The second of the libraries Factual is open sourcing today is Riffle, which is a write-once key/value storage engine. By disallowing random writes, it allows for O(1) on-disk reads, and a read throughput is both faster and significantly more stable than LevelDB and other, similar databases. Of course, any changes to the database require merging two existing databases or writing another one from scratch, which can be done either in-process or using Hadoop.
A blog post describing the library can be found at http://blog.factual.com/how-factual-uses-persistent-storage-for-its-real-time-services, and the library itself can be found at https://github.com/factual/riffle. We look forward to see how it's used by others. Zach -- 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 --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
