NatanDB

A key-value (or more exactly key-array) standalone database written just for fun.

Features

• Supports List, Get, Set, Add/Add(unique), Remove/Remove(all), RemoveAll, Delete commands.
• Built-in GRPC interface
• ACID transactions (which do not work over GRPC so far)
• Write-ahead log compression

Performance

Read performance

Concurrent clients	Num of operations	Performance
1	10000	4566.9 rps
2	10000	7867.3 rps
3	10000	9270.4 rps
4	10000	11315.0 rps
5	10000	12689.9 rps
6	10000	13842.8 rps
7	10000	14789.2 rps
8	10000	15205.0 rps

Test protocol:

1. Start NatanDB server:

   rm -rf ./data && ./natandb run -d ./data

2. Run tests (in a separate terminal):

   for i in `seq 1 8`; do ./natandb test read -n 10000 -q -t $i $i; done

Write performance

Concurrent clients	Num of operations	Performance
1	10000	3101.6 rps
2	10000	6010.6 rps
3	10000	6674.4 rps
4	10000	7130.7 rps
5	10000	7792.5 rps
6	10000	7897.0 rps
7	10000	7399.5 rps
8	10000	8098.5 rps

Test protocol:

1. Start NatanDB server:

   rm -rf ./data && ./natandb run -d ./data

2. Run tests (in a separate terminal):

   for i in `seq 1 8`; do ./natandb test write -n 10000 -q -t $i $i; done

License

MIT