LedisDB 0.4版发布

jieforest

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.

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

jieforest

RocksDB support

Install rocksdb(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.

1. make clean && make

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If the RocksDB API changes, LedisDB may not build successfully. LedisDB currently supports RocksDB version 3.5 or later.

jieforest

Choose store database

LedisDB now supports goleveldb, lmdb, leveldb, rocksdb, boltdb, and RAM. It will use goleveldb by default.

Choosing a store database to use is very simple.

Set in server config file

1. db_name = "leveldb"

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Set in command flag

1. ledis-server -config=/etc/ledis.conf -db_name=leveldb

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Flag command set will overwrite config setting.

jieforest

Lua support

Compile and install Lua

Set LUA_DIR to the actual path in dev.sh

1. make clean && make

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Configuration

LedisDB uses 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.

jieforest

Server Example

1. //set run environment if not
   
2. source dev.sh
   
3. 
   
4. ledis-server -config=/etc/ledis.conf
   
5. 
   
6. //another shell
   
7. ledis-cli -p 6380
   
8. 
   
9. ledis 127.0.0.1:6380> set a 1
   
10. OK
    
11. ledis 127.0.0.1:6380> get a
    
12. "1"
    
13. 
    
14. //use curl
    
15. curl http://127.0.0.1:11181/SET/hello/world
    
16. → {"SET":[true,"OK"]}
    
17. 
    
18. curl http://127.0.0.1:11181/0/GET/hello?type=json
    
19. → {"GET":"world"}

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