[Oisf-users] Issue with file extraction using 'workers' mode with AF_PACKET

Cooper F. Nelson cnelson at ucsd.edu
Mon Oct 21 20:01:05 UTC 2013


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I think I figured this out, you still need to define the
management-cpu-set in 'worker' mode:


>     - management-cpu-set:
>       cpu: [ "all" ]
>       mode: "balanced"


On 10/21/2013 12:24 PM, Cooper F. Nelson wrote:
> There seems to be an issue with threading/load balancing when enabling
> file extraction in worker+AF_PACKET mode when using auto-flow-pinning.
> 
> It looks like some aspect of the file extraction process is not being
> threaded properly and consuming resources on the first core, which in
> turn is causing some pretty extreme packet loss for that CPU.
> 
> Leaving file extraction/tracking enabled and disabling the file
> extraction rules fixes the issue; so this seems to be related to the
> 'file store' process.  Example of observed packet drops listed below:


- -- 
Cooper Nelson
Network Security Analyst
UCSD ACT Security Team
cnelson at ucsd.edu x41042
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