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From Branton Davis <branton.da...@spanning.com>
Subject Re: Would we have data corruption if we bootstrapped 10 nodes at once?
Date Tue, 20 Oct 2015 16:13:27 GMT
On Mon, Oct 19, 2015 at 5:42 PM, Robert Coli <rcoli@eventbrite.com> wrote:

> On Mon, Oct 19, 2015 at 9:20 AM, Branton Davis <branton.davis@spanning.com
> > wrote:
>
>> Is that also true if you're standing up multiple nodes from backups that
>> already have data?  Could you not stand up more than one at a time since
>> they already have the data?
>>
>
> An operator probably almost never wants to add multiple
> not-previously-joined nodes to an active cluster via auto_bootstrap:false.
>
> The one case I can imagine is when you are starting a cluster which is not
> receiving any write traffic and does contain snapshots.
>
> =Rob
>

Just to clarify, I was thinking about a scenario/disaster where we lost the
entire cluster and had to rebuild from backups.  I assumed we would start
each node with the backed up data and commit log directories already there
and with auto_bootstrap=false, and I also hoped that we could do all nodes
at once, since they each already had their data.  Is that wrong?  If so,
how would you handle such a situation?

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