[lustre-discuss] kerberised lustre performance

Sebastien Buisson sbuisson at ddn.com
Fri Apr 28 01:19:02 PDT 2017


Hi,

I have not specifically measured the performance impact of getting the Kerberos ticket before any Lustre request can be sent by the client. It happens at the first connection (so when mounting) and then when the ticket expires. Otherwise the ticket is cached.
So unless the ticket has a very short lifetime of a few seconds, contacting the Kerberos server to renew the ticket should have very little impact on a standard production workflow.

Cheers,
Sebastien.

> Le 27 avr. 2017 à 13:10, E.S. Rosenberg <esr+lustre at mail.hebrew.edu> a écrit :
> 
> Hi everyone,
> I just saw Sebatians' talk at LUG 2016 (Yes I know I'm a bit behind times) and I was wondering if and how much a performance impact there is from the need to get kerberos tickets before file actions (or is it only mounting?)...
> 
> https://www.youtube.com/watch?v=zo6b03zxrIs
> 
> Thanks,
> Eli
> 
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