Re: Data migration between clusters

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Hi,
we definitely faced some issues, yes :)

I don't say it's in any way impossible, and the blog details many of the problems. Test well on a test system with your setup if you are going to do it. The sync speed was a problem we couldn't get around though.

The "actual migration" details the steps we did for the switchover once the data had moved, and that worked.

You could make a process to do this over s3. It would involve more work to ensure all data is actually synchronized, and to make sure ACLs and other things are correct on the new side, but I'm sure it could be done.

Cheers,
Kalle

----- Original Message -----
> From: "Istvan Szabo, Agoda" <Istvan.Szabo@xxxxxxxxx>
> To: "Kalle Happonen" <kalle.happonen@xxxxxx>
> Cc: "ceph-users" <ceph-users@xxxxxxx>
> Sent: Thursday, 24 December, 2020 04:43:44
> Subject: Re:  Re: Data migration between clusters

> Hmmm, doesn’t seems smooth :(
> How about copying bucket with s3 browser :D?
> 
> So the actual migration steps are the steps which went smoothly right?
> 
>> On 2020. Dec 22., at 20:00, Kalle Happonen <kalle.happonen@xxxxxx> wrote:
>>
>> Email received from outside the company. If in doubt don't click links nor open
>> attachments!
>> ________________________________
>>
>> Hi Istvan,
>> I'm not sure it helps, but here's at least some pitfalls we faced when migrating
>> radosgws between clusters.
>>
>> https://cloud.blog.csc.fi/2019/12/ceph-object-storage-migraine-i-mean.html
>>
>> Cheers,
>> Kalle
>>
>> ----- Original Message -----
>>> From: "Szabo, Istvan (Agoda)" <Istvan.Szabo@xxxxxxxxx>
>>> To: "ceph-users" <ceph-users@xxxxxxx>
>>> Sent: Thursday, 17 December, 2020 12:11:19
>>> Subject:  Data migration between clusters
>>
>>> What is the easiest and best way to migrate bucket from an old cluster to a new
>>> one?
>>>
>>> Luminous to octopus not sure does it matter from the data perspective.
>>>
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