Hi Harald ,

We saw in our internal Veeam repo that only 4TB used created more than 10M
objects.

I don't know if Veeam need to list content inside the bucket, that will make
a 500 millions bucket not a good solution at least in our experience with
sharding.

I read someone in the IRC telling that they're using 1M objects per shard,
that means that shard limit is a "soft" limit. And deployments with
multi-site with a limit of 128 shards.

Manuel



-----Mensaje original-----
De: ceph-users <ceph-users-boun...@lists.ceph.com> En nombre de Harald Staub
Enviado el: lunes, 17 de junio de 2019 17:01
Para: Ceph Users <ceph-users@lists.ceph.com>
Asunto: [ceph-users] Even more objects in a single bucket?

There are customers asking for 500 million objects in a single object
storage bucket (i.e. 5000 shards), but also more. But we found some places
that say that there is a limit in the number of shards per bucket, e.g.

https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/2/html/ob
ject_gateway_guide_for_ubuntu/administration_cli

It says that the maximum number of shards is 7877. But I could not find this
magic number (or any other limit) on http://docs.ceph.com.

Maybe this hard limit no longer applies to Nautilus? Maybe there is a
recommended soft limit?

Background about the application: Veeam (veeam.com) is a backup solution for
VMWare that can embed a cloud storage tier with object storage (only with a
single bucket). Just thinking loud:  Maybe this could work with an indexless
bucket. Not sure how manageable this would be, e.g. to monitor how much
space is used. Maybe separate pools would be needed.

  Harry
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