内容简介:KV store
dkv
A Log-Structured Hash Table for Fast Key/Value Data
- low latency per item read or written
- high throughput, especially when writing an incoming stream of random items
- ability to handle datasets much larger than RAM w/o degradation
- crash friendliness, both in terms of fast recovery and not losing data
- ease of backup and restore
- a relatively simple, understandable (and thus supportable) code structure and data format • predictable behavior under heavy access load or large volume
Install
By default, the golang environment has been installed.
first: git clone https://github.com/xincao9/dkv.git cd ./dkv sudo make install Execute: dkv -d=true -conf=config-prod.yaml Bin directory: cd /usr/local/dkv/bin/ Configuration directory: cd /usr/local/dkv/conf/ Data directory: cd /usr/local/dkv/data/ Logger directory: cd /usr/local/dkv/log/ second: docker pull xincao9/dkv docker run -d -p 9090:9090 -p 6380:6380 dkv:latest
Configuration file
config.yaml Placed in the current working directory or /etc/dkv/ or $HOME/.dkv or /usr/local/dkv
data: dir: /usr/local/dkv/data invalidIndex: false cache: open: true size: 1073741824 compress: open: false server: mode: release port: 9090 sequence: true redis: port: 6380 logger: level: info dir: /usr/local/dkv/log ms: role: 0
HTTP interface
KV store
Add or modify curl -X PUT -H 'content-type:application/json' 'http://localhost:9090/kv' -d '{"k":"name", "v":"xincao9"}' Search curl -X GET 'http://localhost:9090/kv/name' delete curl -X DELETE 'http://localhost:9090/kv/name'
OSS (Object Storage Service)
Upload file, file max size 64M curl -X POST 'http://localhost:9090/oss' -F "file[]=@config.yaml" -H 'content-type:multipart/form-data' Fetch file curl -X GET 'http://localhost:9090/oss/116a71ebd837470652f063028127c5cd'
Redis command
- SET key value
- GET key
- DEL key
- PING
go get github.com/go-redis/redis
client := redis.NewClient(&redis.Options{ Addr: "localhost:6380", Password: "", // no password set DB: 0, // use default DB }) err := client.Set("name", "xincao9", 0).Err() if err != nil { log.Println(err) } val, err := client.Get("name").Result() if err != nil { log.Println(err) } log.Println(val)
GO SDK
go get github.com/xincao9/dkv/client
c, err := client.New("localhost:9090", time.Second) if err != nil { log.Fatalln(err) } r, err := c.Put("name", "xincao9") if err == nil { log.Println(r) } r, err = c.Get("name") if err == nil { log.Println(r) }
Management interface
View runtime configuration curl -X GET 'http://localhost:9090/config' Prometheus indicator curl -X GET 'http://localhost:9090/metrics' Pprof interface curl -X GET 'http://localhost:9090/debug/pprof'
Grafana dashboard resources
Pressure test
Execute benchmark/start.sh
Reference
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