Store Gateway: Convert metrics from summary to histograms (#5239)

* Convert following metrics from summary to histogram

cortex_bucket_store_series_blocks_queried
cortex_bucket_store_series_data_fetched
cortex_bucket_store_series_data_size_touched_bytes
cortex_bucket_store_series_data_size_fetched_bytes
cortex_bucket_store_series_data_touched
cortex_bucket_store_series_result_series

Signed-off-by: Friedrich Gonzalez <[email protected]>

* Update changelog

Signed-off-by: Friedrich Gonzalez <[email protected]>

* fix changelog

Signed-off-by: Friedrich Gonzalez <[email protected]>

---------

Signed-off-by: Friedrich Gonzalez <[email protected]>

Author: friedrichg

CHANGELOG.md

@@ -1,6 +1,7 @@
 # Changelog
 
 ## master / unreleased
+* [CHANGE] Store gateways summary metrics have been converted to histograms `cortex_bucket_store_series_blocks_queried`, `cortex_bucket_store_series_data_fetched`, `cortex_bucket_store_series_data_size_touched_bytes`, `cortex_bucket_store_series_data_size_fetched_bytes`, `cortex_bucket_store_series_data_touched`, `cortex_bucket_store_series_result_series` #5239
 
 * [ENHANCEMENT] Querier: Batch Iterator optimization to prevent transversing it multiple times query ranges steps does not overlap. #5237
 

pkg/storegateway/bucket_store_metrics.go

@@ -214,16 +214,16 @@ func (m *BucketStoreMetrics) Collect(out chan<- prometheus.Metric) {
 
 	data.SendSumOfGaugesPerUser(out, m.blocksLoaded, "thanos_bucket_store_blocks_loaded")
 
-	data.SendSumOfSummariesWithLabels(out, m.seriesDataTouched, "thanos_bucket_store_series_data_touched", "data_type")
-	data.SendSumOfSummariesWithLabels(out, m.seriesDataFetched, "thanos_bucket_store_series_data_fetched", "data_type")
-	data.SendSumOfSummariesWithLabels(out, m.seriesDataSizeTouched, "thanos_bucket_store_series_data_size_touched_bytes", "data_type")
-	data.SendSumOfSummariesWithLabels(out, m.seriesDataSizeFetched, "thanos_bucket_store_series_data_size_fetched_bytes", "data_type")
-	data.SendSumOfSummariesWithLabels(out, m.seriesBlocksQueried, "thanos_bucket_store_series_blocks_queried")
+	data.SendSumOfHistogramsWithLabels(out, m.seriesDataTouched, "thanos_bucket_store_series_data_touched", "data_type")
+	data.SendSumOfHistogramsWithLabels(out, m.seriesDataFetched, "thanos_bucket_store_series_data_fetched", "data_type")
+	data.SendSumOfHistogramsWithLabels(out, m.seriesDataSizeTouched, "thanos_bucket_store_series_data_size_touched_bytes", "data_type")
+	data.SendSumOfHistogramsWithLabels(out, m.seriesDataSizeFetched, "thanos_bucket_store_series_data_size_fetched_bytes", "data_type")
+	data.SendSumOfHistogramsWithLabels(out, m.seriesBlocksQueried, "thanos_bucket_store_series_blocks_queried")
 
 	data.SendSumOfHistograms(out, m.seriesGetAllDuration, "thanos_bucket_store_series_get_all_duration_seconds")
 	data.SendSumOfHistograms(out, m.seriesMergeDuration, "thanos_bucket_store_series_merge_duration_seconds")
 	data.SendSumOfCounters(out, m.seriesRefetches, "thanos_bucket_store_series_refetches_total")
-	data.SendSumOfSummaries(out, m.resultSeriesCount, "thanos_bucket_store_series_result_series")
+	data.SendSumOfHistograms(out, m.resultSeriesCount, "thanos_bucket_store_series_result_series")
 	data.SendSumOfCounters(out, m.queriesDropped, "thanos_bucket_store_queries_dropped_total")
 
 	data.SendSumOfCountersWithLabels(out, m.cachedPostingsCompressions, "thanos_bucket_store_cached_postings_compressions_total", "op")