Hi all:

I am having problems with not getting data from Agent
X master agent (snmpd). It is related to timeout and I
am not sure what to do or where to start.

I have a sub-agent which I developed to monitor my
application which consists of a set of software
processes. I have instrummented my monitored
application to return data when it receives request
from sub-agent. Between sub-agent and my monitored
application, I am just using regular socket C
blocking-mode send/receive APIs and when I get data
from my application, I will populate the MIB. I have a
time out in my sub-agent.conf. I will wait for that
amount of time after forwarding the request to my
application.

I am using MIB table, each row in the table represents
one process, the key is PID. I am sending snmpwalk
commands continously every <N> seconds. The processes
I am monitoring are overloaded (busy doing their job).
I have create a new thread in each of those processes
to respond to the SNMP request.  When the system is
overloaded, my sub-agent times out, and I think
eventually master agent times out too and I started
getting the following errors for ever.!!!


No Such Object available on this agent at this OID

Note that at that time, snmpwalk commands are still
being sent continuously AND the system is still
overloaded (because I am giving heavy load to my
application for stress test).

In a situation like that what should I do to avoid
those errors? Is it possible? Where do I start? 

For normal load testing, everything is fine. I don';t
get those errors and my snmpwalk commands get expected
data from my application.


Any comment, idea, suggestion would be very much
appreciated. If I am not clear in describing the
problem, please let me know.


Thanks in advance!
Steve




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