Add 'physical writes' metric

Author: ccressent

receiver/oracledbreceiver/documentation.md

@@ -132,6 +132,14 @@ Number of physical reads
 | ---- | ----------- | ---------- | ----------------------- | --------- |
 | {reads} | Sum | Int | Cumulative | true |
 
+### oracledb.physical_writes
+
+Number of physical writes
+
+| Unit | Metric Type | Value Type | Aggregation Temporality | Monotonic |
+| ---- | ----------- | ---------- | ----------------------- | --------- |
+| {writes} | Sum | Int | Cumulative | true |
+
 ### oracledb.processes.limit
 
 Maximum limit of active processes, -1 if unlimited.

receiver/oracledbreceiver/internal/metadata/generated_config.go

@@ -37,6 +37,8 @@ all_set:
       enabled: true
     oracledb.physical_reads_direct:
       enabled: true
+    oracledb.physical_writes:
+      enabled: true
     oracledb.processes.limit:
       enabled: true
     oracledb.processes.usage:
@@ -98,6 +100,8 @@ none_set:
       enabled: false
     oracledb.physical_reads_direct:
       enabled: false
+    oracledb.physical_writes:
+      enabled: false
     oracledb.processes.limit:
       enabled: false
     oracledb.processes.usage:

receiver/oracledbreceiver/internal/metadata/generated_config_test.go

@@ -118,6 +118,15 @@ metrics:
       value_type: int
       input_type: string
     unit: "{reads}"
+  oracledb.physical_writes:
+    description: Number of physical writes
+    enabled: true
+    sum:
+      aggregation_temporality: cumulative
+      monotonic: true
+      value_type: int
+      input_type: string
+    unit: "{writes}"
   oracledb.user_commits:
     description: Number of user commits. When a user commits a transaction, the redo
       generated that reflects the changes made to database blocks must be written

receiver/oracledbreceiver/internal/metadata/generated_metrics.go

@@ -33,6 +33,7 @@ const (
 	userRollbacks           = "user rollbacks"
 	physicalReads           = "physical reads"
 	physicalReadsDirect     = "physical reads direct"
+	physicalWrites          = "physical writes"
 	sessionLogicalReads     = "session logical reads"
 	cpuTime                 = "CPU used by this session"
 	pgaMemory               = "session pga memory"
@@ -108,6 +109,7 @@ func (s *oracleScraper) scrape(ctx context.Context) (pmetric.Metrics, error) {
 		s.metricsBuilderConfig.Metrics.OracledbUserRollbacks.Enabled ||
 		s.metricsBuilderConfig.Metrics.OracledbPhysicalReads.Enabled ||
 		s.metricsBuilderConfig.Metrics.OracledbPhysicalReadsDirect.Enabled ||
+		s.metricsBuilderConfig.Metrics.OracledbPhysicalWrites.Enabled ||
 		s.metricsBuilderConfig.Metrics.OracledbLogicalReads.Enabled ||
 		s.metricsBuilderConfig.Metrics.OracledbCPUTime.Enabled ||
 		s.metricsBuilderConfig.Metrics.OracledbPgaMemory.Enabled ||
@@ -167,6 +169,11 @@ func (s *oracleScraper) scrape(ctx context.Context) (pmetric.Metrics, error) {
 				if err != nil {
 					scrapeErrors = append(scrapeErrors, err)
 				}
+			case physicalWrites:
+				err := s.mb.RecordOracledbPhysicalWritesDataPoint(now, row["VALUE"])
+				if err != nil {
+					scrapeErrors = append(scrapeErrors, err)
+				}
 			case sessionLogicalReads:
 				err := s.mb.RecordOracledbLogicalReadsDataPoint(now, row["VALUE"])
 				if err != nil {