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From Patrick Hunt <ph...@apache.org>
Subject Re: ZooKeeper Perl module
Date Thu, 02 Apr 2009 17:41:06 GMT
Hey Chris this is really great! Thanks for making it available to the 
community, very cool.


Chris Darroch wrote:
> Hi --
>   The http://wiki.apache.org/hadoop/ZooKeeper page includes the
> comment that "someday we hope to get Python, Perl, and REST interfaces".
> I hope I can help with one item from that list now, at least.  I recently
> put together a Perl module named Net::ZooKeeper which is now available
> on CPAN:
> http://cpan.org/modules/by-category/05_Networking_Devices_IPC/Net/Net-ZooKeeper-0.32.tar.gz

> http://search.cpan.org/~cdarroch/Net-ZooKeeper-0.32/ZooKeeper.pm
>   Modelled on the DBI module, it provides an interface to ZooKeeper
> through the synchronous C API functions, e.g.:
>    my $zkh = Net::ZooKeeper->new('localhost:7000');
>    my $ret = $zkh->set('/foo', 'baz');
>   Net::ZooKeeper currently requires ZooKeeper 3.1.1 (or at least
> that version of the C API code) and Perl 5.8.8 or up, including 5.10.x.
>   The test suite is reasonably complete, I think, and covers a
> fair bit of ground.  I've found it useful for testing the ZooKeeper
> C API as well as learning more than I wanted to know about
> XS programming.
>   I've licensed the module under the Apache license 2.0 so it should
> be compatible with ZooKeeper itself if there's interest in including
> it under src/contribs.
>   For those who ask why Perl 5 and not Rakudo/Ruby/Lua/Python/
> [insert cool new dynamic language here], the answer is just that I
> needed an old-style Perl module first.  (As a thought experiment,
> though, I wonder if one could write a Parrot extension that communicated
> directly with ZooKeeper, handled the ping requests internally via
> a Parrot scheduler/thread/whatever, and didn't need the C API at all.
> You could support any language running on Parrot with that.  Well,
> maybe in a few years, anyway.  :-)
>   In the meantime, please report any suggestions or bugs to
> me -- thanks!
> Chris.

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