[SNMP4J] Received response that cannot be matched to any outstanding request

[Frank Fock]

Rob,

To get a clean picture, you should set the retries value
to zero and then the timeout value to a large value
(let's say 5min.). If you then still get those messages,
you need to further investigate them.

You design sounds pretty feasible.

Best regards,
Frank

Walker, Rob wrote:
> 
> Frank,
> 
> Thank you for the response.  I have adjusted the timeout and retry
> values, however I'm still dropping packets.  Perhaps I'm not
> implementing correctly.  I'm constructing a single Snmp session and
> TransportMapping.  I then loop through 2000+ instances of a class that
> contains its own PDU and Target.  I'm using the TableUtils getTable to
> walk particular trees.  I'm utilizing the Executor framework
> CompletionService to collect data in parallel. 
> 
> Once again Thank You for the reponse,
> 
> Robert Walker  
> 
> 
> 
> 
> Hi Rob,
> 
> The UDP buffer size is increased on the operating system
> level. So the first choice is to increase the timeout
> and then the retries of the Target instance you use
> to send the request.
> 
> Best regards,
> Frank
> 
> Walker, Rob wrote:
>> I'm receiving:  Received response that cannot be matched to any
>> outstanding request.
>>
>>  
>>
>> A possible fix to this problem was suggested by. 
>>
>>  
>>
>> Have you tried to increase the timeout value?
>> Also consider UDP buffer sizes. That is, when
>> sending many requests in short time, then there
>> could be UDP buffer overflows.
>>  
>> Another common error is reusing PDUs between
>> concurrent requests without cloning the PDU/request
>> ID.
>>  
>>
>>  
>>
>>  
>>
>> How do you increase the UPD buffer size?
>>
>>  
>>
>> I'm using this code snippet to construct the Transport Mapping;
>>
>>  
>>
>>         AbstractTransportMapping transport = null;
>>
>>         
>>
>>         try {
>>
>>             transport = new DefaultUdpTransportMapping();
>>
>>  
>>
>>         } catch (IOException e) {
>>
>>             // TODO
>>
>>         }
>>
>>  
>>
>> Thanks in advance,
>>
>>  
>>
>> Robert Walker
>>
>>  
>>
>>  
>>
>> _______________________________________________
>> SNMP4J mailing list
>> SNMP4J at agentpp.org
>> http://lists.agentpp.org/mailman/listinfo/snmp4j
> 

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