We (BackType) recently released our database ElephantDB as open source. I thought that the Clojure community at large would find this project interesting as it's written in Clojure.
ElephantDB is a specialized database for exporting key/value data from Hadoop and serving it in a read-only fashion. It has seemless integration with Cascalog through the elephantdb-cascalog project. ElephantDB makes use of Hadoop, Thrift, and BerkeleyDB Java Edition. Writing this database in Clojure was a great experience. The place where Clojure really shined was for writing the unit tests. Clojure's dynamic capabilities made it really easy to do things like mock out remote servers or mock out pieces that weren't deterministic so that they could be tested. There were a few key macros I wrote for testing purposes that made it a lot easier to write and understand the tests. If you'd like to know more about the project, check out our introductory blog post and the GitHub repos. http://tech.backtype.com/introducing-elephantdb-a-distributed-database https://github.com/nathanmarz/elephantdb https://github.com/nathanmarz/elephantdb-cascalog -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en