[SNMP4J] Fwd: Question on SNMP 1.11.2

[Prathib Kumar]

Yes frank, the object itself is not changed.

What kind of problems do you think in JDK or in RHEL ? I searched in the
net with this error and couldnt get anything of this sort ?

We use java 1.7.0_40 version and RHEL 5.10

Are you aware of any similar issues ?

Regards
Prathib Kumar.


On Thu, Jan 16, 2014 at 2:34 AM, Frank Fock <fock at agentpp.com> wrote:

>  Hi,
>
> If the target object is not changed itself then it will be OK.
>
> Best regards,
> Frank
>
> Am 15.01.2014 22:01, schrieb Prathib Kumar:
>
> Hi Frank,
>
>  Thanks for your response. I corrected the alias name.
>
>  We use target object as the class member variable in our code, after we
> pass the target object to the snmp4j, it might be possible that targetObj
> might be re-initialized with the different target object for a different
> device.
>
>  I think that shouldnt be a problem rite ?
>
>  Regards
> Prathib Kumar.
>
>
> On Thu, Jan 16, 2014 at 1:28 AM, Frank Fock <fock at agentpp.com> wrote:
>
>>  Hi Prathib,
>>
>> First of all, the email address of the SNMP4J mailing list is
>> snmp4j at agentpp.org
>>
>> This might be an issue with your JDK or operating system, if
>> you do not modify the Target object while a request is being
>> processed by SNMP4J.
>>
>> Best regards,
>> Frank
>>
>>
>>
>>>  We are using SNMP4J 1.11.2 in our product and our product runs on RHEL
>>> 5.10.
>>>
>>>  So far, we have supported only IPV4 and now we started supporting IPV6
>>> and we are getting the following exception only when we query the IPV6 and
>>> IPV4 parallely.
>>>
>>>  If we have only IPV4 devices in our product, then we dont see this
>>> issue. If we have mix of both IPV4 and IPV6, then we hit upon this issue.
>>>
>>>
>>>  Hence I went thru the SNMP4J source code and got a question that
>>> whether sendPDU() in Snmp is thread safe ? I read the FAQ and found that it
>>> says its thread safe.
>>>
>>>  Since ours is multithreaded environment, any idea what could have
>>> caused this issue ?
>>>
>>>  *Exception Trace :*
>>>  Caused by: org.snmp4j.MessageException:* Address family not supported
>>> by protocol*
>>>         at
>>> org.snmp4j.MessageDispatcherImpl.sendPdu(MessageDispatcherImpl.java:494)
>>>         at
>>> org.snmp4j.util.MultiThreadedMessageDispatcher.sendPdu(MultiThreadedMessageDispatcher.java:146)
>>>         at org.snmp4j.Snmp.sendMessage(Snmp.java:1082)
>>>         at org.snmp4j.Snmp.send(Snmp.java:971)
>>>         at org.snmp4j.Snmp.send(Snmp.java:955)
>>>         at
>>> com.cisco.xmp.snmp.sessionmgr.async.ResponseFuture.internalSend(ResponseFuture.java:103)
>>>         at
>>> com.cisco.xmp.snmp.sessionmgr.async.ResponseFuture.start(ResponseFuture.java:140)
>>>
>>>  Please let me know if you need any other info.
>>>
>>>
>>>  Regards
>>>  Prathib Kumar.
>>>
>>
>>
>>
>>   --
>> ---
>> AGENT++
>> Maximilian-Kolbe-Str. 10
>> 73257 Koengen, Germanyhttps://agentpp.com
>> Phone: +49 7024 8688230
>> Fax:   +49 7024 8688231
>>
>>
>
> --
> ---
> AGENT++
> Maximilian-Kolbe-Str. 10
> 73257 Koengen, Germanyhttps://agentpp.com
> Phone: +49 7024 8688230
> Fax:   +49 7024 8688231
>
>