[receiver/hostmetrics/memory] Add system.memory.limit

open-telemetry · Jan 5, 2024 · 98848fc · 98848fc
1 parent b275884
commit 98848fc
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diff --git a/receiver/hostmetricsreceiver/internal/scraper/memoryscraper/documentation.md b/receiver/hostmetricsreceiver/internal/scraper/memoryscraper/documentation.md
@@ -46,6 +46,14 @@ An estimate of how much memory is available for starting new applications, witho
 | ---- | ----------- | ---------- | ----------------------- | --------- |
 | By | Sum | Int | Cumulative | false |
 
+### system.memory.limit
+
+Total bytes of memory available.
+
+| Unit | Metric Type | Value Type | Aggregation Temporality | Monotonic |
+| ---- | ----------- | ---------- | ----------------------- | --------- |
+| By | Sum | Int | Cumulative | false |
+
 ### system.memory.utilization
 
 Percentage of memory bytes in use.

diff --git a/.../hostmetricsreceiver/internal/scraper/memoryscraper/internal/metadata/generated_config.go b/.../hostmetricsreceiver/internal/scraper/memoryscraper/internal/metadata/generated_config.go
diff --git a/...metricsreceiver/internal/scraper/memoryscraper/internal/metadata/generated_config_test.go b/...metricsreceiver/internal/scraper/memoryscraper/internal/metadata/generated_config_test.go
diff --git a/...hostmetricsreceiver/internal/scraper/memoryscraper/internal/metadata/generated_metrics.go b/...hostmetricsreceiver/internal/scraper/memoryscraper/internal/metadata/generated_metrics.go
diff --git a/...etricsreceiver/internal/scraper/memoryscraper/internal/metadata/generated_metrics_test.go b/...etricsreceiver/internal/scraper/memoryscraper/internal/metadata/generated_metrics_test.go
diff --git a/...hostmetricsreceiver/internal/scraper/memoryscraper/internal/metadata/testdata/config.yaml b/...hostmetricsreceiver/internal/scraper/memoryscraper/internal/metadata/testdata/config.yaml
@@ -3,6 +3,8 @@ all_set:
   metrics:
     system.linux.memory.available:
       enabled: true
+    system.memory.limit:
+      enabled: true
     system.memory.usage:
       enabled: true
     system.memory.utilization:
@@ -11,6 +13,8 @@ none_set:
   metrics:
     system.linux.memory.available:
       enabled: false
+    system.memory.limit:
+      enabled: false
     system.memory.usage:
       enabled: false
     system.memory.utilization:

diff --git a/receiver/hostmetricsreceiver/internal/scraper/memoryscraper/memory_scraper.go b/receiver/hostmetricsreceiver/internal/scraper/memoryscraper/memory_scraper.go
@@ -53,6 +53,10 @@ func (s *scraper) start(ctx context.Context, _ component.Host) error {
 	return nil
 }
 
+func (s *scraper) recordMemoryLimitMetric(now pcommon.Timestamp, memInfo *mem.VirtualMemoryStat) {
+	s.mb.RecordSystemMemoryLimitDataPoint(now, int64(memInfo.Total))
+}
+
 func (s *scraper) scrape(ctx context.Context) (pmetric.Metrics, error) {
 	ctx = context.WithValue(ctx, common.EnvKey, s.envMap)
 
@@ -69,6 +73,7 @@ func (s *scraper) scrape(ctx context.Context) (pmetric.Metrics, error) {
 				memInfo.Total), metricsLen)
 		}
 		s.recordMemoryUtilizationMetric(now, memInfo)
+		s.recordMemoryLimitMetric(now, memInfo)
 		s.recordSystemSpecificMetrics(now, memInfo)
 	}
 

diff --git a/receiver/hostmetricsreceiver/internal/scraper/memoryscraper/metadata.yaml b/receiver/hostmetricsreceiver/internal/scraper/memoryscraper/metadata.yaml
@@ -11,6 +11,15 @@ attributes:
     enum: [buffered, cached, inactive, free, slab_reclaimable, slab_unreclaimable, used]
 
 metrics:
+  system.memory.limit:
+    enabled: false
+    description: Total bytes of memory available.
+    unit: By
+    sum:
+      value_type: int
+      aggregation_temporality: cumulative
+      monotonic: false
+
   system.memory.usage:
     enabled: true
     description: Bytes of memory in use.