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Date: Mon, 30 Sep 2013 10:06:36 -0700
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 <CAEDUwd1VShnfb+Gpt8o_qNG=E1=cD95-n7oaLOymF9nYHaYnBw@mail.gmail.com>
Subject: Re: Why Solandra stores Solr data in Cassandra ? Isn't solr complete
 solution ?
From: Robert Coli <rcoli@eventbrite.com>
To: "user@cassandra.apache.org" <user@cassandra.apache.org>
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On Mon, Sep 30, 2013 at 8:50 AM, Ertio Lew <ertiop93@gmail.com> wrote:

> Solr's data is stored on the file system as a set of index files[
> http://stackoverflow.com/a/7685579/530153]. Then why do we need anything
> like Solandra or DataStax Enterprise Search? Isn't Solr complete solution
> in itself ?  What do we need to integrate with Cassandra ?
>

Solr's index sitting on a single machine, even if that single machine can
vertically scale, is a single point of failure.

The value add of DES is that the index has the same availability
characteristics as the underlying data, because it is stored in the same
cluster.

=Rob

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<div dir=3D"ltr">On Mon, Sep 30, 2013 at 8:50 AM, Ertio Lew <span dir=3D"lt=
r">&lt;<a href=3D"mailto:ertiop93@gmail.com" target=3D"_blank">ertiop93@gma=
il.com</a>&gt;</span> wrote:<br><div class=3D"gmail_extra"><div class=3D"gm=
ail_quote">
<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">Solr&#39;s data is=A0<span =
style=3D"line-height:18px;font-size:14px;font-family:Arial,&#39;Liberation =
Sans&#39;,&#39;DejaVu Sans&#39;,sans-serif">stored on the file system as a =
set of index files[</span><a href=3D"http://stackoverflow.com/a/7685579/530=
153" target=3D"_blank">http://stackoverflow.com/a/7685579/530153</a><span s=
tyle=3D"line-height:18px;font-size:14px;font-family:Arial,&#39;Liberation S=
ans&#39;,&#39;DejaVu Sans&#39;,sans-serif">]. Then why do we need anything =
like Solandra or DataStax Enterprise Search? Isn&#39;t Solr complete soluti=
on in itself ? =A0What do we need to integrate with Cassandra ?</span></div=
>
</blockquote><div><br></div><div>Solr&#39;s index sitting on a single machi=
ne, even if that single machine can vertically scale, is a single point of =
failure.</div><div><br></div><div>The value add of DES is that the index ha=
s the same availability characteristics as the underlying data, because it =
is stored in the same cluster.</div>
<div><br></div><div>=3DRob</div><div>=A0</div></div></div></div>

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