Re: handling timeout while monitoring overloaded application

I understand that there is some timeout value between
master agent and my sub-agent (default 1 second?). I
also have timeout between sub-agent and the
application that is  being monitored. The client
(snmpget/snmpwalk) also has time out (via -t option). 
What guidelines should I follow to set various
timeouts in this situation?  Can they be set
independently without causing timeouts? For example,
between sub-agent and monitored application, the
timeout is set to 60 seconds(sometimes, application is
so busy it can take that long to respond to
sub-agent). Between master and sub-agent, default time
out is 1 second . snmpwalk command has 1000 seconds
timeout. Does these values make sense?

agentxRetries , agentxPingInterval, agentxTimeout
Do these 3 paramters work properly in version 5.2.1?  

agentXRetries, agentXTimeout are to control master
agent (snmpd.conf) only?

I understand 5.2.1 is not the latest one. Does the
current latst version work the same as 5.2.1 in the
area of agentX support? Do u recommend upgrading to
latest version? (my main use of net-snmp is because of
its agentX functionality - I have only 1 MIB, only 1
sub-agent). 5.2.1

Thanks
Steve


--- Wes Hardaker <[email protected]>
wrote:

> >>>>> On Thu, 30 Mar 2006 16:17:27 -0800 (PST),
> "Steve S. Law" <[email protected]> said:
> 
> Steve> I have create a new thread in each of those
> processes
> Steve> to respond to the SNMP request.
> 
> 1) the net-snmp stack is not thread safe from the
> agent perspective.
>    This likely won't work.
> 
> Steve> In a situation like that what should I do to
> avoid
> Steve> those errors? Is it possible? Where do I
> start? 
> 
> You can put the following line in your .conf file
> for your
> agentx-instrumented daemon:
> 
>   agentxPingInterval 30
> 
> Which will make the subagent try to ping the master
> every 30 seconds
> and reconnect if there is no response.
> -- 
> Wes Hardaker
> Sparta, Inc.
> 


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