[#2241] metrics: Fix request count metrics names

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

CHANGELOG.md

@@ -33,6 +33,7 @@ Changelog for FrostFS Node
 - Expired objects could be returned if not marked with GC yet (#2213)
 - `neofs-adm morph dump-hashes` now properly iterates over custom domain (#2224)
 - Possible deadlock in write-cache (#2239)
+- Fix `*_req_count` and `*_req_count_success` metric values (#2241)
 
 ### Removed
 ### Updated

pkg/metrics/object.go

@@ -51,13 +51,13 @@ func newMethodCallCounter(name string) methodCount {
 		success: prometheus.NewCounter(prometheus.CounterOpts{
 			Namespace: namespace,
 			Subsystem: objectSubsystem,
-			Name:      fmt.Sprintf("%s_req_count", name),
+			Name:      fmt.Sprintf("%s_req_count_success", name),
 			Help:      fmt.Sprintf("The number of successful %s requests processed", name),
 		}),
 		total: prometheus.NewCounter(prometheus.CounterOpts{
 			Namespace: namespace,
 			Subsystem: objectSubsystem,
-			Name:      fmt.Sprintf("%s_req_count_success", name),
+			Name:      fmt.Sprintf("%s_req_count", name),
 			Help:      fmt.Sprintf("Total number of %s requests processed", name),
 		}),
 	}