Messages in the error log

The nco_http utility makes extensive entries in the log file (mttrapd.log) indicating the progress of each operation.

For example, here are a sample set of messages for a get command:

2012-11-15T13:58:06: Debug: D-NHT-105-002: [HTTP Listener]: Connection from 
'test28.example.com' (9.180.210.223) on socket '16'.
2012-11-15T13:58:06: Debug: D-NHT-105-008: [HTTP Listener]: Data available
 from 'test28.example.com' (9.180.210.223) on socket '16'.
2012-11-15T13:58:06: Debug: D-NHT-105-009: [WorkPoolThread]: Received HTTP
 request from 'test28.example.com' (9.180.210.223) on socket '16'.
2012-11-15T13:58:06: Information: I-UNK-000-000: Property NHttpd.BasicAuth 
is empty, allowing connection with no authentication
2012-11-15T13:58:06: Information: I-UNK-000-000: HTTP: POST: /probe/common 
request from auth=none host=[9.180.210.223]
2012-11-15T13:58:06: Debug: D-UNK-000-000: Received SNMPGET request
2012-11-15T13:58:06: Debug: D-UNK-000-000: Calling snmpget
2012-11-15T13:58:06: Debug: D-UNK-000-000: Return value : Router 1
2012-11-15T13:58:06: Debug: D-UNK-000-000: Rules file processing took 
2323 usec.
2012-11-15T13:58:06: Debug: D-UNK-000-000: Flushing events to object servers
2012-11-15T13:58:07: Debug: D-NHT-105-001: [HTTP Listener]: 
Disconnection from 'test28.example.com' (9.180.210.223) on socket '16'.

For SNMPGET and SNMPGET_P operations, some of these messages can indicate that there are problems with the syntax of the nco_http command. When a command completes successfully, the log file includes messages similar to the following example:

2012-11-15T13:58:06: Debug: D-UNK-000-000: Received SNMPGET request
2012-11-15T13:58:06: Debug: D-UNK-000-000: Calling snmpget
2012-11-15T13:58:06: Debug: D-UNK-000-000: Return value : Router 1
2012-11-15T13:58:06: Debug: D-UNK-000-000: Rules file processing took 2323 usec.

Note that the returned value is filled in with the data retrieved from the target.

If there is an error in the command syntax, however, that segment of messages is similar to the following example:

2012-11-15T15:28:52: Debug: D-UNK-000-000: Received SNMPGET_P request
2012-11-15T15:28:52: Debug: D-UNK-000-000: Calling snmpget_p
2012-11-15T15:28:52: Error: E-P_M-102-000: snmpget: (noSuchName) There is no such 
variable name in this MIB.
2012-11-15T15:28:52: Debug: D-UNK-000-000: Return value :
2012-11-15T15:28:52: Debug: D-UNK-000-000: Rules file processing took 1677 usec.

In this case, the returned value is blank and the message immediately before that indicates the type of error. In this example, the value of the -oid option is incorrect.