'

UserParameter=java.Threading.status[*],java -jar /lib/cmdline-jmxclient-0.10.3.jar - $local_ip:\$1 java.lang:type=Threading \$2 2>&1 |awk '{print \$NF}'

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