Influx: Make max series limit configurable and show the limiting message if applied (#31025)

* Add configuration in ConfigEditor and default to 1000

* Show data in explore if any even if there is an error

* Update pkg/tsdb/influxdb/flux/executor.go

* Better handling of defaults

* Add test for runQuery to show data even with error

* Update public/app/store/configureStore.ts

Co-authored-by: Giordano Ricci <gio.ricci@grafana.com>

* Update public/app/plugins/datasource/influxdb/components/ConfigEditor.tsx

Co-authored-by: Ivana Huckova <30407135+ivanahuckova@users.noreply.github.com>

* Update tooltip

* Update input

* Lint fixes

* Update snapshots

* Update decorator tests

Co-authored-by: Giordano Ricci <gio.ricci@grafana.com>
Co-authored-by: Ivana Huckova <30407135+ivanahuckova@users.noreply.github.com>

pkg/tsdb/influxdb/flux/executor.go

@@ -85,7 +85,9 @@ func readDataFrames(result *api.QueryTableResult, maxPoints int, maxSeries int)
 		}
 	}
 
-	// Attach any errors (may be null)
-	dr.Error = result.Err()
+	// result.Err() is probably more important then the other errors
+	if result.Err() != nil {
+		dr.Error = result.Err()
+	}
 	return dr
 }

pkg/tsdb/influxdb/flux/flux.go

@@ -39,7 +39,9 @@ func Query(ctx context.Context, dsInfo *models.DataSource, tsdbQuery *tsdb.TsdbQ
 			continue
 		}
 
-		res := executeQuery(ctx, *qm, r, 50)
+		// If the default changes also update labels/placeholder in config page.
+		maxSeries := dsInfo.JsonData.Get("maxSeries").MustInt(1000)
+		res := executeQuery(ctx, *qm, r, maxSeries)
 
 		tRes.Results[query.RefId] = backendDataResponseToTSDBResponse(&res, query.RefId)
 	}