OpenAtomFoundation / pikiwidb

a high-performance, large-capacity, multi-tenant, data-persistent, strong data consistency based on raft, Redis-compatible elastic KV data storage system based on RocksDB

PikiwiDB

中文

A C++11 implementation of Redis Server, use Leveldb for persist storage.(not including cluster yet)

Requirements

• C++11
• Linux or OS X

Support module for write your own extensions

PikiwiDB supports module now, still in progress, much work to do. I added three commands(ldel, skeys, hgets) for demonstration.

Persistence: Not limited to memory

Leveldb can be configured as backend for PikiwiDB.

Fully compatible with redis

You can test PikiwiDB with redis-cli, redis-benchmark, or use redis as master with PikiwiDB as slave or conversely, it also can work with redis sentinel.

High Performance

• PikiwiDB is approximately 20-25% faster than redis if run benchmark with pipeline requests(set -P = 50 or higher).
• Average 80K requests per seconds for write, and 90K requests per seconds for read.
• Before run test, please ensure that std::list::size() is O(1), obey the C++11 standards.

Run this command, compare with redis use pipeline commands, try it.

./redis-benchmark -q -n 1000000 -P 50 -c 50

Command List

show all supported commands list

• cmdlist

key commands

• type exists del expire pexpire expireat pexpireat ttl pttl persist move keys randomkey rename renamenx scan sort

server commands

• select dbsize bgsave save lastsave flushdb flushall client debug shutdown bgrewriteaof ping echo info monitor auth

string commands

• set get getrange setrange getset append bitcount bitop getbit setbit incr incrby incrbyfloat decr decrby mget mset msetnx setnx setex psetex strlen

list commands

• lpush rpush lpushx rpushx lpop rpop lindex llen lset ltrim lrange linsert lrem rpoplpush blpop brpop brpoplpush

hash commands

• hget hmget hgetall hset hsetnx hmset hlen hexists hkeys hvals hdel hincrby hincrbyfloat hscan hstrlen

set commands

• sadd scard srem sismember smembers sdiff sdiffstore sinter sinterstore sunion sunionstore smove spop srandmember sscan

sorted set commands

• zadd zcard zrank zrevrank zrem zincrby zscore zrange zrevrange zrangebyscore zrevrangebyscore zremrangebyrank zremrangebyscore

pubsub commands

• subscribe unsubscribe publish psubscribe punsubscribe pubsub

multi commands

• watch unwatch multi exec discard

replication commands

• sync slaveof

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