Merge pull request #497 from oasisprotocol/ptrus/feature/pprof-support

pprof support

conf/config.go

@@ -39,6 +39,8 @@ type Config struct {
 	// with it's own SQL database instance, this parameter should not
 	// be needed.
 	ArchiveHeightMax uint64 `koanf:"archive_height_max"`
+
+	PprofAddr string `koanf:"pprof_addr"`
 }
 
 // Validate performs config validation.

main.go

@@ -3,6 +3,8 @@ package main
 import (
 	"context"
 	"fmt"
+	"net/http"
+	_ "net/http/pprof" // nolint:gosec,G108
 	"os"
 	"os/signal"
 	"syscall"
@@ -172,6 +174,15 @@ func runRoot() error {
 		return err
 	}
 
+	// Enable pprof if configured.
+	if cfg.PprofAddr != "" {
+		go func() {
+			if err = http.ListenAndServe(cfg.PprofAddr, nil); err != nil { // nolint:gosec,G114
+				logging.GetLogger("pprof").Error("server stopped", "err", err)
+			}
+		}()
+	}
+
 	logger := logging.GetLogger("main")
 
 	// Decode hex runtime ID into something we can use.