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better flux query for overview metrics (#74, #80)

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Michael Quigley 2022-10-19 17:37:29 -04:00
parent e5e683d694
commit 005db24691
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1 changed files with 9 additions and 15 deletions
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24
controller/overview.go
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@ -73,15 +73,15 @@ func sparkDataForServices(svcs []*store.Service) (map[string][]int64, error) {
for result.Next() {
combinedRate := int64(0)
readRate := result.Record().ValueByKey("_value_t1")
readRate := result.Record().ValueByKey("bytesRead")
if readRate != nil {
combinedRate += int64(readRate.(float64))
combinedRate += readRate.(int64)
}
writeRate := result.Record().ValueByKey("_value_t2")
writeRate := result.Record().ValueByKey("bytesWritten")
if writeRate != nil {
combinedRate += int64(writeRate.(float64))
combinedRate += writeRate.(int64)
}
svcName := result.Record().ValueByKey("service_t1").(string)
svcName := result.Record().ValueByKey("service").(string)
svcMetrics := out[svcName]
svcMetrics = append(svcMetrics, combinedRate)
out[svcName] = svcMetrics
@ -102,17 +102,11 @@ func sparkFluxQuery(svcs []*store.Service) string {
query := "read = from(bucket: \"zrok\")" +
"|> range(start: -5m)" +
"|> filter(fn: (r) => r[\"_measurement\"] == \"xfer\")" +
"|> filter(fn: (r) => r[\"_field\"] == \"bytesRead\")" +
"|> filter(fn: (r) => r[\"_field\"] == \"bytesRead\" or r[\"_field\"] == \"bytesWritten\")" +
"|> filter(fn: (r) => r[\"namespace\"] == \"frontend\")" +
svcFilter +
"|> aggregateWindow(every: 5s, fn: mean, createEmpty: true)\n\n" +
"written = from(bucket: \"zrok\")" +
"|> range(start: -5m)" +
"|> filter(fn: (r) => r[\"_measurement\"] == \"xfer\")" +
"|> filter(fn: (r) => r[\"_field\"] == \"bytesWritten\")" +
"|> filter(fn: (r) => r[\"namespace\"] == \"frontend\")" +
svcFilter +
"|> aggregateWindow(every: 5s, fn: mean, createEmpty: true)\n\n" +
"join(tables: {t1: read, t2: written}, on: [\"_time\"])"
"|> aggregateWindow(every: 5s, fn: sum, createEmpty: true)\n" +
"|> pivot(rowKey:[\"_time\"], columnKey: [\"_field\"], valueColumn: \"_value\")" +
"|> yield(name: \"last\")"
return query
}