[processor/servicegraphprocessor] Add Configurable Database Name Attribute

.chloggen/add-configurable-dbname-attribute.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: servicegraphprocessor
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: "Added a new configuration option `database_name_attribute` to allow users to specify a custom attribute name for identifying the database name in span attributes."
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [30726]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: []

connector/servicegraphconnector/README.md

@@ -140,6 +140,8 @@ The following settings can be optionally configured:
   - Default: `[db.name, net.sock.peer.addr, net.peer.name, rpc.service, net.sock.peer.name, net.peer.name, http.url, http.target]`
 - `metrics_flush_interval`: the interval at which metrics are flushed to the exporter.
   - Default: Metrics are flushed on every received batch of traces.
+- `database_name_attribute`: the attribute name used to identify the database name from span attributes.
+  - Default: `db.name`
 
 ## Example configuration
 

connector/servicegraphconnector/config.go

@@ -38,6 +38,10 @@ type Config struct {
 	// MetricsFlushInterval is the interval at which metrics are flushed to the exporter.
 	// If set to 0, metrics are flushed on every received batch of traces.
 	MetricsFlushInterval time.Duration `mapstructure:"metrics_flush_interval"`
+
+	// DatabaseNameAttribute is the attribute name used to identify the database name from span attributes.
+	// The default value is db.name.
+	DatabaseNameAttribute string `mapstructure:"database_name_attribute"`
 }
 
 type StoreConfig struct {

connector/servicegraphconnector/config_test.go

@@ -36,8 +36,9 @@ func TestLoadConfig(t *testing.T) {
 				TTL:      time.Second,
 				MaxItems: 10,
 			},
-			CacheLoop:           time.Minute,
-			StoreExpirationLoop: 2 * time.Second,
+			CacheLoop:             time.Minute,
+			StoreExpirationLoop:   2 * time.Second,
+			DatabaseNameAttribute: "db.name",
 		},
 		cfg.Connectors[component.NewID(metadata.Type)],
 	)

connector/servicegraphconnector/connector.go

@@ -44,6 +44,8 @@ var (
 	defaultPeerAttributes = []string{
 		semconv.AttributeDBName, semconv.AttributeNetSockPeerAddr, semconv.AttributeNetPeerName, semconv.AttributeRPCService, semconv.AttributeNetSockPeerName, semconv.AttributeNetPeerName, semconv.AttributeHTTPURL, semconv.AttributeHTTPTarget,
 	}
+
+	defaultDatabaseNameAttribute = semconv.AttributeDBName
 )
 
 type metricSeries struct {
@@ -110,6 +112,10 @@ func newConnector(set component.TelemetrySettings, config component.Config) *ser
 		pConfig.VirtualNodePeerAttributes = defaultPeerAttributes
 	}
 
+	if pConfig.DatabaseNameAttribute == "" {
+		pConfig.DatabaseNameAttribute = defaultDatabaseNameAttribute
+	}
+
 	meter := metadata.Meter(set)
 
 	droppedSpan, _ := meter.Int64Counter(
@@ -289,7 +295,7 @@ func (p *serviceGraphConnector) aggregateMetrics(ctx context.Context, td ptrace.
 
 						// A database request will only have one span, we don't wait for the server
 						// span but just copy details from the client span
-						if dbName, ok := findAttributeValue(semconv.AttributeDBName, rAttributes, span.Attributes()); ok {
+						if dbName, ok := findAttributeValue(p.config.DatabaseNameAttribute, rAttributes, span.Attributes()); ok {
 							e.ConnectionType = store.Database
 							e.ServerService = dbName
 							e.ServerLatencySec = spanDuration(span)

connector/servicegraphconnector/testdata/service-graph-connector-config.yaml

@@ -13,6 +13,7 @@ connectors:
     store:
       ttl: 1s
       max_items: 10
+    database_name_attribute: db.name
 
 service:
   pipelines: