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From Todd Nine <>
Subject Re: hector or pelops
Date Sat, 26 Jun 2010 04:14:16 GMT
I like both.  Personally, I have switched from Hector to Pelops.  Let me be
clear, this is not because Hector is not a good client.  Ran has done an
excellent job with Hector, and it was what I initially used for my plugin.
 I preferred Pelops for my Datanucleus plugin since it requires slightly
less code to the caller, and abstracts away a lot of the connect and thrift
API's from the client.  For my purposes it was easier to get a writer from
Pelops and pass it around and let it take care of compiling all the batch
mutations and deletes internally.  When an object graph is committed via
Datanucleaus, I have to batch all writes in a single mutation.  I found it
easier to do these operations with Pelops.  Both are great clients, I'd just
suggest giving them both a shot.

On 25 June 2010 22:54, Dimitry Lvovsky <> wrote:

> We've been using Hector for a month or so now and are very happy with it,
> THANKS Ran! ;-).  Haven't tried pelops though.
> On Thu, Jun 24, 2010 at 8:34 AM, Ran Tavory <> wrote:
>> on the wiki you can find:
>> Example <>
>> DAO<>
>> <>Example
>> simple client<>
>> <>Example
>> read all keys<>
>> <>get
>> all key slices for… in groups <>
>>  <>and KeyspaceTest<>
>> On Thu, Jun 24, 2010 at 1:12 AM, Gavan Hood <> wrote:
>>> Hi Ran,
>>> I have been trialling hector but have not found the  the samples you
>>> refer to, I found your basic ExampleClient but it does not excercise many
>>> functions for instance the getSlice, fields usage etc
>>> I want to develop a solid set of tests for each API call, do you have
>>> some code  that will help me build that. If my code ends up useful I intend
>>> to publish it on my website for others to use.
>>> Regards
>>> Gavan
>>> On Thu, Jun 24, 2010 at 4:43 AM, Ran Tavory <> wrote:
>>>> As the developer of hector I can only speak in favor of my child of love
>>>> and I haven't tried pelops so take the following with a grain of salt...
>>>> Hector sees wide adoption and has been coined the de-facto java client.
>>>> It's been in use in production critical systems since version 0.5.0 by a
>>>> companies.
>>>> The development team is responsive and accepts patches from the
>>>> community and is busy with new features and improvements all the time.
>>>> There's a bug tracking system and all bugs are fixed very fast.
>>>> There are two active mailing lists one for the developers and one for
>>>> the users (85
>>>> members)
>>>> The project is maintained on github (
>>>> and the process in all is very transparent and open to the community.
>>>> Code is well tested with an embedded version of cassandra which I
>>>> contributed back to the main cassandra repository, it runs a mvn and an ant
>>>> build and all release versions are available at
>>>> including source code. We
>>>> love contributions and want to make it as easy as possible to contribute
>>>> back.
>>>> I myself have made a few contributions to cassandra core so I'm well
>>>> familiar with its internals, which doesn't hurt when you write a client...
>>>> ...and finally the features (just the high level):
>>>> - connection pooling
>>>> - datacenter friendly
>>>> - high level API
>>>> - all public cassandra versions in the last 6 months
>>>> - failover
>>>> - simple LB
>>>> - extensive JMX
>>>> - well documented, many examples, wiki, mailing list, team of developers
>>>> and contributors.
>>>> ... and of course there's also thrift if you're into hacking on it...
>>>> On Wed, Jun 23, 2010 at 5:38 PM, Serdar Irmak <>wrote:
>>>>>  Hi
>>>>> Which java client library do you reccommend, hector or pelops and why
>>>>> Best Regards,
>>>>>  <>
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> --
> Dimitry Lvovsky
> Director of Engineering
> ReviewPro
> +34 616 337 103

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