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

[Walker, Rob]

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
> 
>  
> 
>  
> 
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