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redis.go
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/
redis.go
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package redisc
import (
"time"
"github.com/garyburd/redigo/redis"
"github.com/toolkits/pkg/logger"
"github.com/didi/nightingale/src/modules/monapi/config"
"github.com/didi/nightingale/src/toolkits/stats"
)
var RedisConnPool *redis.Pool
func InitRedis() {
cfg := config.Get()
addr := cfg.Redis.Addr
pass := cfg.Redis.Pass
db := cfg.Redis.DB
maxIdle := cfg.Redis.Idle
idleTimeout := 240 * time.Second
connTimeout := time.Duration(cfg.Redis.Timeout.Conn) * time.Millisecond
readTimeout := time.Duration(cfg.Redis.Timeout.Read) * time.Millisecond
writeTimeout := time.Duration(cfg.Redis.Timeout.Write) * time.Millisecond
RedisConnPool = &redis.Pool{
MaxIdle: maxIdle,
IdleTimeout: idleTimeout,
Dial: func() (redis.Conn, error) {
c, err := redis.Dial("tcp", addr, redis.DialConnectTimeout(connTimeout), redis.DialReadTimeout(readTimeout), redis.DialWriteTimeout(writeTimeout))
if err != nil {
logger.Errorf("conn redis err:%v", err)
stats.Counter.Set("redis.conn.failed", 1)
return nil, err
}
if pass != "" {
if _, err := c.Do("AUTH", pass); err != nil {
c.Close()
logger.Error("redis auth fail, pass: ", pass)
stats.Counter.Set("redis.conn.failed", 1)
return nil, err
}
}
if db != 0 {
if _, err := c.Do("SELECT", db); err != nil {
c.Close()
logger.Error("redis select db fail, db: ", db)
stats.Counter.Set("redis.select.failed", 1)
return nil, err
}
}
return c, err
},
TestOnBorrow: PingRedis,
}
}
func PingRedis(c redis.Conn, t time.Time) error {
_, err := c.Do("ping")
if err != nil {
logger.Error("ping redis fail: ", err)
}
return err
}
func CloseRedis() {
logger.Info("closing redis...")
RedisConnPool.Close()
}