Re: Archive in Ceph similar to Hadoop Archive Utility (HAR)

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thanks Anthony and Janne....exactly what I have been looking for!

On Fri, Feb 25, 2022 at 9:25 AM Janne Johansson <icepic.dz@xxxxxxxxx> wrote:

> Den fre 25 feb. 2022 kl 08:49 skrev Anthony D'Atri <
> anthony.datri@xxxxxxxxx>:
> > There was a similar discussion last year around Software Heritage’s
> archive project, suggest digging up that thread.
> > Some ideas:
> >
> > * Pack them into (optionally compressed) tarballs - from a quick search
> it sorta looks like HAR uses a similar model.  Store the tarballs as RGW
> objects, or as RBD volumes, or on CephFS.
>
> After doing several different kinds of storage solutions in my career,
> this above advice is REALLY important. Many hard to solve problems
> have started out with "it is just one million files/objects" and when
> you reach 50 and sound the alarm, people try to throw money at the
> problem instead, and then you reach 2-3-400M and then you can't ask
> for the index in finite time without it being invalid by the time the
> list is complete.
>
> If you have a possibility to stick 10,100,1000 small items into a
> .tar, into a .zip, into whatever, DO IT. Do it before the numbers grow
> too large to handle. When the numbers grow too big, you seldom get the
> chance to both keep running in the too-large setup AND re-pack them at
> the same time.
>
> --
> May the most significant bit of your life be positive.
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