fix: clamp set interval guage to max interval

internal/operation/interval.go

@@ -159,7 +159,11 @@ func (i *Interval) SetIntervalGauge(rowsModified int) {
 		i.noActivityCount++
 
 		if i.noActivityCount >= i.incBackoffCount {
-			i.currInterval *= 2
+			if i.currInterval > i.maxInterval/2 {
+				i.currInterval = i.maxInterval
+			} else {
+				i.currInterval *= 2
+			}
 			i.noActivityCount = 0
 		}
 	}

internal/operation/interval_test.go

@@ -158,6 +158,26 @@ func TestInterval_SetIntervalGauge_BackoffMechanism(t *testing.T) {
 	assert.Equal(t, 200*time.Millisecond, interval.currInterval, "Should double again after 3 more zero-row updates")
 }
 
+func TestInterval_SetIntervalGauge_CapsBeforeOverflow(t *testing.T) {
+	const maxDuration = time.Duration(1<<63 - 1)
+
+	interval := &Interval{
+		resourceId:      testResourceID,
+		maxJitter:       0,
+		startInterval:   time.Second,
+		currInterval:    maxDuration/2 + 1,
+		maxInterval:     maxDuration,
+		noActivityCount: 0,
+		incBackoffCount: 1,
+		repo:            v1.NewNoOpIntervalSettingsRepository(),
+	}
+
+	interval.SetIntervalGauge(0)
+
+	assert.Equal(t, maxDuration, interval.currInterval, "Should cap before doubling overflows")
+	assert.Equal(t, 0, interval.noActivityCount, "Should reset count after backoff")
+}
+
 func TestInterval_SetIntervalGauge_ConcurrentAccess(t *testing.T) {
 	interval := &Interval{
 		resourceId:      testResourceID,