Weblogic for dummies: SNMP

Using WLS SNMP utilities (for verification and troubleshooting).

Steps:

1. Start WLS 10.0.1.

2. Open a windows command prompt (cmd.exe).

3. Then, set environment variables for java by invoking the following:

C:\wlw10\user_projects\domains\base_domain\bin\setDomainEnv.cmd

4. Reference edocs for deprecated utils:

http://e-docs.bea.com/wls/docs100/admin_ref/snmpcli.html (Deprecated)

5. Use snmpgetnext and snmpget to see if the OID is implemented/available or not.

Look up the OID of the mbean/attribute first, eg:

Mbean: executeQueueRuntime

Attribute: ExecuteThreadCurrentIdleCount

OID: .1.3.6.1.4.1.140.625.180.1.25

http://edocs/wls/docs100/snmp/index.html

Note: Make sure you have the snmp agent and monitor targeted to server properly.

Invoke snmpgetnext to find the exact OID, eg:

C:\test>java snmpgetnext 66.92.88.90 .1.3.6.1.4.1.140.625.360.1.60

Response PDU received from /66.92.75.165, community: public

Object ID: .1.3.6.1.4.1.140.625.360.1.60.16.171.5.160.79.30.237.108.44.247.215.121.36.203.188.119.88

STRING: RUNNING

The exposed OID for attribute serverRuntimeState of serverRuntime mbean is .1.3.6.1.4.1.140.625.360.1.60. I use snmpgetnext to find out exact OID.

If I use snmpget on the exact OID, I get:

C:\test>java snmpget 66.92.88.90 .1.3.6.1.4.1.140.625.360.1.60.16.171.5.160.79.30.237.108.44.247.215.121.36.203.188.119.88

Response PDU received from /66.92.75.165, community: public

Object ID: .1.3.6.1.4.1.140.625.360.1.60.16.171.5.160.79.30.237.108.44.247.215.1

21.36.203.188.119.88

STRING: RUNNING

6. I can also use snmpwalk to verify an OID for attribute ExecuteThreadCurrentIdleCount under mbean executeQueueRuntime, is correct:

C:\test>java snmpwalk -c public@examplesServer 66.92.88.90 1.3.6.1.4.1.140.625.180.1.25

Object ID: .1.3.6.1.4.1.140.625.180.1.25.16.101.103.82.137.181.191.243.93.39.42.

219.18.187.126.125.191

INTEGER: 0

7. Use snmptrapd and snmpv1trap to verify the trap destination are configured properly (listen on port, loop continuously), eg:

C:\test>java snmptrapd -p 165

Trap received from: /127.0.0.1, community: public

Enterprise: .1.3.6.1.4.1.140.625

Agent: /0.0.0.0

TRAP_TYPE: 6

SPECIFIC NUMBER: 75

Time: 17248

VARBINDS:

Object ID: .1.3.6.1.4.1.140.625.100.5

STRING: Wed May 28 00:46:12 EDT 2008

Object ID: .1.3.6.1.4.1.140.625.100.10

STRING: examplesServer

Object ID: .1.3.6.1.4.1.140.625.100.55

STRING: jmx.monitor.gauge.high

Object ID: .1.3.6.1.4.1.140.625.100.60

STRING: 0

Object ID: .1.3.6.1.4.1.140.625.100.65

STRING: 0

Object ID: .1.3.6.1.4.1.140.625.100.70

STRING:

Object ID: .1.3.6.1.4.1.140.625.100.75

STRING: ExecuteQueueRuntime

Object ID: .1.3.6.1.4.1.140.625.100.80

STRING: ExecuteThreadCurrentIdleCount

8. Reference docs for WLS 10.0 utils:

http://edocs.bea.com/wls/docs100/snmpman/snmpcli.html#wp1181263

9. Set up environment, by invoking:

${WL_HOME}\server\bin\setWLSEnv.cmd

For examples:

SnmpGet –

C:\test>java weblogic.diagnostics.snmp.cmdline.Manager SnmpGet .1.3.6.1.4.1.140.625.360.1.60.16.171.5.160.79.30.237.108.44.247.215.121.36.203.188.119.88