func (d *dataAccess) GetTempConfig(hash string) (string, error) {
defer collect.StartTimer("redis", opentsdb.TagSet{"op": "GetTempConfig"})()
conn := d.GetConnection()
defer conn.Close()
key := "tempConfig:" + hash
dat, err := redis.String(conn.Do("GET", key))
if err != nil {
return "", err
}
_, err = conn.Do("EXPIRE", key, configLifetime)
return dat, err
}
func ExampleString() {
c, err := dial()
if err != nil {
panic(err)
}
defer c.Close()
c.Do("SET", "hello", "world")
s, err := redis.String(c.Do("GET", "hello"))
fmt.Printf("%#v\n", s)
// Output:
// "world"
}
// This example implements ZPOP as described at
// http://redis.io/topics/transactions using WATCH/MULTI/EXEC and scripting.
func Example_zpop() {
c, err := dial()
if err != nil {
fmt.Println(err)
return
}
defer c.Close()
// Add test data using a pipeline.
for i, member := range []string{"red", "blue", "green"} {
c.Send("ZADD", "zset", i, member)
}
if _, err := c.Do(""); err != nil {
fmt.Println(err)
return
}
// Pop using WATCH/MULTI/EXEC
v, err := zpop(c, "zset")
if err != nil {
fmt.Println(err)
return
}
fmt.Println(v)
// Pop using a script.
v, err = redis.String(zpopScript.Do(c, "zset"))
if err != nil {
fmt.Println(err)
return
}
fmt.Println(v)
// Output:
// red
// blue
}
func (d *dataAccess) GetMetricTagSets(metric string, tags opentsdb.TagSet) (map[string]int64, error) {
defer collect.StartTimer("redis", opentsdb.TagSet{"op": "GetMetricTagSets"})()
conn := d.GetConnection()
defer conn.Close()
var cursor = "0"
result := map[string]int64{}
for {
vals, err := redis.Values(conn.Do(d.HSCAN(), searchMetricTagSetKey(metric), cursor))
if err != nil {
return nil, slog.Wrap(err)
}
cursor, err = redis.String(vals[0], nil)
if err != nil {
return nil, slog.Wrap(err)
}
mtss, err := stringInt64Map(vals[1], nil)
if err != nil {
return nil, slog.Wrap(err)
}
for mts, t := range mtss {
ts, err := opentsdb.ParseTags(mts)
if err != nil {
return nil, slog.Wrap(err)
}
if ts.Subset(tags) {
result[mts] = t
}
}
if cursor == "" || cursor == "0" {
break
}
}
return result, nil
}