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From Timmy Turner <timm.t...@gmail.com>
Subject Re: Looking for a good Ruby client
Date Tue, 20 Nov 2012 14:23:13 GMT
@Mat Brown:

> (while still retaining compatibility with CQL2 structures).

Do you mean by exceeding what Cassandra itself provides in terms of CQL2/3
interoperability?

I'm looking into something similar currently (however in Java not in Ruby)
and would be interested in your experiences, if you follow through with the
plan. Do you have a blog?


Thanks!


2012/11/20 Alain RODRIGUEZ <arodrime@gmail.com>

> @Mat
>
> Well I guess you could add your Ruby client to this list since there is
> not a lot of them yet.
>
> http://wiki.apache.org/cassandra/ClientOptions
>
> Alain
>
>
> 2012/11/20 Mat Brown <mat@brewster.com>
>
>> As the author of Cequel, I can assure you it is excellent ; )
>>
>> We use it in production at Brewster and it is quite stable. If you try
>> it out and find any bugs, we'll fix 'em  quickly.
>>
>> I'm planning a big overhaul of the model layer over the holidays to
>> expose all the
>> new data modeling goodness in CQL3 (while still retaining
>> compatibility with CQL2 structures).
>>
>> On Thu, Nov 15, 2012 at 3:42 PM, Harry Wilkinson <hwilkinson@mdsol.com>
>> wrote:
>> > Update on this: someone just pointed me towards the Cequel gem:
>> > https://github.com/brewster/cequel
>> >
>> > The way it's described in the readme it looks like exactly what I was
>> > looking for - a modern, CQL-based gem that is in active development and
>> also
>> > follows the ActiveModel pattern.  I'd be very interested to hear if
>> anybody
>> > has used this, whether it's stable/reliable, etc.
>> >
>> > Thanks.
>> >
>> > Harry
>> >
>> > On 2 August 2012 00:31, Thorsten von Eicken <tve@rightscale.com> wrote:
>> >>
>> >> Harry, we're in a similar situation and are starting to work out our
>> own
>> >> ruby client. The biggest issue is that it doesn't make much sense to
>> build a
>> >> higher level abstraction on anything other than CQL3, given where
>> things are
>> >> headed. At least this is our opinion.
>> >> At the same time, CQL3 is just barely becoming usable and still seems
>> >> rather deficient in wide-row usage. The tricky part is that with the
>> current
>> >> CQL3 you have to construct quite complex iterators to retrieve a large
>> >> result set. Which means that you end up having to either parse CQL3
>> coming
>> >> in to insert the iteration stuff, or you have to pass CQL3 fragments
>> in and
>> >> compose them together with iterator clauses. Not fun stuff either way.
>> >> The only good solution I see is to switch to a streaming protocol (or
>> >> build some form of "continue" on top of thrift) such that the client
>> can ask
>> >> for a huge result set and the cassandra coordinator can break it into
>> >> sub-queries as it sees fit and return results chunk-by-chunk. If this
>> is
>> >> really the path forward then all abstractions built above CQL3 before
>> that
>> >> will either have a good piece of complex code that can be deleted or
>> worse,
>> >> will have an interface that is no longer best practice.
>> >> Good luck!
>> >> Thorsten
>> >>
>> >>
>> >>
>> >> On 8/1/2012 1:47 PM, Harry Wilkinson wrote:
>> >>
>> >> Hi,
>> >>
>> >> I'm looking for a Ruby client for Cassandra that is pretty high-level.
>>  I
>> >> am really hoping to find a Ruby gem of high quality that allows a
>> developer
>> >> to create models like you would with ActiveModel.
>> >>
>> >> So far I have figured out that the canonical Ruby client for Cassandra
>> is
>> >> Twitter's Cassandra gem of the same name.  It looks great - mature,
>> still in
>> >> active development, etc.  No stated support for Ruby 1.9.3 that I can
>> see,
>> >> but I can probably live with that for now.
>> >>
>> >> What I'm looking for is a higher-level gem built on that gem that works
>> >> like ActiveModel in that you just include a module in your model class
>> and
>> >> that gives you methods to declare your model's serialized attributes
>> and
>> >> also the usual ActiveModel methods like 'save!', 'valid?', 'find', etc.
>> >>
>> >> I've been trying out some different NoSQL databases recently, and for
>> >> example there is an official Ruby client for Riak with a domain model
>> that
>> >> is close to Riak's, but then there's also a gem called 'Ripple' that
>> uses a
>> >> domain model that is closer to what most Ruby developers are used to.
>>  So it
>> >> looks like Twitter's Cassandra gem is the one that stays close to the
>> domain
>> >> model of Cassandra, and what I'm looking for is a gem that's a
>> Cassandra
>> >> equivalent of RIpple.
>> >>
>> >> From some searching I found cassandra_object, which has been inactive
>> for
>> >> a couple of years, but there's a fork that looks like it's being
>> maintained,
>> >> but I have not found any kind of information to suggest the maintained
>> fork
>> >> is in general use yet.  I have found quite a lot of gems of a similar
>> style
>> >> that people have started and then not really got very far with.
>> >>
>> >> So, does anybody know of a suitable gem?  Would you recommend it?  Or
>> >> perhaps you would recommend not using such a gem and sticking with the
>> >> lower-level client gem?
>> >>
>> >> Thanks in advance for your advice.
>> >>
>> >> Harry
>> >>
>> >>
>> >
>>
>
>

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