return a pool of 50 redis connection

redisPool.go

package main

import "github.com/garyburd/redigo/redis"

func GetRedisConnection() (*redis.Pool, error) {
	connPool := redis.NewPool(func() (redis.Conn, error) {
		conn, err := redis.Dial("tcp", "redis.host:6379")
		if err != nil {
			return nil, err
		}
		return conn, err
	}, 50)

	return connPool, nil
}