How to enable SNMP with a JVM

Java · SNMP
Java · JVM · SNMP

This is useful to do when you are wishing to monitor the Memory allocation with in your java application.

HowTo

  1. Add the following to JVM_OPTS 

       -Dcom.sun.management.config.file=/export/home/pcanham/jvmsnmp/management.properties

  2. Contents of management.properties is 

       com.sun.management.snmp.interface=0.0.0.0
   com.sun.management.snmp.port=1161
   com.sun.management.snmp.trap=1162
   com.sun.management.snmp.acl=false

  3. If wishing ACL create a file called snmp.acl and the change ‘com.sun.management.snmp.acl=false’ to ‘com.sun.management.snmp.acl=snmp.acl’

  4. Make sure only owner has read and write access nobody and group are not allowed any access 

       -rw-------   1 pcanham    other        356 Aug  8 16:01 snmp.acl

  5. Contents of snmp.acl 

       acl = {
   {
   communities = public, private
   access = read-only
   managers = localhost
   }
   }
   
   # Traps are sent to localhost only
   
   trap = {
   {
   trap-community = public
   hosts = localhost
   }
   }

MIB

Useful MIBs

jvmMemoryHeapUsed

.1.3.6.1.4.1.42.2.145.3.163.1.1.2.11

jvmMemoryHeapCommitted

.1.3.6.1.4.1.42.2.145.3.163.1.1.2.12

jvmMemoryHeapMaxSize

.1.3.6.1.4.1.42.2.145.3.163.1.1.2.13

jvmMemoryNonHeapUsed

.1.3.6.1.4.1.42.2.145.3.163.1.1.2.21

jvmMemoryNonHeapCommited

.1.3.6.1.4.1.42.2.145.3.163.1.1.2.22

jvmMemoryNonHeapMaxSize

.1.3.6.1.4.1.42.2.145.3.163.1.1.2.23

jvmThreadCount

#.1.3.6.1.4.1.42.2.145.3.163.1.1.3.1

jvmMemPoolName

.1.3.6.1.4.1.42.2.145.3.163.1.1.2.110.1.2

jvmMemPoolUsed

.1.3.6.1.4.1.42.2.145.3.163.1.1.2.110.1.11

jvmMemPoolCommitted

.1.3.6.1.4.1.42.2.145.3.163.1.1.2.110.1.12

jvmMemPoolMaxSize

.1.3.6.1.4.1.42.2.145.3.163.1.1.2.110.1.13

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