//返回值：sourceipport,desipport,slots,是否有效 //[email protected]:6666|10232-11123->10.13.128.221:6667 func checkCommandValid(c string) (sipport string, des string, slots []string, flag bool) { cdetail := strings.Split(c, "@") sd := strings.Split(cdetail[1], "->") if len(sd) != 2 { email.MSendMail("[sys/redis.go:checkCommandValid] reveive command string is not valid", []byte(c)) return "", "", nil, false } source := sd[0] des = sd[1] if strings.Count(source, "|") < 1 { email.MSendMail("[sys/redis.go:checkCommandValid] reveive command string is not valid", []byte(c)) } temp := strings.Split(source, "|") sipport = temp[0] slots = temp[1:] for _, v := range slots { ss := strings.Split(v, "-") if len(ss) > 2 { return "", "", nil, false } else if len(ss) == 2 { i, e := strconv.Atoi(ss[0]) if e != nil { return "", "", nil, false } ii, e := strconv.Atoi(ss[1]) if e != nil { return "", "", nil, false } if i >= ii { return "", "", nil, false } } } return sipport, des, slots, true }
//ExecRedisCmd 执行redis command
func (r *Redises) ExecRedisCmd(ipport, cmd string, arg ...interface{}) []string {
defer func() {
if err := recover(); err != nil {
log.Println("[sys/redis.go:ExecRedisCmd] error", err)
es := fmt.Sprint(err)
email.MSendMail("[sys/redis.go:ExecRedisCmd] error", []byte(es))
}
}()
rc := r.getPooledRedisClient(ipport)
defer rc.Close()
reply, err := rc.Do(cmd, arg...)
if err != nil {
es := fmt.Sprint(cmd, arg, " run error!:>>>", err)
return []string{es}
}
var result []string
switch t := reply.(type) {
default:
log.Printf("%s 命令 %s, redis 返回输出类型是:%T", cmd, arg, t)
result = []string{}
case []byte:
result = []string{string(reply.([]byte))}
case string:
result = []string{reply.(string)}
case []interface{}:
is := reply.([]interface{})
for _, v := range is {
result = append(result, string(v.([]byte)))
}
}
return result
}
//DealTransSlot 迁移指令处理函数
func (r *Redises) DealTransSlot(sipport string, dip string, slots []string) {
defer func() {
if err := recover(); err != nil {
log.Println("[sys/redis.go:transSlot] error", err)
es := fmt.Sprint(err)
email.MSendMail("[sys/redis.go:transSlot] error", []byte(es))
}
}()
r.emailContent = time.Now().String() + "\n"
rs := r.ExecRedisCmd(sipport, "cluster", "nodes")
wm := wrapRedisNode(rs[0])
//v : [email protected]:6666|10232-11123->10.13.128.221:6667
r.emailContent = fmt.Sprint(r.emailContent, sipport, " to destination ip:", dip, " slots:", slots, " \nGet cluster nodes info:\n", rs, "\n\n>>>>>>>>>>>>>>>>>>begin process>>>>>>>>>>>>>>>\n\n")
r.processNodesInfo(sipport, dip, wm, slots...)
r.emailContent = fmt.Sprint(r.emailContent, " \n\n done!!!!!!!!!!!!!!!!!!!!!!!!!!")
email.MSendMail("[sys/redis.go:DealTransSlot] transinfo", []byte(r.emailContent))
//fmt.Printf("%s\n", r.emailContent)
}
//DealCommandChan 处理socket 获取的 转移slot指令
func (r *Redises) DealCommandChan() {
go func() {
for v := range CommandChan {
fmt.Printf("receive command chan string --->%s\n", v)
switch v[0] {
//v : [email protected]:6666|10232-11123->10.13.128.221:6667
case 'T':
sipport, desipport, slots, flag := checkCommandValid(v)
if flag {
r.DealTransSlot(sipport, desipport, slots)
} else {
email.MSendMail("[sys/redis.go:checkCommandValid] reveive command string is not valid", []byte(v))
}
}
}
}()
}
//RedisAliveCheck redis 实例存货监控
func (r *Redises) RedisAliveCheck(conf *config.Config, errChan chan string) {
defer func() {
if err := recover(); err != nil {
log.Println("[sys/redis.go:RedisAliveCheck] recover error::", err)
}
}()
var result string
for _, v := range conf.Redises {
ipport := v.Ip + ":" + strconv.Itoa(v.Port)
rs := r.ExecRedisCmd(ipport, "PING")
if len(rs) != 1 || rs[0] != "PONG" || rs[0] == "" {
result = result + "," + ipport
}
}
if result != "" {
email.MSendMail("redis 不存活报警", []byte(result))
errChan <- string(result)
}
}