diff --git a/testbed/tests/log_test.go b/testbed/tests/log_test.go
index f46e2abd04f2..b98c3493b22e 100644
--- a/testbed/tests/log_test.go
+++ b/testbed/tests/log_test.go
@@ -371,41 +371,66 @@ func TestLargeFileOnce(t *testing.T) {
 }
 
 func TestMemoryLimiterHit(t *testing.T) {
-	otlpreceiver := testbed.NewOTLPDataReceiver(testutil.GetAvailablePort(t))
-	otlpreceiver.WithRetry(`
+	tests := []struct {
+		name     string
+		sender   func() testbed.DataSender
+		receiver func() testbed.DataReceiver
+	}{
+		{
+			name: "otlp",
+			sender: func() testbed.DataSender {
+				return testbed.NewOTLPLogsDataSender(testbed.DefaultHost, testutil.GetAvailablePort(t))
+			},
+		},
+		{
+			name: "filelog",
+			sender: func() testbed.DataSender {
+				return datasenders.NewFileLogWriter().WithRetry(`
+    retry_on_failure:
+      enabled: true
+`)
+			},
+		},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			otlpreceiver := testbed.NewOTLPDataReceiver(testutil.GetAvailablePort(t))
+			otlpreceiver.WithRetry(`
     retry_on_failure:
       enabled: true
       max_interval: 5s
 `)
-	otlpreceiver.WithQueue(`
+			otlpreceiver.WithQueue(`
     sending_queue:
-      enabled: true
-      queue_size: 100000
-      num_consumers: 20
+       enabled: true
+       queue_size: 100000
+       num_consumers: 20
 `)
-	otlpreceiver.WithTimeout(`
+			otlpreceiver.WithTimeout(`
     timeout: 0s
 `)
-	processors := []ProcessorNameAndConfigBody{
-		{
-			Name: "memory_limiter",
-			Body: `
+			processors := []ProcessorNameAndConfigBody{
+				{
+					Name: "memory_limiter",
+					Body: `
   memory_limiter:
     check_interval: 1s
     limit_mib: 300
     spike_limit_mib: 150
 `,
-		},
+				},
+			}
+			ScenarioMemoryLimiterHit(
+				t,
+				test.sender(),
+				otlpreceiver,
+				testbed.LoadOptions{
+					DataItemsPerSecond: 100000,
+					ItemsPerBatch:      1000,
+					Parallel:           1,
+					MaxDelay:           20 * time.Second,
+				},
+				performanceResultsSummary, 100, processors)
+		})
 	}
-	ScenarioMemoryLimiterHit(
-		t,
-		testbed.NewOTLPLogsDataSender(testbed.DefaultHost, testutil.GetAvailablePort(t)),
-		otlpreceiver,
-		testbed.LoadOptions{
-			DataItemsPerSecond: 100000,
-			ItemsPerBatch:      1000,
-			Parallel:           1,
-			MaxDelay:           20 * time.Second,
-		},
-		performanceResultsSummary, 100, processors)
 }
diff --git a/testbed/tests/scenarios.go b/testbed/tests/scenarios.go
index cdb897c3b260..a5aa6fc84e96 100644
--- a/testbed/tests/scenarios.go
+++ b/testbed/tests/scenarios.go
@@ -11,6 +11,7 @@ import (
 	"math/rand"
 	"path"
 	"path/filepath"
+	"regexp"
 	"testing"
 	"time"
 
@@ -22,7 +23,11 @@ import (
 	"github.com/open-telemetry/opentelemetry-collector-contrib/testbed/testbed"
 )
 
-var performanceResultsSummary testbed.TestResultsSummary = &testbed.PerformanceResults{}
+var (
+	batchRegex                                           = regexp.MustCompile(` batch_index=(\S+) `)
+	itemRegex                                            = regexp.MustCompile(` item_index=(\S+) `)
+	performanceResultsSummary testbed.TestResultsSummary = &testbed.PerformanceResults{}
+)
 
 type ProcessorNameAndConfigBody struct {
 	Name string
@@ -658,9 +663,8 @@ func getLogsID(logToRetry []plog.Logs) []string {
 		logRecord := logElement.ResourceLogs().At(0).ScopeLogs().At(0).LogRecords()
 		for index := 0; index < logRecord.Len(); index++ {
 			logObj := logRecord.At(index)
-			itemIndex, _ := logObj.Attributes().Get("item_index")
-			batchIndex, _ := logObj.Attributes().Get("batch_index")
-			result = append(result, fmt.Sprintf("%s%s", batchIndex.AsString(), itemIndex.AsString()))
+			itemIndex, batchIndex := extractIDFromLog(logObj)
+			result = append(result, fmt.Sprintf("%s%s", batchIndex, itemIndex))
 		}
 	}
 	return result
@@ -684,3 +688,25 @@ func allElementsExistInSlice(slice1, slice2 []string) bool {
 
 	return true
 }
+
+// in case of filelog receiver, the batch_index and item_index are a part of log body.
+// we use regex to extract them
+func extractIDFromLog(log plog.LogRecord) (string, string) {
+	var batch, item string
+	match := batchRegex.FindStringSubmatch(log.Body().AsString())
+	if len(match) == 2 {
+		batch = match[0]
+	}
+	match = itemRegex.FindStringSubmatch(log.Body().AsString())
+	if len(match) == 2 {
+		batch = match[0]
+	}
+	// in case of otlp receiver, batch_index and item_index are part of attributes.
+	if batchIndex, ok := log.Attributes().Get("batch_index"); ok {
+		batch = batchIndex.AsString()
+	}
+	if itemIndex, ok := log.Attributes().Get("item_index"); ok {
+		item = itemIndex.AsString()
+	}
+	return batch, item
+}