forked from mirror/ledisdb
163 lines
4.1 KiB
Markdown
163 lines
4.1 KiB
Markdown
# LedisDB
|
|
|
|
Ledisdb is a high performance NoSQL like Redis written by go. It supports some advanced data structure like kv, list, hash, zset, bitmap,set, and may be alternative for Redis.
|
|
|
|
LedisDB now supports multi databases as backend to store data, you can test and choose the proper one for you.
|
|
|
|
## Features
|
|
|
|
+ Rich advanced data structure: KV, List, Hash, ZSet, Bitmap, Set.
|
|
+ Stores lots of data, over the memory limit.
|
|
+ Various backend database to use: LevelDB, goleveldb, LMDB, RocksDB, BoltDB.
|
|
+ Supports expiration and ttl.
|
|
+ Redis clients, like redis-cli, are supported directly.
|
|
+ Multi client API supports, including Go, Python, Lua(Openresty).
|
|
+ Easy to embed in your own Go application.
|
|
+ Restful API support, json/bson/msgpack output.
|
|
+ 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
|
|
|
|
#set build and run environment
|
|
source dev.sh
|
|
|
|
make
|
|
make test
|
|
|
|
|
|
## LevelDB support
|
|
|
|
+ Install leveldb and snappy.
|
|
|
|
LedisDB supplies a simple script to install leveldb and snappy:
|
|
|
|
sh build_tool/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](https://github.com/siddontang/ledisdb/wiki/leveldb-source-modification).
|
|
|
|
+ Set ```LEVELDB_DIR``` and ```SNAPPY_DIR``` to the actual install path in dev.sh.
|
|
+ ```make```
|
|
|
|
## RocksDB support
|
|
|
|
+ Install rocksdb(shared_lib) and snappy first.
|
|
|
|
LedisDB has not supplied a simple script to install, maybe later.
|
|
|
|
+ Set ```ROCKSDB_DIR``` and ```SNAPPY_DIR``` to the actual install path in dev.sh.
|
|
+ ```make```
|
|
|
|
## Choose store database
|
|
|
|
LedisDB now supports goleveldb, lmdb, leveldb, rocksdb, boltdb, it will choose goleveldb as default to store data if you not set.
|
|
|
|
Choosing a store database to use is very simple, you have two ways:
|
|
|
|
+ Set in server config file
|
|
|
|
db_name = "leveldb"
|
|
|
|
+ Set in command flag
|
|
|
|
ledis-server -config=/etc/ledis.conf -db_name=leveldb
|
|
|
|
Flag command set will overwrite config set.
|
|
|
|
**Caveat**
|
|
|
|
You must known that changing store database runtime is very dangerous, LedisDB will not guarantee the data validation if you do it.
|
|
|
|
## Configuration
|
|
|
|
LedisDB uses [toml](https://github.com/toml-lang/toml) as the preferred configuration format, also supports ```json``` because of some history reasons. The basic configuration ```./etc/ledis.conf``` in LedisDB source may help you.
|
|
|
|
If you don't use a configuration, LedisDB will use the default for you.
|
|
|
|
## Server Example
|
|
|
|
//set run environment if not
|
|
source dev.sh
|
|
|
|
ledis-server -config=/etc/ledis.conf
|
|
|
|
//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"
|
|
|
|
//use curl
|
|
curl http://127.0.0.1:11181/SET/hello/world
|
|
→ {"SET":[true,"OK"]}
|
|
|
|
curl http://127.0.0.1:11181/0/GET/hello?type=json
|
|
→ {"GET":"world"}
|
|
|
|
|
|
## 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](https://github.com/siddontang/ledisdb/wiki/Benchmark) for more.
|
|
|
|
## Todo
|
|
|
|
See [Issues todo](https://github.com/siddontang/ledisdb/issues?labels=todo&page=1&state=open)
|
|
|
|
|
|
## Links
|
|
|
|
+ [Official Website](http://ledisdb.com)
|
|
+ [Author's Chinese Blog](http://blog.csdn.net/siddontang/article/category/2264003)
|
|
+ [GoDoc](https://godoc.org/github.com/siddontang/ledisdb)
|
|
+ [Server Commands](https://github.com/siddontang/ledisdb/wiki/Commands)
|
|
|
|
|
|
## 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
|