這是一個建立於 的文章，其中的資訊可能已經有所發展或是發生改變。傳送門 https://github.com/gitstliu/go-redis-cluster### If you like, Please Start it# go-redis-clustergo-redis-cluster is a golang implementation of redis client based on Gary Burd's[Redigo](https://github.com/garyburd/redigo). It caches slot info at local and updates it automatically when cluster change. The client manages a connection pool for each node, uses goroutine to execute as concurrently as possible, which leads to its high efficiency and low lantency.**Supported**:* Most commands of keys, strings, lists, sets, sorted sets, hashes.* MGET/MSET* Pipelining**NOT supported**:* Cluster commands* Pub/Sub* Transaction* Lua script## InstallationInstall go-redis-cluster with go tool:``` go get github.com/gitstliu/go-redis-cluster``` ## UsageTo use redis cluster, you need import the package and create a new cluster clientwith an options:```goimport "github.com/gitstliu/go-redis-cluster"cluster, err := redis.NewCluster( &redis.Options{StartNodes: []string{"127.0.0.1:7000", "127.0.0.1:7001", "127.0.0.1:7002"},ConnTimeout: 50 * time.Millisecond,ReadTimeout: 50 * time.Millisecond,WriteTimeout: 50 * time.Millisecond,KeepAlive: 16,AliveTime: 60 * time.Second, })```### Basicgo-redis-cluster has compatible interface to [Redigo](https://github.com/garyburd/redigo), which uses a print-like API for all redis commands. When executing a command, it need a key to hash to a slot, then find the corresponding redis node. Do method will choose firstargument in args as the key, so commands which are independent from keys are not supported,such as SYNC, BGSAVE, RANDOMKEY, etc. **RESTRICTION**: Please be sure the first argument in args is key.See full redis commands: http://www.redis.io/commands```gocluster.Do("SET", "foo", "bar")cluster.Do("INCR", "mycount", 1)cluster.Do("LPUSH", "mylist", "foo", "bar")cluster.Do("HMSET", "myhash", "f1", "foo", "f2", "bar")```You can use help functions to convert reply to int, float, string, etc.```goreply, err := Int(cluster.Do("INCR", "mycount", 1))reply, err := String(cluster.Do("GET", "foo"))reply, err := Strings(cluster.Do("LRANGE", "mylist", 0, -1))reply, err := StringMap(cluster.Do("HGETALL", "myhash"))```Also, you can use Values and Scan to convert replies to multiple values with different types.```go_, err := cluster.Do("MSET", "key1", "foo", "key2", 1024, "key3", 3.14, "key4", "false")reply, err := Values(cluster.Do("MGET", "key1", "key2", "key3", "key4"))var val1 stringvar val2 intreply, err = Scan(reply, &val1, &val2)var val3 float64reply, err = Scan(reply, &val3)var val4 boolreply, err = Scan(reply, &val4)```### Multi-keysMutiple keys command - MGET/MSET are supported using result aggregation.Processing steps are as follows:- First, split the keys into multiple nodes according to their hash slot.- Then, start a goroutine for each node to excute MGET/MSET commands and wait them finish.- Last, collect and rerange all replies, return back to caller.**NOTE**: Since the keys may spread across mutiple node, there's no atomicity gurantee that all keys will be set at once. It's possible that some keys are set while others are not.### PipeliningPipelining is supported through the Batch interface. You can put multiple commands into a batch as long as it is supported by Do method. RunBatch will split these command to distinctnodes and start a goroutine for each node. Commands hash to same nodes will be merged and sent using pipelining. After all commands done, it rearrange results as MGET/MSET do. Result is a slice of each command's reply, you can use Scan to convert them to other types.```gobatch := cluster.NewBatch()err = batch.Put("LPUSH", "country_list", "France")err = batch.Put("LPUSH", "country_list", "Italy")err = batch.Put("LPUSH", "country_list", "Germany")err = batch.Put("INCRBY", "countries", 3)err = batch.Put("LRANGE", "country_list", 0, -1)reply, err = cluster.RunBatch(batch)var resp intfor i := 0; i < 4; i++ { reply, err = redis.Scan(reply, &resp) }countries, err := Strings(reply[0], nil)```## ContactBug reports and feature requests are welcome.If you have any question, please email me gitstliu@163.com.## Licensego-redis-cluster is available under the [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0.html).421 次點擊
