Snmp Error when using java snmp

[aberryjr]

Hello,

I am attempting to monitor a Java jvm with cacti.

I have the following as start options on the jvm.

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

In cacti I am using snmp port 1161, in the upper left hand corner I get msg "snmp error" and no data is of course graphed.

Any ideas?

Thanks,

[Sirup]

Can you SNMPwalk the jvm?
Have you properly configured you jvm? Permissions, SNMP agent?

[aberryjr]

Seems that I am getting some data. I don't know how good it is but I still get "snmp error". I have followed the directions which are in the post but I still get the error.

[Sirup]

Which JVM version?

What is the result from the snmpwalk?

[aberryjr]

I am running jdk1.6. I don't know how to do snmpwalk. can you please advise?

Thanks,

[Sirup]

From Linux:
snmpwalk -v [version] -c [cstring] [ip/hostname] (system)

From Windows: http://www.elifulkerson.com/articles/ne ... ficial.php

[aberryjr]

snmpwalk output below:

snmpwalk -v 1 -c public localhost
SNMPv2-MIB::sysDescr.0 = STRING: Linux aberry.linux.com 2.6.18-194.3.1.el5xen #1 SMP Sun May 2 05:02:13 EDT 2010 i686
SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (3110847) 8:38:28.47
SNMPv2-MIB::sysContact.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmp.local.conf)
SNMPv2-MIB::sysName.0 = STRING: aberry.linux.com
SNMPv2-MIB::sysLocation.0 = STRING: Unknown (edit /etc/snmp/snmpd.conf)
SNMPv2-MIB::sysORLastChange.0 = Timeticks: (27) 0:00:00.27
SNMPv2-MIB::sysORID.1 = OID: SNMPv2-MIB::snmpMIB
SNMPv2-MIB::sysORID.2 = OID: TCP-MIB::tcpMIB
SNMPv2-MIB::sysORID.3 = OID: IP-MIB::ip
SNMPv2-MIB::sysORID.4 = OID: UDP-MIB::udpMIB
SNMPv2-MIB::sysORID.5 = OID: SNMP-VIEW-BASED-ACM-MIB::vacmBasicGroup
SNMPv2-MIB::sysORID.6 = OID: SNMP-FRAMEWORK-MIB::snmpFrameworkMIBCompliance
SNMPv2-MIB::sysORID.7 = OID: SNMP-MPD-MIB::snmpMPDCompliance
SNMPv2-MIB::sysORID.8 = OID: SNMP-USER-BASED-SM-MIB::usmMIBCompliance
SNMPv2-MIB::sysORDescr.1 = STRING: The MIB module for SNMPv2 entities
SNMPv2-MIB::sysORDescr.2 = STRING: The MIB module for managing TCP implementations
SNMPv2-MIB::sysORDescr.3 = STRING: The MIB module for managing IP and ICMP implementations
SNMPv2-MIB::sysORDescr.4 = STRING: The MIB module for managing UDP implementations
SNMPv2-MIB::sysORDescr.5 = STRING: View-based Access Control Model for SNMP.
SNMPv2-MIB::sysORDescr.6 = STRING: The SNMP Management Architecture MIB.
SNMPv2-MIB::sysORDescr.7 = STRING: The MIB for Message Processing and Dispatching.
SNMPv2-MIB::sysORDescr.8 = STRING: The management information definitions for the SNMP User-based Security Model.
SNMPv2-MIB::sysORUpTime.1 = Timeticks: (25) 0:00:00.25
SNMPv2-MIB::sysORUpTime.2 = Timeticks: (25) 0:00:00.25
SNMPv2-MIB::sysORUpTime.3 = Timeticks: (25) 0:00:00.25
SNMPv2-MIB::sysORUpTime.4 = Timeticks: (25) 0:00:00.25
SNMPv2-MIB::sysORUpTime.5 = Timeticks: (25) 0:00:00.25
SNMPv2-MIB::sysORUpTime.6 = Timeticks: (27) 0:00:00.27
SNMPv2-MIB::sysORUpTime.7 = Timeticks: (27) 0:00:00.27
SNMPv2-MIB::sysORUpTime.8 = Timeticks: (27) 0:00:00.27
HOST-RESOURCES-MIB::hrSystemUptime.0 = Timeticks: (3117682) 8:39:36.82
End of MIB
[root@aberry ~]#

[aberryjr]

This is were I am now. I seems to be returning data. I changed the version from v1 to v2 and it seems to work. But I still get snmp error so I think think this maybe some cacti bug.

The other question what if I have multiple jvms can I have multiple ports such as 1161, 1162, 1163, etc...

Thanks,

[TheWitness]

When using snmpwalk, you have to use the syntax hostname:port to get the snmp information. The best way to do this is to create a new host for every vm.

TheWitness

[linebacker2]

when I do a snmpwalk I get the following result:

C:\usr\bin>snmpwalk -c public -v2c localhost:163 1.3.6.1.4.1.42.2.145.3.163.1.1.3.6
JVM-MANAGEMENT-MIB::jvmThreadCpuTimeMonitoring = No Such Object available on this agent at this OID

Anyone know why???


My Platform is Windows 2003 and have done the following to get Java apps monitored with Cacti.

- I have placed "JVM-MANAGEMENT-MIB.txt" in the mibs directory C:\usr\share\snmp\mibs
- changed the SNMP port TO run on port 163 instead of 161 under C:\WINDOWS\system32\drivers\etc\services
- Installed Net-SNMP and have it running as a service
- copied C:\Java\jdk-1.6-32\jre\lib\management\snmp.acl.template to copied C:\Java\jdk-1.6-32\jre\lib\management\snmp.acl
- set the following options in snmp.acl

acl ={

{

communities = public

access = read-only
managers = localhost

}

}

- Set the following parameters via wrapper.conf file for my java application:

wrapper.java.additional.1=-Dcom.sun.management.snmp.interface=0.0.0.0
wrapper.java.additional.2=-Dcom.sun.management.snmp.port=163
wrapper.java.additional.3=-Dcom.sun.management.snmp.acl=true
wrapper.java.additional.4=-Dcom.sun.management.snmp.acl.file=C:\Java\jdk-1.6-32\jre\lib\management\snmp.acl

- set the following in my snmpd.conf file:
proxy -v 2c -c public localhost:163 .1.3.6.1.4.1.42


This is a compilation of steps that I have researched and implemented.

What am I missing here? Any input would be greatly appreciated!