Edis
Edis is a protocol-compatable Server replacement for Redis, written in Erlang. Edis's goal is to be a drop-in replacement for Redis when persistence is more important than holding the dataset in-memory. Edis (currently) uses Google's leveldb as a backend. Future plans call for a multi-master clustering model. Near term goals are to act as a read-slave for existing Redis servers. Learn more → Is Ed
DailyJS: LevelDB and Node: What is LevelDB Anyway?
This is the first article in a three-part series on LevelDB and how it can be used in Node. This article will cover the LevelDB basics and internals to provide a foundation for the next two articles. The second and third articles will cover the core LevelDB Node libraries: LevelUP, LevelDOWN and the rest of the LevelDB ecosystem that’s appearing in Node-land. What is LevelDB? LevelDB is an open-so
LevelDB Might Be a Great Fit for MongoDB
Mark Callaghan: MongoDB doesn’t need multi-statement transactions. Both are limited by 1-writer or N-reader concurrency, but writes to database files are much faster with LevelDB because it doesn’t do update in place. So LevelDB doesn’t lose as much performance for IO-bound workloads by doing 1-writer or N-readers and my guess is that this could make MongoDB much better at supporting IO-bound work
LevelDB Benchmarks
Google, July 2011 In order to test LevelDB's performance, we benchmark it against other well-established database implementations. We compare LevelDB (revision 39) against SQLite3 (version 3.7.6.3) and Kyoto Cabinet's (version 1.2.67) TreeDB (a B+Tree based key-value store). We would like to acknowledge Scott Hess and Mikio Hirabayashi for their suggestions and contributions to the SQLite3 and Kyo
Leveldb file layout and compactions
Files The implementation of leveldb is similar in spirit to the representation of a single Bigtable tablet (section 5.3). However the organization of the files that make up the representation is somewhat different and is explained below. Each database is represented by a set of file stored in a directory. There are several different types of files as documented below: Log files A log file (*.log)
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