SHAREdis

SHAREdis hopes to encapsulate and expand the key-value interface of TiKV on top of the advantages of TiKV, and use the Redis client protocol to implement Redis data types and interface operations, while shielding the complex cluster management inside the distributed system, Data synchronization operation, thereby providing a distributed SSD cache computing layer service that can replace/supplement Redis.

Getting Started

Dependency

• [Go1.13(for compiling)]
• [Python2(for testing)]

Installing

1. compile

cd src
make

2. run server

cd bin
./sharedis --conf ../conf/config.toml

Run tests

cd src/test
python kv.py

Architecture diagram:

Multiple data structure design:

KV type

TiKV key:

length	1Byte	segment_size	4bit	12bit	raw_key_size
content	segment_size	segment	type	raw_key_size	raw_key

TiKV value:

length	raw_value_len
content	raw_value

SET type

TiKV key:

length	1Byte	segment_size	4bit	12bit	name_size	all_key_size - before
content	segment_size	segment	type	name_size	set_name	member

TiKV value:

length
content

HASH type

TiKV key:

length	1Byte	segment_size	4bit	12bit	name_size	all_key_size - before
content	segment_size	segment	type	name_size	hash_name	field

TiKV value:

length	field_value_len
content	field_value

ZSET type

key_score(get by score)

TiKV key:

length	1Byte	segment_size	4bit	12bit	name_size	8Byte	all_key_size - before
content	segment_size	segment	type	name_size	zset_name	score	member

TiKV value:

length
content

key_idx(get by key)

TiKV key:

length	1Byte	segment_size	4bit	12bit	name_size	all_key_size - before
content	segment_size	segment	type	name_size	zset_name	member

TiKV value:

length	8Byte
content	score

Current list of supported commands:

Currently, sharedis interacts with clients using the thrift-based rpc protocol, which will be replaced with the Redis protocol in the future

Redis Command Groups	Redis Commands
string	set
string	get
string	mset
string	mget
string	ttl
string	del
set	sadd
set	srem
set	smembers
set	scard
set	sismember
hash	hset
hash	hget
hash	hkeys
hash	hdel
hash	hmset
hash	hmget
zset	zadd
zset	zscore
zset	zrem
zset	zrange
zset	zrangebyscore
zset	zcard
zset	zscan

Contributing

Please read CONTRIBUTING for details on our code of conduct, and the process for submitting pull requests to us.

Authors

• vortex0305 - Initial work
• daimashusheng - Initial work

See also the list of contributors who participated in this project.

License

This project is licensed under the MIT License - see the LICENSE file for details