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From Kevin Burton <bur...@spinn3r.com>
Subject Re: Would we have data corruption if we bootstrapped 10 nodes at once?
Date Sun, 18 Oct 2015 22:44:51 GMT
An shit.. I think we're seeing corruption.. missing records :-/

On Sat, Oct 17, 2015 at 10:45 AM, Kevin Burton <burton@spinn3r.com> wrote:

> We just migrated from a 30 node cluster to a 45 node cluster. (so 15 new
> nodes)
>
> By default we have auto_boostrap = false
>
> so we just push our config to the cluster, the cassandra daemons restart,
> and they're not cluster members and are the only nodes in the cluster.
>
> Anyway.  While I was about 1/2 way done adding the 15 nodes,  I had about
> 7 members of the cluster and 8 not yet joined.
>
> We are only doing 1 at a time because apparently bootstrapping more than 1
> is unsafe.
>
> I did a rolling restart whereby I went through and restarted all the
> cassandra boxes.
>
> Somehow the new nodes auto boostrapped themselves EVEN though
> auto_bootstrap=false.
>
> We don't have any errors.  Everything seems functional.  I'm just worried
> about data loss.
>
> Thoughts?
>
> Kevin
>
> --
>
> We’re hiring if you know of any awesome Java Devops or Linux Operations
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>
> Founder/CEO Spinn3r.com
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>
>


-- 

We’re hiring if you know of any awesome Java Devops or Linux Operations
Engineers!

Founder/CEO Spinn3r.com
Location: *San Francisco, CA*
blog: http://burtonator.wordpress.com
… or check out my Google+ profile
<https://plus.google.com/102718274791889610666/posts>

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