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Date: Wed, 11 Sep 2013 11:40:43 -0400
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 <CAPzUSDuP5h2-NcP=eMc5rikgiO1jcmhcuZJEVfh9kyy0o1rVRw@mail.gmail.com>
Subject: Re: making sure 1 copy per availability zone(rack) using EC2Snitch
From: rash aroskar <rashmi.aroskar@gmail.com>
To: user@cassandra.apache.org
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Thanks that is helpful.


On Tue, Sep 10, 2013 at 3:52 PM, Robert Coli <rcoli@eventbrite.com> wrote:

> On Mon, Sep 9, 2013 at 11:21 AM, rash aroskar <rashmi.aroskar@gmail.com>wrote:
>
>> Are you suggesting deploying 1.2.9 only if using Cassandra "DC" outside
>> of EC2 or if I wish to use rack replication at all?
>>
>
> 1) use 1.2.9 no matter what, instead of 1.2.5
> 2) if only *ever* will have clusters in EC2, EC2Snitch is fine, but read
> and understand CASSANDRA-3810, especially if not using vnodes
> 3) if *ever* may have clusters outside of EC2 + inside EC2, use
> GossipingPropertyFileSnitch
> 4) if using vnodes, just create a cluster out of hosts with 50% in each AZ
> and you should be all set.
>
> =Rob
>

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<div dir=3D"ltr">Thanks that is helpful.=A0</div><div class=3D"gmail_extra"=
><br><br><div class=3D"gmail_quote">On Tue, Sep 10, 2013 at 3:52 PM, Robert=
 Coli <span dir=3D"ltr">&lt;<a href=3D"mailto:rcoli@eventbrite.com" target=
=3D"_blank">rcoli@eventbrite.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div class=3D"im">On Mon, S=
ep 9, 2013 at 11:21 AM, rash aroskar <span dir=3D"ltr">&lt;<a href=3D"mailt=
o:rashmi.aroskar@gmail.com" target=3D"_blank">rashmi.aroskar@gmail.com</a>&=
gt;</span> wrote:<br>
</div><div class=3D"gmail_extra"><div class=3D"gmail_quote"><div class=3D"i=
m">

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div>Are you suggesting dep=
loying 1.2.9 only if using Cassandra &quot;DC&quot; outside of EC2 or if I =
wish to use rack replication at all?</div>


</div></blockquote><div><br></div></div><div>1) use 1.2.9 no matter what, i=
nstead of 1.2.5</div><div>2) if only *ever* will have clusters in EC2, EC2S=
nitch is fine, but read and understand CASSANDRA-3810, especially if not us=
ing vnodes</div>


<div>3) if *ever* may have clusters outside of EC2 + inside EC2, use Gossip=
ingPropertyFileSnitch=A0</div><div>4) if using vnodes, just create a cluste=
r out of hosts with 50% in each AZ and you should be all set.</div><div>

<br>
</div><div>=3DRob</div></div></div></div>
</blockquote></div><br></div>

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