diff --git a/vendor/github.com/IBM/sarama/metrics.go b/vendor/github.com/IBM/sarama/metrics.go
new file mode 100644
index 0000000..4f512f2
--- /dev/null
+++ b/vendor/github.com/IBM/sarama/metrics.go
@@ -0,0 +1,120 @@
+package sarama
+
+import (
+	"strconv"
+	"strings"
+	"sync"
+
+	"github.com/rcrowley/go-metrics"
+)
+
+// Use exponentially decaying reservoir for sampling histograms with the same defaults as the Java library:
+// 1028 elements, which offers a 99.9% confidence level with a 5% margin of error assuming a normal distribution,
+// and an alpha factor of 0.015, which heavily biases the reservoir to the past 5 minutes of measurements.
+// See https://github.com/dropwizard/metrics/blob/v3.1.0/metrics-core/src/main/java/com/codahale/metrics/ExponentiallyDecayingReservoir.java#L38
+const (
+	metricsReservoirSize = 1028
+	metricsAlphaFactor   = 0.015
+)
+
+func getOrRegisterHistogram(name string, r metrics.Registry) metrics.Histogram {
+	return r.GetOrRegister(name, func() metrics.Histogram {
+		return metrics.NewHistogram(metrics.NewExpDecaySample(metricsReservoirSize, metricsAlphaFactor))
+	}).(metrics.Histogram)
+}
+
+func getMetricNameForBroker(name string, broker *Broker) string {
+	// Use broker id like the Java client as it does not contain '.' or ':' characters that
+	// can be interpreted as special character by monitoring tool (e.g. Graphite)
+	return name + "-for-broker-" + strconv.FormatInt(int64(broker.ID()), 10)
+}
+
+func getMetricNameForTopic(name string, topic string) string {
+	// Convert dot to _ since reporters like Graphite typically use dot to represent hierarchy
+	// cf. KAFKA-1902 and KAFKA-2337
+	return name + "-for-topic-" + strings.ReplaceAll(topic, ".", "_")
+}
+
+func getOrRegisterTopicMeter(name string, topic string, r metrics.Registry) metrics.Meter {
+	return metrics.GetOrRegisterMeter(getMetricNameForTopic(name, topic), r)
+}
+
+func getOrRegisterTopicHistogram(name string, topic string, r metrics.Registry) metrics.Histogram {
+	return getOrRegisterHistogram(getMetricNameForTopic(name, topic), r)
+}
+
+// cleanupRegistry is an implementation of metrics.Registry that allows
+// to unregister from the parent registry only those metrics
+// that have been registered in cleanupRegistry
+type cleanupRegistry struct {
+	parent  metrics.Registry
+	metrics map[string]struct{}
+	mutex   sync.RWMutex
+}
+
+func newCleanupRegistry(parent metrics.Registry) metrics.Registry {
+	return &cleanupRegistry{
+		parent:  parent,
+		metrics: map[string]struct{}{},
+	}
+}
+
+func (r *cleanupRegistry) Each(fn func(string, interface{})) {
+	r.mutex.RLock()
+	defer r.mutex.RUnlock()
+	wrappedFn := func(name string, iface interface{}) {
+		if _, ok := r.metrics[name]; ok {
+			fn(name, iface)
+		}
+	}
+	r.parent.Each(wrappedFn)
+}
+
+func (r *cleanupRegistry) Get(name string) interface{} {
+	r.mutex.RLock()
+	defer r.mutex.RUnlock()
+	if _, ok := r.metrics[name]; ok {
+		return r.parent.Get(name)
+	}
+	return nil
+}
+
+func (r *cleanupRegistry) GetOrRegister(name string, metric interface{}) interface{} {
+	r.mutex.Lock()
+	defer r.mutex.Unlock()
+	r.metrics[name] = struct{}{}
+	return r.parent.GetOrRegister(name, metric)
+}
+
+func (r *cleanupRegistry) Register(name string, metric interface{}) error {
+	r.mutex.Lock()
+	defer r.mutex.Unlock()
+	r.metrics[name] = struct{}{}
+	return r.parent.Register(name, metric)
+}
+
+func (r *cleanupRegistry) RunHealthchecks() {
+	r.parent.RunHealthchecks()
+}
+
+func (r *cleanupRegistry) GetAll() map[string]map[string]interface{} {
+	return r.parent.GetAll()
+}
+
+func (r *cleanupRegistry) Unregister(name string) {
+	r.mutex.Lock()
+	defer r.mutex.Unlock()
+	if _, ok := r.metrics[name]; ok {
+		delete(r.metrics, name)
+		r.parent.Unregister(name)
+	}
+}
+
+func (r *cleanupRegistry) UnregisterAll() {
+	r.mutex.Lock()
+	defer r.mutex.Unlock()
+	for name := range r.metrics {
+		delete(r.metrics, name)
+		r.parent.Unregister(name)
+	}
+}