forked from mirror/ledisdb
192 lines
5.1 KiB
Markdown
192 lines
5.1 KiB
Markdown
# LedisDB
|
|
|
|
[](https://travis-ci.org/ledisdb/ledisdb)
|
|
|
|
Ledisdb is a high-performance NoSQL database, similar to Redis, written in [Go](http://golang.org/). It supports many data structures including kv, list, hash, zset, set.
|
|
|
|
LedisDB now supports multiple different databases as backends.
|
|
|
|
### **You must run `ledis-upgrade-ttl` before using LedisDB version 0.4, I fixed a very serious bug for key expiration and TTL.**
|
|
|
|
## Features
|
|
|
|
+ Rich data structure: KV, List, Hash, ZSet, Set.
|
|
+ Data storage is not limited by RAM.
|
|
+ Various backends supported: LevelDB, goleveldb, RocksDB, RAM.
|
|
+ Supports Lua scripting.
|
|
+ Supports expiration and TTL.
|
|
+ Can be managed via redis-cli.
|
|
+ Easy to embed in your own Go application.
|
|
+ HTTP API support, JSON/BSON/msgpack output.
|
|
+ Replication to guarantee data safety.
|
|
+ Supplies tools to load, dump, and repair database.
|
|
+ Supports cluster, use [xcodis](https://github.com/siddontang/xcodis)
|
|
+ Authentication (though, not via http)
|
|
|
|
## Build from source
|
|
|
|
Create a workspace and checkout ledisdb source
|
|
|
|
git clone git@github.com:ledisdb/ledisdb.git
|
|
cd ledisdb
|
|
|
|
#set build and run environment
|
|
source dev.sh
|
|
|
|
make
|
|
make test
|
|
|
|
Then you will find all the binary build on `./bin` directory.
|
|
|
|
## LevelDB support
|
|
|
|
+ Install leveldb and snappy.
|
|
|
|
LedisDB supplies a simple script to install leveldb and snappy:
|
|
|
|
sudo sh tools/build_leveldb.sh
|
|
|
|
It will install leveldb at /usr/local/leveldb and snappy at /usr/local/snappy by default.
|
|
|
|
LedisDB uses the modified LevelDB for better performance. [Details.](https://github.com/ledisdb/ledisdb/wiki/leveldb-source-modification)
|
|
|
|
You can easily use other LevelDB versions (like Hyper LevelDB or Basho LevelDB) instead, as long as the header files are in `include/leveldb`, not `include/hyperleveldb` or any other location.
|
|
|
|
+ Set `LEVELDB_DIR` and `SNAPPY_DIR` to the actual install path in dev.sh.
|
|
+ `make clean && make`
|
|
|
|
## RocksDB support
|
|
|
|
+ [Install rocksdb(5.1+)](https://github.com/facebook/rocksdb/blob/master/INSTALL.md)(`make shared_lib`) and snappy first.
|
|
|
|
LedisDB has not yet supplied a simple script to install.
|
|
|
|
+ Set `ROCKSDB_DIR` and `SNAPPY_DIR` to the actual install path in `dev.sh`.
|
|
+ `make clean && make`
|
|
|
|
|
|
If the RocksDB API changes, LedisDB may not build successfully. LedisDB currently supports RocksDB version 5.1 or later.
|
|
|
|
|
|
## Choose store database
|
|
|
|
LedisDB now supports goleveldb, leveldb, rocksdb, and RAM. It will use goleveldb by default.
|
|
|
|
Choosing a store database to use is very simple.
|
|
|
|
+ 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 setting.
|
|
|
|
## Lua support
|
|
|
|
Lua is supported using [gopher-lua](https://github.com/yuin/gopher-lua), a Lua VM, completely written in Go.
|
|
|
|
## Configuration
|
|
|
|
LedisDB uses [toml](https://github.com/toml-lang/toml) as the configuration format. 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
|
|
|
|
./bin/ledis-server -config=/etc/ledis.conf
|
|
|
|
//another shell
|
|
./bin/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 (
|
|
lediscfg "github.com/ledisdb/ledisdb/config"
|
|
"github.com/ledisdb/ledisdb/ledis"
|
|
)
|
|
|
|
# Use Ledis's default config
|
|
cfg := lediscfg.NewConfigDefault()
|
|
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
|
|
|
|
## Cluster support
|
|
|
|
LedisDB uses a proxy named [xcodis](https://github.com/siddontang/xcodis) to support cluster.
|
|
|
|
## Benchmark
|
|
|
|
See [benchmark](https://github.com/ledisdb/ledisdb/wiki/Benchmark) for more.
|
|
|
|
## Todo
|
|
|
|
See [Issues todo](https://github.com/ledisdb/ledisdb/issues?labels=todo&page=1&state=open)
|
|
|
|
## Client
|
|
|
|
See [Clients](https://github.com/ledisdb/ledisdb/wiki/Clients) to find or contribute LedisDB client.
|
|
|
|
## Links
|
|
|
|
+ [Official Website](https://ledisdb.io)
|
|
+ [GoDoc](https://godoc.org/github.com/ledisdb/ledisdb)
|
|
+ [Server Commands](https://github.com/ledisdb/ledisdb/wiki/Commands)
|
|
|
|
## Caveat
|
|
|
|
+ Changing the backend database at runtime is very dangerous. Data validation is not guaranteed if this is done.
|
|
|
|
## Requirement
|
|
|
|
+ Go version >= 1.6
|
|
|
|
## Related Repos
|
|
|
|
+ [pika](https://github.com/Qihoo360/pika)
|
|
|
|
|
|
## Donate
|
|
|
|
If you like the project and want to buy me a cola, you can through:
|
|
|
|
|PayPal|微信|
|
|
|------|---|
|
|
|[](https://paypal.me/siddontang)|[|
|
|
|
|
## Feedback
|
|
|
|
+ Gmail: siddontang@gmail.com
|