Temporary removed support for influxdb for InitialResources

plugin/pkg/admission/initialresources/influxdb.go

@@ -21,7 +21,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/golang/glog"
 	influxdb "github.com/influxdb/influxdb/client"
 	"k8s.io/kubernetes/pkg/api"
 )
@@ -35,81 +34,15 @@ const (
 )
 
 // TODO(piosz): rewrite this once we will migrate into InfluxDB v0.9.
-type influxdbSource struct {
-	conf *influxdb.ClientConfig
-}
+type influxdbSource struct{}
 
 func newInfluxdbSource(host, user, password, db string) (dataSource, error) {
-	conf := &influxdb.ClientConfig{
-		Host:     host,
-		Username: user,
-		Password: password,
-		Database: db,
-	}
-	source := &influxdbSource{
-		conf: conf,
-	}
-	go source.ensureAutoscalingSeriesExist()
-	return source, nil
-}
-
-func ensureSeriesExists(conn *influxdb.Client, existingQueries *influxdb.Series, seriesName, contQuery string) error {
-	queryExists := false
-	for _, p := range existingQueries.GetPoints() {
-		id := p[1].(float64)
-		query := p[2].(string)
-		if strings.Contains(query, "into "+seriesName) {
-			if query != contQuery {
-				if _, err := conn.Query(fmt.Sprintf("drop continuous query %v", id), influxdb.Second); err != nil {
-					return err
-				}
-			} else {
-				queryExists = true
-			}
-		}
-	}
-	if !queryExists {
-		if _, err := conn.Query("drop series "+seriesName, influxdb.Second); err != nil {
-			return err
-		}
-		if _, err := conn.Query(contQuery, influxdb.Second); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func (s *influxdbSource) ensureAutoscalingSeriesExist() {
-	for {
-		time.Sleep(30 * time.Second)
-		client, err := influxdb.NewClient(s.conf)
-		if err != nil {
-			glog.Errorf("Error while trying to create InfluxDB client: %v", err)
-			continue
-		}
-		series, err := client.Query("list continuous queries", influxdb.Second)
-		if err != nil {
-			glog.Errorf("Error while trying to list continuous queries: %v", err)
-			continue
-		}
-		if err := ensureSeriesExists(client, series[0], cpuSeriesName, cpuContinuousQuery); err != nil {
-			glog.Errorf("Error while trying to create create autoscaling series: %v", err)
-			continue
-		}
-		if err := ensureSeriesExists(client, series[0], memSeriesName, memContinuousQuery); err != nil {
-			glog.Errorf("Error while trying to create create autoscaling series: %v", err)
-			continue
-		}
-		break
-	}
+	return &influxdbSource{}, nil
 }
 
-func (s *influxdbSource) query(query string, precision ...influxdb.TimePrecision) ([]*influxdb.Series, error) {
-	client, err := influxdb.NewClient(s.conf)
-	if err != nil {
-		return nil, err
-	}
-	return client.Query(query, precision...)
+func (s *influxdbSource) query(query string) ([]*influxdb.Response, error) {
+	// TODO(piosz): add support again
+	return nil, fmt.Errorf("temporary not supported; see #18826 for more details")
 }
 
 func (s *influxdbSource) GetUsagePercentile(kind api.ResourceName, perc int64, image, namespace string, exactMatch bool, start, end time.Time) (int64, int64, error) {
@@ -133,26 +66,8 @@ func (s *influxdbSource) GetUsagePercentile(kind api.ResourceName, perc int64, i
 	}
 
 	query := fmt.Sprintf("select percentile(value, %v), count(pod_id) from %v where container_base_image%v%v and time > '%v' and time < '%v'", perc, series, imgPattern, namespaceCond, start.UTC().Format(timeFormat), end.UTC().Format(timeFormat))
-	var res []*influxdb.Series
-	var err error
-	if res, err = s.query(query, influxdb.Second); err != nil {
+	if _, err := s.query(query); err != nil {
 		return 0, 0, fmt.Errorf("Error while trying to query InfluxDB: %v", err)
 	}
-
-	// TODO(pszczesniak): fix issue with dropped data base
-	if len(res) == 0 {
-		return 0, 0, fmt.Errorf("Missing data in series %v in InfluxDB", series)
-	}
-	points := res[0].GetPoints()
-	if len(points) == 0 {
-		return 0, 0, fmt.Errorf("Missing data in series %v in InfluxDB", series)
-	}
-	p := points[0]
-	usage := p[1].(float64)
-	count := p[2].(float64)
-	if kind == api.ResourceCPU {
-		// convert from ns to millicores
-		usage = usage / 1000000
-	}
-	return int64(usage), int64(count), nil
+	return 0, 0, nil
 }