nessDB Readme

nessDB is a fast key-value database (embedded), which is written in ANSI C.

nessDB v1 uses log-structured-merge (LSM) trees, it is mostly like LevelDB
nessDB v2 uses Small-Splittable Tree (SST), it's one of Bε-tree and Cache-oblivious write-optimized structure.

Installation

nessDB does not have packages for popular Linux distros, so you have to compile it yourself.

Create third_party directory:

nosqlbench $ mkdir third_party
nosqlbench $ cd third_party

Clone nessDB repository:

third_party $ git clone git://github.com/shuttler/nessDB.git
third_party $ cd nessDB

Checkout proper branch:

# For v1.8.x (with LSM)
nessDB $ git checkout v1.8.2

# For v2.0.x (with SST)
nessDB $ git checkout v2.0

Compile nessDB:

nessDB $ make

Re-run cmake for NoSQL Benchmark:

nessDB $ cd ../..
nosqlbench $ cmake .
...
-- Found NESSDB: ./third_party/nessDB/libnessdb.so 
-- Using NessDB V2 (with SST)
...

Change your nosqlbench.conf:

# nessDB is single-threaded
client_start 1
client_max 1
db_driver 'nessdb'

# update is meaningless for nessdb
test_update 0