Zabbix监控Tomcat案例

[Tomcat部署]

[root@tomcat ~]# wget http://mirror.bit.edu.cn/apache/tomcat/tomcat-8/v8.0.52/bin/apache-tomcat-8.0.52.tar.gz

[root@tomcat ~]# tar zxvf apache-tomcat-8.0.52.tar.gz

[root@tomcat ~]# mv apache-tomcat-8.0.52 /usr/local/tomcat

[root@tomcat ~]# /usr/local/tomcat/bin/startup.sh 

[root@Tomcat ~]# netstat -anput | grep java 
tcp        0      0 :::8080                     :::*                        LISTEN      1442/java           
tcp        0      0 ::ffff:127.0.0.1:8005       :::*                        LISTEN      1442/java           
tcp        0      0 :::8009                     :::*                        LISTEN      1442/java           
[root@Tomcat ~]# ps -ef | grep tomcat 
root       1442      1 10 04:43 pts/1    00:00:02 /usr/local/java//bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -Djava.endorsed.dirs=/usr/local/tomcat/endorsed -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start
root       1485   1275  0 04:43 pts/1    00:00:00 grep tomcat

上图中我们可以得知，配置zabbix监控Java应用程序的关键点在于：配置Zabbix-JavaGatway,让Zabbix-server能够连接zabbix-JavaGatway，Tomcat开启JVM远程监控功能等；

1 CATALINA_OPTS="$CATALINA_OPTS 
2 -Dcom.sun.management.jmxremote      #开启远程监控
3 -Dcom.sun.management.jmxremote.port=12345    #远程监控端口
4 -Dcom.sun.management.jmxremote.ssl=false     #远程ssl验证端口
5 -Dcom.sun.management.jmxremote.authenticate=false    #关闭权限认证
6 -Djava.rmi.server.hostname=192.168.17.134"   #被监控tomcat主机地址,默认就写本地即可

[root@Tomcat ~]# /usr/local/tomcat/bin/startup.sh 
Using CATALINA_BASE:   /usr/local/tomcat
Using CATALINA_HOME:   /usr/local/tomcat
Using CATALINA_TMPDIR: /usr/local/tomcat/temp
Using JRE_HOME:        /usr/local/java/
Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
Tomcat started.

[root@Tomcat~ bin]# netstat -anput | egrep "12345|8080|8005|8009"
tcp6       0      0 :::8080                 :::*                    LISTEN      20422/java          
tcp6       0      0 :::12345                :::*                    LISTEN      20422/java          
tcp6       0      0 192.168.17.134:8005      :::*                    LISTEN      20422/java          
tcp6       0      0 :::8009                 :::*                    LISTEN      20422/java  

1 CATALINA_OPTS="$CATALINA_OPTS  
2 -Dcom.sun.management.jmxremote 
3 -Djava.rmi.server.hostname=192.168.17.134 
4 -Dcom.sun.management.jmxremote.port=12345 
5 -Dcom.sun.management.jmxremote.ssl=false 
6 -Dcom.sun.management.jmxremote.authenticate=false"

[root@localhost lib]# java -jar cmdline-jmxclient-0.10.3.jar - 192.168.17.134:12345 java.lang:type=Memory NonHeapMemoryUsage   #ps：这里的cmdline-jmxcline软件包如果没有的话，
06/09/2018 18:10:08 +0800 org.archive.jmx.Client NonHeapMemoryUsage:                                                               可以在博客下方留言，私信给你~
committed: 27721728
init: 2555904
max: -1
used: 2695680

第二种方式检测也可以

[root@tomcat lib]# java -jar jmxcmd.jar - 192.168.17.134:12345 java.lang:type=Memory NonHeapMemoryUsage

06/10/2018 18:30:06 +0800 de.layereight.jmxcmd.Client NonHeapMemoryUsage: 

committed: 27721728
init: 2555904
max: -1
used: 2695680 

[root@tomcat etc]# grep -vE "#|^$" zabbix_agentd.conf
LogFile=/tmp/zabbix_agentd.log
EnableRemoteCommands=1
Server=192.168.17.135
ListenPort=10050
ServerActive=192.168.17.135
Hostname=192.168.17.134
Timeout=20
AllowRoot=1
UnsafeUserParameters=1

[root@zabbix_server ~]# grep -vE "#|^$" /usr/local/zabbix/etc/zabbix_server.conf 
LogFile=/var/log/zabbix/zabbix.log
DBHost=localhost
DBName=zabbixdb
DBUser=xiaoyu
DBPassword=123456
DBPort=3306
StartPollers=50            #指定启动多少个进程
StartPingers=100
JavaGateway=192.168.17.135     #Java网关地址，即zabbixserver端IP地址
JavaGatewayPort=10052         #java网关监听端口
StartJavaPollers=5            #启动时所指定的java pollers数量
Timeout=20
AlertScriptsPath=/usr/local/zabbix/share/zabbix/alertscripts/
FpingLocation=/usr/sbin/fping
LogSlowQueries=3000
AllowRoot=0

[root@zabbix_server ~]# vim /usr/local/zabbix/sbin/zabbix_java/settings.sh 
[root@zabbix_server ~]# grep -vE "#|^$" /usr/local/zabbix/sbin/zabbix_java/settings.sh 
LISTEN_IP="0.0.0.0"
LISTEN_PORT=10052
PID_FILE="/tmp/zabbix_java.pid"
START_POLLERS=5
TIMEOUT=3

[root@zabbix_server ~]# /usr/local/zabbix/sbin/zabbix_java/startup.sh

[root@zabbix_server fonts]# netstat -anput | grep 10052
tcp6 0 0 :::10052 :::* LISTEN 40649/java
tcp6 0 0 192.168.17.135:10052 192.168.17.135:51584 TIME_WAIT -