ZK definitely provides the raw material for something like SQS. Generally, however, a queue *in* ZK isn't quite as good an idea as a queue that is *coordinated* by ZK, mostly for performance reasons. Thus Pat's suggestion to look at Bookkeeper is not a bad one at all. A direct clone of SQS that pushes state to ZK for fail-over purposes would be very easy to build.
On Tue, Dec 6, 2011 at 11:16 AM, Mike Schilli <m...@perlmeister.com> wrote: > Seems like it should be possible to implement a queue service like > Amazon's SQS [1] with ZooKeeper, with queue items becoming 'invisible' > once a client picks them, but pop back into the queue after a timeout > unless the client doesn't explicitly delete them. > > Anyone done that? > > -- > -- Mike > > Mike Schilli > m...@perlmeister.com > > [1] http://aws.amazon.com/sqs >
