rekkles

rekkles is a high performance no-sql database build on BadgerDB with redis protocol support. It meant to provide a key-value store alternative to redis.

• Pure golang implementation, no c/c++ dependency
• Compatible with redis protocol, Redis client are supported
• Persistent all data to the disk
• Better transaction support, ttl support

Install

go get github.com/gushitong/rekkles

• rekkles server start options:

rekkles -h
Usage of rekkles:
  -a string
    	auth string
  -b string
    	listen address (default ":6380")
  -d string
    	working dir (default "/tmp/rekkles")
  -v string
    	value log dir (default "/tmp/rekkles")
  -s bool	
        sync all writes to disk. Setting this to false would achieve better performance, but may cause data to be lost. (default true)

Example

• start rekkles server:

$ rekkles -d /tmp/araydb -v /tmp/araydb -b :6380
2018/09/29 12:05:53 started server at :6380    

• connect rekkles with redis-cli:

$ redis-cli -p 6380
127.0.0.1:6380> SET k 1
OK
127.0.0.1:6380> GET k
"1"
127.0.0.1:6380> HSET hash k v
(integer) 1
127.0.0.1:6380> HGET hash k
"v"
127.0.0.1:6380> PING
PONG

Redis Command Support

Strings	Lists	Hashes	Sets	Sorted Sets
append	lindex	hdel	sadd	zadd
decr	llen	hexists	scard	zcard
decrby	lpop	hget	sismember	zcount
get	lpush	hgetall	smembers	zincrby
getbit	lpushx	hincrby	spop	zpopmax
getrange	lrange	hincrbyfloat		zpopmin
getset	lset	hkeys		zrange
incr		hlen		zrangebyscore
incrby		hmget		zrank
incrbyfloat		hmset		zrevrange
mget		hscan		zrevrangebyscore
mset		hset		zrevrank
msetnx		hsetnx		zscore
set		hstrlen
setbit		hvals
setex
setnx
setrange
strlen

Benchmark

This benchmark running on my local mac, rekkles should have better performance on SSD.

• redis:

$ redis-benchmark -p 6379 -c 50 -n 10000 -q 
PING_INLINE: 56497.18 requests per second
PING_BULK: 56818.18 requests per second
SET: 58823.53 requests per second
GET: 57142.86 requests per second
INCR: 59171.60 requests per second
LPUSH: 59523.81 requests per second
RPUSH: 57142.86 requests per second
LPOP: 59880.24 requests per second
RPOP: 52631.58 requests per second
SADD: 61728.39 requests per second
SPOP: 56497.18 requests per second
LPUSH (needed to benchmark LRANGE): 59880.24 requests per second
LRANGE_100 (first 100 elements): 19047.62 requests per second
LRANGE_300 (first 300 elements): 9074.41 requests per second
LRANGE_500 (first 450 elements): 6501.95 requests per second
LRANGE_600 (first 600 elements): 4933.40 requests per second
MSET (10 keys): 45871.56 requests per second

• rekkles:

$ redis-benchmark -p 6380 -c 50 -n 10000 -q 
PING_INLINE: 45662.10 requests per second
PING_BULK: 48543.69 requests per second
SET: 26881.72 requests per second
GET: 32051.28 requests per second
INCR: 30769.23 requests per second
LPUSH: 24937.66 requests per second
RPUSH: 38461.54 requests per second
LPOP: 24691.36 requests per second
RPOP: 39215.69 requests per second
SADD: 36496.35 requests per second
SPOP: 30120.48 requests per second
LPUSH (needed to benchmark LRANGE): 26954.18 requests per second
LRANGE_100 (first 100 elements): 8960.57 requests per second
LRANGE_300 (first 300 elements): 8045.05 requests per second
LRANGE_500 (first 450 elements): 8312.55 requests per second
LRANGE_600 (first 600 elements): 9049.77 requests per second
MSET (10 keys): 33670.04 requests per second