From 33ed800aae897d5b61d4fa3893fc6a0c166f63d1 Mon Sep 17 00:00:00 2001
From: pk910 <philipp@pk910.de>
Date: Thu, 24 Aug 2023 12:38:57 +0200
Subject: [PATCH] log stack trace for subroutine panics

---
 indexer/cacheLogic.go   | 3 ++-
 indexer/epochStats.go   | 5 +++--
 indexer/synchronizer.go | 3 ++-
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/indexer/cacheLogic.go b/indexer/cacheLogic.go
index 223040a5..f27e57f8 100644
--- a/indexer/cacheLogic.go
+++ b/indexer/cacheLogic.go
@@ -1,6 +1,7 @@
 package indexer
 
 import (
+	"runtime/debug"
 	"time"
 
 	"github.com/pk910/light-beaconchain-explorer/db"
@@ -11,7 +12,7 @@ import (
 func (cache *indexerCache) runCacheLoop() {
 	defer func() {
 		if err := recover(); err != nil {
-			logger.WithError(err.(error)).Errorf("uncaught panic in runCacheLoop subroutine: %v", err)
+			logger.WithError(err.(error)).Errorf("uncaught panic in runCacheLoop subroutine: %v, stack: %v", err, string(debug.Stack()))
 		}
 	}()
 
diff --git a/indexer/epochStats.go b/indexer/epochStats.go
index 60d1cd8a..b22a3135 100644
--- a/indexer/epochStats.go
+++ b/indexer/epochStats.go
@@ -3,6 +3,7 @@ package indexer
 import (
 	"bytes"
 	"fmt"
+	"runtime/debug"
 	"strconv"
 	"strings"
 	"sync"
@@ -167,7 +168,7 @@ func (client *IndexerClient) ensureEpochStats(epoch uint64, head []byte) error {
 func (epochStats *EpochStats) ensureEpochStatsLazy(client *IndexerClient, proposerRsp *rpctypes.StandardV1ProposerDutiesResponse) {
 	defer func() {
 		if err := recover(); err != nil {
-			logger.WithField("client", client.clientName).Errorf("uncaught panic in ensureEpochStats subroutine: %v", err)
+			logger.WithField("client", client.clientName).Errorf("uncaught panic in ensureEpochStats subroutine: %v, stack: %v", err, string(debug.Stack()))
 		}
 	}()
 	epochStats.dutiesMutex.Lock()
@@ -285,7 +286,7 @@ func (epochStats *EpochStats) ensureEpochStatsLazy(client *IndexerClient, propos
 func (epochStats *EpochStats) ensureValidatorStatsLazy(client *IndexerClient, stateRef string) {
 	defer func() {
 		if err := recover(); err != nil {
-			logger.WithField("client", client.clientName).Errorf("uncaught panic in ensureValidatorStats subroutine: %v", err)
+			logger.WithField("client", client.clientName).Errorf("uncaught panic in ensureValidatorStats subroutine: %v, stack: %v", err, string(debug.Stack()))
 		}
 	}()
 	epochStats.loadValidatorStats(client, stateRef)
diff --git a/indexer/synchronizer.go b/indexer/synchronizer.go
index ef1c8cb2..89bedb7a 100644
--- a/indexer/synchronizer.go
+++ b/indexer/synchronizer.go
@@ -2,6 +2,7 @@ package indexer
 
 import (
 	"fmt"
+	"runtime/debug"
 	"sync"
 	"time"
 
@@ -68,7 +69,7 @@ func (sync *synchronizerState) startSync(startEpoch uint64) {
 func (sync *synchronizerState) runSync() {
 	defer func() {
 		if err := recover(); err != nil {
-			synclogger.Errorf("uncaught panic in runSync subroutine: %v", err)
+			synclogger.Errorf("uncaught panic in runSync subroutine: %v, stack: %v", err, string(debug.Stack()))
 		}
 	}()