[lustre-discuss] Lustre QoS using TBF (Strikwerda, Ger)

[肖正刚]

Hi,
You can find details in lustre manual chapter 34.6.5
When enabling TBF policy, you can specify one of the type(NID, JOBID,
OPCode and
UID/GID  )s, or just use "tbf" to enable all of them to do a fine-grained
RPC requests classification and this feature also supports logical
conditional conjunction and disjunction
operations among different types
what's more:
1) you should set rules on every oss
2) once reboot oss or umount ost, rules are gone
3) tbf only limit the rpcrate, not iops or bw directly.

Hope this helps.

Best Regards.

>
>
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Mon, 26 Oct 2020 15:40:23 +0100
> From: "Strikwerda, Ger" <g.j.c.strikwerda at rug.nl>
> To: Lustre discussion <lustre-discuss at lists.lustre.org>
> Subject: [lustre-discuss] Lustre QoS using TBF
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> MFVQWmN4sF7+mzZrmLqOSuQ+x5neA5A at mail.gmail.com>
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>
> Dear community,
>
> We at the university of Groningen (the Netherlands) are looking into doing
> QoS on our Lustre file system to prevent users from suffocating our
> filesystems. Lustre QoS using TBF is mentioned in a couple of
> presentations/slides, but I failed to get/find some useful documentation on
> how to implement such a feature.
>
> My question: Does anybody of you have some experience with Luste QoS in
> production you want to share, does it work, and what are best practises?
>
> --
>
> Vriendelijke groet,
>
> Ger Strikwerdasenior expert multidisciplinary HPC enabler
> simple solution architect
> Rijksuniversiteit Groningen
> CIT/HPC beheer
>
> Smitsborg
> Nettelbosje 1
> 9747 AJ Groningen
> Tel. 050 363 9276
> "God is hard, God is fair
>  some men he gave brains, others he gave hair"
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