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From Aaron Turner <>
Subject Re: Integrated cassandra
Date Wed, 26 Sep 2012 17:29:39 GMT
Cassandra is a distributed database meant to run across multiple systems.
Is your existing Java application distributed as well?  Does "maintain
control" mean "exclude end users from connecting to it and making changes"
or merely "provisioning and keep it running well operationally for the
application"?  Honestly, either of those seem like a lot to ask right now
for any solution requiring the scalability that Cassandra provides.

That said, I've done embeded PostgreSQL in the past.  Not distributed mind
you.  And it was on an appliance.  We picked PG because it's super reliable
and very good at recovering from all kinds of evil things that customers
do... pulling power cords, etc.  I don't think any of our customers even
knew we were using PG unless they looked in the Licensing section of the

Personally, I don't think Cassandra is there yet where it can be a opaque
datastore from the end user perspective- especially if you're distributing
it as part of a software application and don't have full control over the
hardware/environment.  Not to say Cassandra hasn't been reliable for us,
but it's far from "install it and forget it".  Simple things like dealing
with network/node outages or adding/removing new nodes are complicated
enough that I'd hesitant to automate without some human familiar with
Cassandra being involved.

On Tue, Sep 25, 2012 at 10:11 PM, Robin Verlangen <> wrote:

> Hi there,
> Is there a way to "embed"/package Cassandra with an other Java application
> and maintain control over it? Is this done before? Are there any best
> practices?
> Why I want to do this? We want to offer as less as configuration as
> possible to our customers, but only if it's possible without messing around
> in the Cassandra core.
> Best regards,
> Robin Verlangen
> *Software engineer*
> *
> *
> W
> E
> <>
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Aaron Turner         Twitter: @synfinatic - Pcap editing and replay tools for Unix &
Those who would give up essential Liberty, to purchase a little temporary
Safety, deserve neither Liberty nor Safety.
    -- Benjamin Franklin
"carpe diem quam minimum credula postero"

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