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From Sijie Guo <si...@apache.org>
Subject Re: Bookkeeper Backup and Disaster Recovery
Date Tue, 09 Aug 2016 19:47:13 GMT
Enrico,

At twitter, we didn't do cross-cluster replication for bookkeeper. We did
this at higher level.

For zookeeper, we periodically dump the zookeeper files (data and txn log
files) to HDFS for backup.

- Sijie

On Wed, Aug 3, 2016 at 7:13 AM, Enrico Olivelli - Diennea <
enrico.olivelli@diennea.com> wrote:

> Hi,
> I would like set up an effective disaster recovery system for BookKeeper.
> The case of a single bookie unrecoverably lost is not a problem "by
> design", we use replication for such an issue.
> So my case is that all bookies in the same cluster are lost (datacenter
> disaster).
>
> From my point of view the element to backup are:
> - Bookies
> - ZooKeeper data related to BookKeeper
>
> Since it is not possible to take a "distributed snapshot" of the system, I
> wonder if anyone has already dealt with this problem and how it is possible
> to implement a basic recovery procedure which allows at least to read
> bookie contents.
>
> One idea is to backup only bookie data, and read contents parsing raw data
> files.
>
> Any experience ?
>
> Thanks
>
> --
> Enrico Olivelli
> Software Development Manager @Diennea
> Tel.: (+39) 0546 066100 - Int. 925
> Viale G.Marconi 30/14 - 48018 Faenza (RA)
>
> MagNews - E-mail Marketing Solutionshttp://www.magnews.it
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>
>
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