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stackdriver: adds support for primary aggregations

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WIP: Hardcoded values for the aligner and alignment period. Need
to set the aligment period to the closest min interval and
research the aligner more.
This commit is contained in:
Daniel Lee
2018-09-14 09:38:16 +02:00
parent 0b5783563e
commit f4fe26c659
6 changed files with 146 additions and 26 deletions
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pkg/tsdb/stackdriver/stackdriver.go
+20 -4
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@@ -59,7 +59,7 @@ func (e *StackdriverExecutor) Query(ctx context.Context, dsInfo *models.DataSour
Results: make(map[string]*tsdb.QueryResult),
}
queries, err := e.parseQueries(tsdbQuery)
queries, err := e.buildQueries(tsdbQuery)
if err != nil {
return nil, err
}
@@ -75,7 +75,7 @@ func (e *StackdriverExecutor) Query(ctx context.Context, dsInfo *models.DataSour
return result, nil
}
func (e *StackdriverExecutor) parseQueries(tsdbQuery *tsdb.TsdbQuery) ([]*StackdriverQuery, error) {
func (e *StackdriverExecutor) buildQueries(tsdbQuery *tsdb.TsdbQuery) ([]*StackdriverQuery, error) {
stackdriverQueries := []*StackdriverQuery{}
startTime, err := tsdbQuery.TimeRange.ParseFrom()
@@ -102,8 +102,8 @@ func (e *StackdriverExecutor) parseQueries(tsdbQuery *tsdb.TsdbQuery) ([]*Stackd
params := url.Values{}
params.Add("interval.startTime", startTime.UTC().Format(time.RFC3339))
params.Add("interval.endTime", endTime.UTC().Format(time.RFC3339))
params.Add("aggregation.perSeriesAligner", "ALIGN_NONE")
params.Add("filter", metricType)
params.Add("filter", "metric.type=\""+metricType+"\"")
setAggParams(&params, query)
if setting.Env == setting.DEV {
slog.Debug("Stackdriver request", "params", params)
@@ -119,6 +119,22 @@ func (e *StackdriverExecutor) parseQueries(tsdbQuery *tsdb.TsdbQuery) ([]*Stackd
return stackdriverQueries, nil
}
func setAggParams(params *url.Values, query *tsdb.Query) {
primaryAggregation := query.Model.Get("primaryAggregation").MustString()
if primaryAggregation == "" {
primaryAggregation = "REDUCE_NONE"
}
if primaryAggregation == "REDUCE_NONE" {
params.Add("aggregation.perSeriesAligner", "ALIGN_NONE")
} else {
params.Add("aggregation.crossSeriesReducer", primaryAggregation)
params.Add("aggregation.perSeriesAligner", "ALIGN_MEAN")
params.Add("aggregation.alignmentPeriod", "+60s")
}
}
func (e *StackdriverExecutor) executeQuery(ctx context.Context, query *StackdriverQuery, tsdbQuery *tsdb.TsdbQuery) (*tsdb.QueryResult, error) {
queryResult := &tsdb.QueryResult{Meta: simplejson.New(), RefId: query.RefID}