Re: [Zookeeper-user] httpd zookeeper module (experimental)

[Patrick H. <ph...@gm...>]

These both sound very interesting. At some point we should consider 
having a "contrib" area in zk for layers like this.

Have you heard anyone implementing webdav on top of zookeeper? Seems 
like it would be a pretty good match (my experience with webdav is 
limited though). There are lots of webdav clients and client libs available.

Patrick

Ted Dunning wrote:
> I have a somewhat similar layer that provides a rest interface for crud
> operations on zookeeper via a stateless servlet.
> 
> It also provides a simple job queueing interface similar to amazon's SQS.
> They idea is that the rest interface does the fancy semantics so exposing
> sequential and ephemeral files isn't so important.  In fact, the direct
> interface to zoo came about primarily as a debugging and error correcting
> layer.  I build this interface using Grails over a weekend or so and it is
> turning out very helpful.
> 
> I imagine that a number of people are building things like this.  I can
> release the file interface part, but would have problems releasing the
> entire package.
> 
> What sort of semantics would be useful to the community at large?
> 
> 
> On 5/1/08 7:23 PM, "Chris Darroch" <ch...@pe...> wrote:
> 
>> Hi --
>>
>>    I thought I'd post here a quick note about an experimental
>> pair of Apache httpd modules I've written, one of which connects
>> to ZooKeeper and uses it to provide a robust shared key/value
>> storage system.  The other module adds a simple generic HTTP-based
>> interface to ZooKeeper and/or several other key/value storage
>> providers.
>>
>>    These modules are only functional with the unreleased "trunk"
>> version of httpd (a.k.a. version 2.4).  Because the common
>> "small object cache" provider interface (still under active development)
>> only offers simple store/retrieve/delete semantics, some of ZooKeeper's
>> most powerful features are unavailable, such as ephermeral and
>> sequential nodes.  However, perhaps future work will make these
>> more easily integrated (I'm not sure how, though, at the moment).
>>
>>    At any rate, for those interested, the modules are at:
>>
>> http://people.apache.org/~chrisd/projects/shared_map/
>>
>>    There's a longer description of them in this email to the
>> httpd-dev mailing list:
>>
>> http://mail-archives.apache.org/mod_mbox/httpd-dev/200805.mbox/%3c481A36B2.306
>> 09...@pe...%3e
>>
>>    Please reply to me with any bugs or suggestions.
>>
>> Chris.
> 
> 
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