feat(query-service): ✨ integrate pprof

Signed-off-by: Prashant Shahi <prashant@signoz.io>

deploy/docker-swarm/clickhouse-setup/docker-compose.yaml

@@ -31,8 +31,9 @@ services:
   query-service:
     image: signoz/query-service:0.7.3
     command: ["-config=/root/config/prometheus.yml"]
-    ports:
-      - "8080:8080"
+    # ports:
+    #   - "6060:6060"     # pprof port
+    #   - "8080:8080"     # query-service port
     volumes:
       - ./prometheus.yml:/root/config/prometheus.yml
       - ../dashboards:/root/config/dashboards
@@ -68,7 +69,7 @@ services:
       - "4317:4317"     # OTLP gRPC receiver
       - "4318:4318"     # OTLP HTTP receiver
       # - "8889:8889"     # Prometheus metrics exposed by the agent
-      # - "13133"         # health_check
+      # - "13133:13133"   # health_check
       # - "14268:14268"   # Jaeger receiver
       # - "55678:55678"   # OpenCensus receiver
       # - "55679:55679"   # zpages extension

deploy/docker/clickhouse-setup/docker-compose.arm.yaml

@@ -27,6 +27,9 @@ services:
     image: signoz/query-service:0.7.3
     container_name: query-service
     command: ["-config=/root/config/prometheus.yml"]
+    # ports:
+    #   - "6060:6060"     # pprof port
+    #   - "8080:8080"     # query-service port
     volumes:
       - ./prometheus.yml:/root/config/prometheus.yml
       - ../dashboards:/root/config/dashboards
@@ -62,7 +65,7 @@ services:
       - "4317:4317"     # OTLP gRPC receiver
       - "4318:4318"     # OTLP HTTP receiver
       # - "8889:8889"     # Prometheus metrics exposed by the agent
-      # - "13133"         # health_check
+      # - "13133:13133"   # health_check
       # - "14268:14268"   # Jaeger receiver
       # - "55678:55678"   # OpenCensus receiver
       # - "55679:55679"   # zpages extension

deploy/docker/clickhouse-setup/docker-compose.yaml

@@ -33,6 +33,9 @@ services:
     image: signoz/query-service:0.7.3
     container_name: query-service
     command: ["-config=/root/config/prometheus.yml"]
+    # ports:
+    #   - "6060:6060"     # pprof port
+    #   - "8080:8080"     # query-service port
     volumes:
       - ./prometheus.yml:/root/config/prometheus.yml
       - ../dashboards:/root/config/dashboards
@@ -68,7 +71,7 @@ services:
       - "4317:4317"     # OTLP gRPC receiver
       - "4318:4318"     # OTLP HTTP receiver
       # - "8889:8889"     # Prometheus metrics exposed by the agent
-      # - "13133"         # health_check
+      # - "13133:13133"   # health_check
       # - "14268:14268"   # Jaeger receiver
       # - "55678:55678"   # OpenCensus receiver
       # - "55679:55679"   # zpages extension

pkg/query-service/constants/constants.go

@@ -5,7 +5,8 @@ import (
 	"strconv"
 )
 
-const HTTPHostPort = "0.0.0.0:8080"
+const HTTPHostPort = "0.0.0.0:8080"  // Address to serve http (query service)
+const DebugHttpPort = "0.0.0.0:6060" // Address to serve http (pprof)
 
 var DruidClientUrl = os.Getenv("DruidClientUrl")
 var DruidDatasource = os.Getenv("DruidDatasource")
@@ -30,7 +31,7 @@ func GetAlertManagerApiPrefix() string {
 	return "http://alertmanager:9093/api/"
 }
 
-// Alert manager channel subpath 
+// Alert manager channel subpath
 var AmChannelApiPath = GetOrDefaultEnv("ALERTMANAGER_API_CHANNEL_PATH", "v1/routes")
 
 var RELATIONAL_DATASOURCE_PATH = GetOrDefaultEnv("SIGNOZ_LOCAL_DB_PATH", "/var/lib/signoz/signoz.db")
@@ -47,11 +48,10 @@ const (
 	OperationRequest = "operation"
 )
 
-
 func GetOrDefaultEnv(key string, fallback string) string {
 	v := os.Getenv(key)
 	if len(v) == 0 {
 		return fallback
 	}
 	return v
-}
+}

pkg/query-service/main.go

@@ -1,6 +1,8 @@
 package main
 
 import (
+	"net/http"
+	_ "net/http/pprof" // http profiler
 	"os"
 	"os/signal"
 	"syscall"
@@ -34,6 +36,10 @@ func main() {
 	logger := loggerMgr.Sugar()
 	version.PrintVersion()
 
+	go func() {
+		logger.Info(http.ListenAndServe(constants.DebugHttpPort, nil))
+	}()
+
 	serverOptions := &app.ServerOptions{
 		// HTTPHostPort:   v.GetString(app.HTTPHostPort),
 		// DruidClientUrl: v.GetString(app.DruidClientUrl),