Re: Stop metadata sync in multi-site RGW

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Hi Casey, thanks for the quick reply.

The goal is pause replication for a while. Thanks a lot, i'll try this rgw_run_sync_thread.

Marcelo M. Miziara
Serviço Federal de Processamento de Dados - SERPRO
marcelo.miziara@xxxxxxxxxxxxx

----- Mensagem original -----
De: "Casey Bodley" <cbodley@xxxxxxxxxx>
Para: "ceph-users" <ceph-users@xxxxxxxxxxxxxx>
Enviadas: Quarta-feira, 19 de junho de 2019 11:54:18
Assunto: Re:  Stop metadata sync in multi-site RGW

Right, the sync_from fields in the zone configuration only relate to 
data sync within the zonegroup. Can you clarify what your goal is? Are 
you just trying to pause the replication for a while, or disable it 
permanently?

To pause replication, you can configure rgw_run_sync_thread=0 on all 
gateways in that zone. Just note that replication logs will continue to 
grow, and because this 'paused' zone isn't consuming them, it will 
prevent the logs from being trimmed on all zones until sync is reenabled 
and replication catches up.

To disable replication entirely, you'd want to move that zone out of the 
multisite configuration. This would involve removing the zone from its 
current zonegroup, creating a new realm and zonegroup, moving the zone 
into that, and setting its log_data/log_meta fields to false. I can 
follow up with radosgw-admin commands if that's what you're trying to do.

On 6/19/19 10:14 AM, Marcelo Mariano Miziara wrote:
> Hello all!
>
> I'm trying to stop the sync from two zones, but using the parameter 
> "--sync_from_all=false" seems to stop only the data sync, but not the 
> metadata (i.e. users and buckets are synced).
>
>
> # radosgw-admin sync status
>           realm XXXXXXXXXXXX (xxxxxx)
>           zonegroup XXXXXXXXXXXX (xxxxxx)
>           zone XXXXXXXXXXXX (xxxxxx)
>   metadata sync syncing
>                 full sync: 0/64 shards
>                 incremental sync: 64/64 shards
>                 metadata is caught up with master
>       data sync source:XXXXXXXXXXXX (xxxxxx)
>                         not syncing from zone
>
> Thanks,
> Marcelo M.
> Serviço Federal de Processamento de Dados - SERPRO
> marcelo.miziara@xxxxxxxxxxxxx
>
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> ceph-users mailing list
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