diff --git a/zookeeper-server/src/main/java/org/apache/zookeeper/server/FinalRequestProcessor.java b/zookeeper-server/src/main/java/org/apache/zookeeper/server/FinalRequestProcessor.java
index 911583f9fc2..f10fae3c0eb 100644
--- a/zookeeper-server/src/main/java/org/apache/zookeeper/server/FinalRequestProcessor.java
+++ b/zookeeper-server/src/main/java/org/apache/zookeeper/server/FinalRequestProcessor.java
@@ -585,6 +585,8 @@ public void processRequest(Request request) {
             err = Code.MARSHALLINGERROR;
         }
 
+        updateReplyErrorCountMetrics(err);
+
         ReplyHeader hdr = new ReplyHeader(request.cxid, lastZxid, err.intValue());
 
         updateStats(request, lastOp, lastZxid);
@@ -626,6 +628,12 @@ public void processRequest(Request request) {
         }
     }
 
+    private void updateReplyErrorCountMetrics(Code errorCode) {
+        if (!Code.OK.equals(errorCode)) {
+            ServerMetrics.getMetrics().REPLY_ERROR_COUNT.add(errorCode.name(), 1);
+        }
+    }
+
     private Record handleGetChildrenRequest(Record request, ServerCnxn cnxn, List<Id> authInfo) throws KeeperException, IOException {
         GetChildrenRequest getChildrenRequest = (GetChildrenRequest) request;
         String path = getChildrenRequest.getPath();
diff --git a/zookeeper-server/src/main/java/org/apache/zookeeper/server/ServerMetrics.java b/zookeeper-server/src/main/java/org/apache/zookeeper/server/ServerMetrics.java
index e3476ff6dd7..18c5ab3783d 100644
--- a/zookeeper-server/src/main/java/org/apache/zookeeper/server/ServerMetrics.java
+++ b/zookeeper-server/src/main/java/org/apache/zookeeper/server/ServerMetrics.java
@@ -269,6 +269,8 @@ private ServerMetrics(MetricsProvider metricsProvider) {
         JVM_PAUSE_TIME = metricsContext.getSummary("jvm_pause_time_ms", DetailLevel.ADVANCED);
 
         QUOTA_EXCEEDED_ERROR_PER_NAMESPACE = metricsContext.getCounterSet(QuotaMetricsUtils.QUOTA_EXCEEDED_ERROR_PER_NAMESPACE);
+
+        REPLY_ERROR_COUNT = metricsContext.getCounterSet("reply_error_count");
     }
 
     /**
@@ -547,6 +549,8 @@ private ServerMetrics(MetricsProvider metricsProvider) {
 
     public final CounterSet QUOTA_EXCEEDED_ERROR_PER_NAMESPACE;
 
+    public final CounterSet REPLY_ERROR_COUNT;
+
     private final MetricsProvider metricsProvider;
 
     public void resetAll() {