Re: A practical approach to efficiently store 100 billions small objects in Ceph

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Hi,

On 11/03/2021 04:38, Szabo, Istvan (Agoda) wrote:
> Does this mean that even in an object store the files which is smaller than 4MB  will be packed in one 4 MB object?
I'm not sure I understand the question. Would you be so kind as to rephrase it?

Cheers
>
> -----Original Message-----
> From: Loïc Dachary <loic@xxxxxxxxxxx>
> Sent: Thursday, March 11, 2021 2:13 AM
> To: Konstantin Shalygin <k0ste@xxxxxxxx>
> Cc: Ceph Users <ceph-users@xxxxxxx>; swh-devel@xxxxxxxx
> Subject:  Re: A practical approach to efficiently store 100 billions small objects in Ceph
>
> Email received from outside the company. If in doubt don't click links nor open attachments!
> ________________________________
>
> Hi Konstantin,
>
> Thanks for the advice. Luckily objects are packed together and Ceph will only see larger objects. The median object size is ~4KB, written in RBD images using the default 4MB[0] object size. That will be ~100 millions RADOS objects instead of 100 billions.
>
> Cheers
>
> [0] https://docs.ceph.com/en/latest/man/8/rbd/#cmdoption-rbd-object-size
>
> On 10/03/2021 17:44, Konstantin Shalygin wrote:
>> Loic, please wait (or use shaman builds) for 14.2.17 cause for clusters with billions of injects code was not optimal [1] at objects delete step
>>
>>
>> [1] https://tracker.ceph.com/issues/47044 <https://tracker.ceph.com/issues/47044>
>> k
>>
>> Sent from my iPhone
>>
>>> On 10 Mar 2021, at 17:55, Loïc Dachary <loic@xxxxxxxxxxx> wrote:
>>>
>>> The next step will be to write and run benchmarks
> --
> Loïc Dachary, Artisan Logiciel Libre
>
>
>
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-- 
Loïc Dachary, Artisan Logiciel Libre


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