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References: <1272031807.62476.ezmlm@cassandra.apache.org>
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Date: Fri, 23 Apr 2010 16:17:49 -0700
Message-ID: <r2y3df6dbaf1004231617ja1fc803fg2399afbe1747da80@mail.gmail.com>
Subject: Re: Question about a potential configuration scenario
From: banks <banksenus@gmail.com>
To: user@cassandra.apache.org
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just make them one cluster, and use the rackAware logic...

On Fri, Apr 23, 2010 at 7:21 AM, Campbell, Joseph <
Joseph_Campbell@comcast.com> wrote:

> Question:
>        It is possible to setup Cassandra such that 2 independent
> Cassandra rings/clusters replicate to one another, ensuring that each
> ring/cluster has at least 1 copy of all the data on each ring/cluster?
>
> The setup is like this:
>        2 Data centers, one in Philadelphia and another in Denver.  In
> each data center there exists a Cassandra ring/cluster.  Each data
> center is being used as a live-live origin (meaning both data centers
> are in use at any point in time).  I would like to be able to guarantee
> that in the event that one or the other of the data centers goes down
> that 'ALL' the available data in that failed data center is also
> available in the other data center such that traffic to the origin
> website that depends on the data can simply be switched over to the
> other site (Using Akamai, or other tools).  Is this type of
> configuration possible/available in Cassandra?  If so how would you set
> it up, and what might some of the draw backs be?
>
> Thanks,
>        Joe Campbell
>
>
>
> --
> Anyone can get hit by a MOVING car,
> but it takes skill to get hit by a PARKED car.
>                     -- Random Tee-shirt on Dysfunction
>
> Joe Campbell | one comcast center | philadelphia, pa 19103 |
> 215.286.5073
>

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just make them one cluster, and use the rackAware logic...<br><br><div clas=
s=3D"gmail_quote">On Fri, Apr 23, 2010 at 7:21 AM, Campbell, Joseph <span d=
ir=3D"ltr">&lt;<a href=3D"mailto:Joseph_Campbell@comcast.com">Joseph_Campbe=
ll@comcast.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0.8ex; borde=
r-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Question:<br>
 =A0 =A0 =A0 =A0It is possible to setup Cassandra such that 2 independent<b=
r>
Cassandra rings/clusters replicate to one another, ensuring that each<br>
ring/cluster has at least 1 copy of all the data on each ring/cluster?<br>
<br>
The setup is like this:<br>
 =A0 =A0 =A0 =A02 Data centers, one in Philadelphia and another in Denver. =
=A0In<br>
each data center there exists a Cassandra ring/cluster. =A0Each data<br>
center is being used as a live-live origin (meaning both data centers<br>
are in use at any point in time). =A0I would like to be able to guarantee<b=
r>
that in the event that one or the other of the data centers goes down<br>
that &#39;ALL&#39; the available data in that failed data center is also<br=
>
available in the other data center such that traffic to the origin<br>
website that depends on the data can simply be switched over to the<br>
other site (Using Akamai, or other tools). =A0Is this type of<br>
configuration possible/available in Cassandra? =A0If so how would you set<b=
r>
it up, and what might some of the draw backs be?<br>
<br>
Thanks,<br>
 =A0 =A0 =A0 =A0Joe Campbell<br>
<font color=3D"#888888"><br>
<br>
<br>
--<br>
Anyone can get hit by a MOVING car,<br>
but it takes skill to get hit by a PARKED car.<br>
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 -- Random Tee-shirt on Dysfunction=
<br>
<br>
Joe Campbell | one comcast center | philadelphia, pa 19103 |<br>
215.286.5073<br>
</font></blockquote></div><br>

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