diff --git a/redisstream/RedisStreamMQ.cpp b/redisstream/RedisStreamMQ.cpp
index 707ed9d..ebccb0f 100644
--- a/redisstream/RedisStreamMQ.cpp
+++ b/redisstream/RedisStreamMQ.cpp
@@ -686,6 +686,17 @@ private:
         }
 
         if (r->type == REDIS_REPLY_STRING) {
+            std::string message_id = r->str
+                ? std::string(r->str, r->len)
+                : std::string();
+            std::cout << "[REDIS_STREAM][SEND_OK]"
+                      << " stream=" << stream
+                      << " id=" << message_id
+                      << " key=" << key
+                      << " tag=" << tag
+                      << " enc=" << enc
+                      << " body_len=" << body.size()
+                      << std::endl;
             freeReplyObject(r);
             return REDIS_XADD_OK;
         }
@@ -1023,13 +1034,19 @@ private:
         return NULL;
     }
 
-    void ack(const std::string& stream, const std::string& id)
+    bool ack(const std::string& stream, const std::string& id)
     {
         redisReply* r = conn_.command("XACK %b %b %b",
                                       stream.data(), stream.size(),
                                       group_.data(), group_.size(),
                                       id.data(), id.size());
-        if (r) freeReplyObject(r);
+        if (!r) {
+            return false;
+        }
+
+        bool acked = (r->type == REDIS_REPLY_INTEGER && r->integer > 0);
+        freeReplyObject(r);
+        return acked;
     }
 
     void handleOne(const Sub& sub, const std::string& id, redisReply* fieldsReply)
@@ -1054,7 +1071,16 @@ private:
 
             rocketmq::ConsumeStatus ret = cb(msg);
             if (ret == rocketmq::CONSUME_SUCCESS) {
-                ack(sub.stream, id);
+                bool acked = ack(sub.stream, id);
+                std::cout << "[REDIS_STREAM][CONSUME_OK]"
+                          << " stream=" << sub.stream
+                          << " id=" << id
+                          << " topic=" << sub.topic
+                          << " tag=" << msg.getTags()
+                          << " key=" << msg.getKeys()
+                          << " body_len=" << msg.getBody().size()
+                          << " ack=" << (acked ? "OK" : "FAIL")
+                          << std::endl;
             } else {
                 std::cout << "[REDIS_STREAM][RETRY_LATER] stream=" << sub.stream
                           << " id=" << id << std::endl;