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Date: Thu, 23 Jan 2014 12:53:37 -0800
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Subject: Re: How to add a new DC to cluster in Cassandra 2.x
From: Robert Coli <rcoli@eventbrite.com>
To: "user@cassandra.apache.org" <user@cassandra.apache.org>
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On Tue, Jan 21, 2014 at 7:16 AM, Tupshin Harper <tupshin@tupshin.com> wrote:

> This should be the doc you are looking for.
>
>
> http://www.datastax.com/documentation/cassandra/2.0/webhelp/index.html#cassandra/operations/ops_add_dc_to_cluster_t.html
>

Rebuild (like bootstrap) only streams data from a single source replica per
range. IMO, therefore, the above process "should" end with a "repair all
nodes in both data centers with -pr" step. Otherwise, requests to the new
DC with LOCAL_X ConsistencyLevels or CL.ONE may violate consistency.

I have bcc:ed docs@datastax.com, in case they agree and want to modify the
above doc. :D

=Rob

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<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote">On T=
ue, Jan 21, 2014 at 7:16 AM, Tupshin Harper <span dir=3D"ltr">&lt;<a href=
=3D"mailto:tupshin@tupshin.com" target=3D"_blank">tupshin@tupshin.com</a>&g=
t;</span> wrote:<br>

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><p dir=3D"ltr">This should be the doc you ar=
e looking for. </p>
<p dir=3D"ltr"><a href=3D"http://www.datastax.com/documentation/cassandra/2=
.0/webhelp/index.html#cassandra/operations/ops_add_dc_to_cluster_t.html" ta=
rget=3D"_blank">http://www.datastax.com/documentation/cassandra/2.0/webhelp=
/index.html#cassandra/operations/ops_add_dc_to_cluster_t.html</a></p>

</blockquote><div><br></div><div>Rebuild (like bootstrap) only streams data=
 from a single source replica per range. IMO, therefore, the above process =
&quot;should&quot; end with a &quot;repair all nodes in both data centers w=
ith -pr&quot; step. Otherwise, requests to the new DC with LOCAL_X Consiste=
ncyLevels or CL.ONE may violate consistency.</div>

<div><br></div><div>I have bcc:ed <a href=3D"mailto:docs@datastax.com">docs=
@datastax.com</a>, in case they agree and want to modify the above doc. :D<=
/div><div><br></div><div>=3DRob</div><div><br></div></div></div></div>

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