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From "B. Todd Burruss" <>
Subject Re: New feature / educational project
Date Tue, 08 Feb 2011 22:59:39 GMT
i am interested in plugins/triggers.  it seems like a good way to solve 
the problem of streaming data out of cassandra into, say a hadoop 
cluster or some other BI backend

On 02/08/2011 02:25 PM, Jeremy Hanna wrote:
> I think the plugins/triggers/coprocessors is a great discussion to get going again if
there is interest.  It's been on the to-do list for a long time and just from what I've heard
anecdotally, there is a lot of interest.
> On Feb 8, 2011, at 3:57 PM, David G. Boney wrote:
>> Hi All,
>> I am also interested a stored procedure feature. I spoke with Matthew Dennis at DataStax
about a month ago about some of the issues involved with implementing a stored procedure feature.
If anyone is in the Austin area and wants to get together for a cup of coffee to discuss this
feature, drop me a line.
>> -------------
>> Sincerely,
>> David G. Boney
>> On Feb 8, 2011, at 3:47 PM, Miguel Verde wrote:
>>> See whatever preceded and
>>> the current for
>>> potentially similar ideas, as well as
>>> and
>>> for related issues.
>>> On Tue, Feb 8, 2011 at 2:56 PM, Morten Wegelbye Nissen<>  wrote:
>>>> Hello mighty developers of Cassandra,
>>>> I have been thinking of creating a feature like stored procedures for
>>>> Cassandra.
>>>> Concept is actually pretty simple add one of the javascript compilers. (
>>>> Mozilla Rhino or one alike ). Save js source in a CF in the system keyspace.
>>>> Add feature to thrift to invoke the code. Return just like get_slice.
>>>> Needless to say that the execution environment needs access to the
>>>> keyspaces and needs to be sandboxed. (ie. no access to filesystem etc. )
>>>> On the cli it would be something like;>  invoke myProc param1, param2,
>>>> param3
>>>> The alternative where the expansions, like the existing once, is done by
>>>> implementing interfaces. Would require a rather complex distribution  of
>>>> jars.
>>>> Now I might have the option to get this done as a educational project,
>>>> where I after the project would like to release the code to freedom.
>>>> Would a feature like that ever make it to the core of Cassandra?
>>>> ./Morten

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