[Coral-dev] crl_anf and crl_flow stall after 10 minutes

[Srinivas Krishnan]

James,

Which card do you use, we have some experience with the latest 10G DAGs and
how to massage it, to get the best throughput. Also, are you capturing
headers or full packets, if its full packets you want to make sure you size
your DAG buffers correctly, the ones you setup when you load the module.

thanks,
-srinivas



On Thu, Apr 12, 2012 at 9:38 AM, James Grace <jgrac002 at fiu.edu> wrote:

> Thanks Stephen,
>
> I'll try that out.
>
> James
>
>
> On Wed, Apr 11, 2012 at 5:46 PM, Stephen Donnelly <
> Stephen.Donnelly at endace.com> wrote:
>
>>  Sounds like it could be a problem with either the application or the
>> card.****
>>
>> ** **
>>
>> Is the card still seeing packets? Run dagconfig -Ci while coral is still
>> running and see if the counters are incrementing. Is the card dropping
>> packets (e.g. application is not consuming them)? Run dagconfig a few times
>> and see if the stream drop counters are incrementing.****
>>
>> ** **
>>
>> Try capturing with a different application for a while and confirm that
>> the card continues working for more than 10 minutes, e.g. dagbits -d0 -c,
>> or tcpdump -v -i dag0 -w /dev/null****
>>
>> ** **
>>
>> I’m not that familiar with the specific tools, but the CAIDA folks may be
>> able to help. It could be that the packet rate on the 10G link is too much?
>> ****
>>
>> ** **
>>
>> Regards,****
>>
>> Stephen.****
>>
>> ** **
>>
>> *From:* coral-dev-bounces at caida.org [mailto:coral-dev-bounces at caida.org]
>> *On Behalf Of *James Grace
>> *Sent:* Thursday, 12 April 2012 1:06 a.m.
>> *To:* coral-dev at caida.org
>> *Cc:* Julio Ibarra
>> *Subject:* [Coral-dev] crl_anf and crl_flow stall after 10 minutes****
>>
>> ** **
>>
>> Good Morning,****
>>
>> ** **
>>
>> I've encountered a problem when using either crl_flow or crl_anf on a
>> Dag8.1SX with DAG 4.2.1 on a 10GigE link.  After about 10 minutes of
>> collecting, both applications just stall.  The operating system still sees
>> them as active and they are still utilizing the processor, but they are not
>> generating and sort of output.  I've tried debug=2 to see if
>> any useful information was generated from the application, but I didn't get
>> anything.  Has this been an issue for anyone else?****
>>
>> ** **
>>
>> ** **
>>
>> Cheers,****
>>
>> James Grace****
>>
>> Network Engineer****
>>
>> AMPATH / CIARA****
>>
>> Florida International University ****
>>
>
>
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