dlss

DLSS is a distributed key-value storage for Erlang/OTP applications.

Features

Keys and values are arbitrary Erlang terms.
Data is stored sorted by key.
Each storage is segmented. Segments can be distributed among Erlang nodes conforming a cluster.
Full support of ACID transactions (many thanks to mnesia)
Support next types of storage:
- ram. In-memory storage. Fast but not persistent (erlang ets is under the hood).
- ramdisc. All the data is kept in memory (erlang ets), but the storage also provides persistence. Read/Scan operations are as fast as for 'ram' type. Write operations are a bit slower because of maintaining a sequential log.
- disc. Persistent type storage. Read/Write/Scan operations are slower than for 'ram' and 'ramdisc' types. But the storage resides on the disc (except for buffer and cache) and therefore does not require a lot of RAM. This type of storage uses leveldb under the hood. Many thanks to developers of leveldb, eleveldb, and mnesia_eleveldb projects. You work is great!

$ rebar3 compile