Explorer is a key-value storage system with client and server.
Explorer use B+ tree as storage engine. Client and server communicate using the TCP protocol.

make

First, run the server program :
./exp-srv

Then, run the client program :
./exp-cli

Insert a key-value :
> set  zx  1

Search a key : 
> get  zx

Update a key :
> update  zx  2

Delete a key :
> del  zx

Display the current status of the storage system :
> stat

Look for help :
> h

Quit from client :
> q

By default, the key type is string and value type is int.
All key-values store in one file named test.db, you can change the file name or file position in source file test/kvstore/exp-server/exp-server.cc.