A high performance NoSQL Database Server powered by Go

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README.md

LedisDB

Ledisdb is a high performance NoSQL like Redis written by go. It supports some advanced data structure like kv, list, hash and zset, and may be alternative for Redis.

LedisDB now supports multi database as backend to store data, you can test and choose the proper one for you.

Features

Rich advanced data structure: KV, List, Hash, ZSet, Bit.
Stores lots of data, over the memory limit.
Various backend database to use: LevelDB, goleveldb, LMDB.
Supports expiration and ttl.
Redis clients, like redis-cli, are supported directly.
Multi client API supports, including Golang, Python, Lua(Openresty).
Easy to embed in Golang application.
Replication to guarantee data safe.
Supplies tools to load, dump, repair database.

Build and Install

Create a workspace and checkout ledisdb source

mkdir $WORKSPACE
cd $WORKSPACE
git clone git@github.com:siddontang/ledisdb.git src/github.com/siddontang/ledisdb

cd src/github.com/siddontang/ledisdb

make

LevelDB support

Install leveldb and snappy, if you have installed, skip.

LedisDB supplies a simple shell to install leveldb and snappy:
```
  sh build_leveldb.sh
```
It will default install leveldb at /usr/local/leveldb and snappy at /usr/local/snappy.

LedisDB use the modified LevelDB for better performance, see here.
Set LEVELDB_DIR and SNAPPY_DIR to the actual install path in dev.sh.
make

RocksDB support

todo.......

Server Example

./ledis-server -config=/etc/ledis.json

//another shell
ledis-cli -p 6380

ledis 127.0.0.1:6380> set a 1
OK
ledis 127.0.0.1:6380> get a
"1"

Package Example

import "github.com/siddontang/ledisdb/ledis"
l, _ := ledis.Open(cfg)
db, _ := l.Select(0)

db.Set(key, value)

db.Get(key)

Replication Example

Set slaveof in config or dynamiclly

ledis-cli -p 6381 

ledis 127.0.0.1:6381> slaveof 127.0.0.1 6380
OK

Benchmark

See benchmark.md for more.

Todo

See Issues todo

Thanks

Gmail: cenqichao@gmail.com

Gmail: chendahui007@gmail.com

Gmail: cppgohan@gmail.com

Gmail: tiaotiaoyly@gmail.com

Gmail: wyk4true@gmail.com

Feedback

Gmail: siddontang@gmail.com