diff --git a/src/MQClientAPIImpl.cpp b/src/MQClientAPIImpl.cpp
index 8ec60449f..2038f6c54 100644
--- a/src/MQClientAPIImpl.cpp
+++ b/src/MQClientAPIImpl.cpp
@@ -430,10 +430,6 @@ void MQClientAPIImpl::sendMessageAsync(const string& addr,
   }
 }
 
-void MQClientAPIImpl::deleteOpaqueForDropPullRequest(const MQMessageQueue& mq, int opaque) {
-  m_pRemotingClient->deleteOpaqueForDropPullRequest(mq, opaque);
-}
-
 PullResult* MQClientAPIImpl::pullMessage(const string& addr,
                                          PullMessageRequestHeader* pRequestHeader,
                                          int timeoutMillis,
@@ -467,21 +463,9 @@ void MQClientAPIImpl::pullMessageAsync(const string& addr,
                                        void* pArg) {
   //<!delete in future;
   AsyncCallbackWrap* cbw = new PullCallbackWarp(pullCallback, this, pArg);
-  MQMessageQueue mq;
-  AsyncArg* pAsyncArg = static_cast<AsyncArg*>(pArg);
-  if (pAsyncArg && pAsyncArg->pPullRequest) {
-    mq = pAsyncArg->mq;
-    pAsyncArg->pPullRequest->setLatestPullRequestOpaque(request.getOpaque());
-    LOG_DEBUG("pullMessageAsync set opaque:%d, mq:%s", pAsyncArg->pPullRequest->getLatestPullRequestOpaque(),
-              mq.toString().c_str());
-  }
-
   if (m_pRemotingClient->invokeAsync(addr, request, cbw, timeoutMillis) == false) {
-    LOG_ERROR("pullMessageAsync failed of addr:%s, opaque:%d, mq:%s", addr.c_str(), request.getOpaque(),
-              mq.toString().data());
-    if (pAsyncArg && pAsyncArg->pPullRequest) {
-      pAsyncArg->pPullRequest->setLatestPullRequestOpaque(0);
-    }
+    LOG_ERROR("pullMessageAsync failed of addr:%s, mq:%s", addr.c_str(),
+              static_cast<AsyncArg*>(pArg)->mq.toString().data());
     deleteAndZero(cbw);
     THROW_MQEXCEPTION(MQClientException, "pullMessageAsync failed", -1);
   }
@@ -919,4 +903,4 @@ void MQClientAPIImpl::unlockBatchMQ(const string& addr,
 }
 
 //<!************************************************************************
-}  //<!end namespace;
+}  // namespace rocketmq
diff --git a/src/MQClientAPIImpl.h b/src/MQClientAPIImpl.h
index 1a5e202c8..a36038d37 100644
--- a/src/MQClientAPIImpl.h
+++ b/src/MQClientAPIImpl.h
@@ -187,7 +187,6 @@ class MQClientAPIImpl {
                         int64 timeoutMilliseconds,
                         int maxRetryTimes = 1,
                         int retrySendTimes = 1);
-  void deleteOpaqueForDropPullRequest(const MQMessageQueue& mq, int opaque);
 
  private:
   SendResult sendMessageSync(const string& addr,
diff --git a/src/MQClientFactory.cpp b/src/MQClientFactory.cpp
index cfa62dd99..38ce2290b 100644
--- a/src/MQClientFactory.cpp
+++ b/src/MQClientFactory.cpp
@@ -988,18 +988,6 @@ void MQClientFactory::findConsumerIds(const string& topic,
   }
 }
 
-void MQClientFactory::removeDropedPullRequestOpaque(PullRequest* pullRequest) {
-  // delete the opaque record that's ignore the response of this pullrequest when drop pullrequest
-  if (!pullRequest)
-    return;
-  MQMessageQueue mq = pullRequest->m_messageQueue;
-  int opaque = pullRequest->getLatestPullRequestOpaque();
-  if (opaque > 0) {
-    LOG_INFO("####### need delete the pullrequest for opaque:%d, mq:%s", opaque, mq.toString().data());
-    getMQClientAPIImpl()->deleteOpaqueForDropPullRequest(mq, opaque);
-  }
-}
-
 void MQClientFactory::resetOffset(const string& group,
                                   const string& topic,
                                   const map<MQMessageQueue, int64>& offsetTable) {
@@ -1012,10 +1000,7 @@ void MQClientFactory::resetOffset(const string& group,
       PullRequest* pullreq = pConsumer->getRebalance()->getPullRequest(mq);
       if (pullreq) {
         pullreq->setDroped(true);
-        LOG_INFO("resetOffset setDroped for opaque:%d, mq:%s", pullreq->getLatestPullRequestOpaque(),
-                 mq.toString().data());
-        // delete the opaque record that's ignore the response of this pullrequest when drop pullrequest
-        // removeDropedPullRequestOpaque(pullreq);
+        LOG_INFO("resetOffset setDroped for mq:%s", mq.toString().data());
         pullreq->clearAllMsgs();
         pullreq->updateQueueMaxOffset(it->second);
       } else {
@@ -1102,4 +1087,4 @@ void MQClientFactory::getSessionCredentialsFromOneOfProducerOrConsumer(SessionCr
 }
 
 //<!************************************************************************
-}  //<!end namespace;
+}  // namespace rocketmq
diff --git a/src/MQClientFactory.h b/src/MQClientFactory.h
index e5d6200fc..eeb363769 100644
--- a/src/MQClientFactory.h
+++ b/src/MQClientFactory.h
@@ -108,7 +108,6 @@ class MQClientFactory {
   void addBrokerToAddrMap(const string& brokerName, map<int, string>& brokerAddrs);
   map<string, map<int, string>> getBrokerAddrMap();
   void clearBrokerAddrMap();
-  void removeDropedPullRequestOpaque(PullRequest* pullRequest);
 
  private:
   void unregisterClient(const string& producerGroup,
diff --git a/src/common/AsyncArg.h b/src/common/AsyncArg.h
index 4e237436d..fc358cb0b 100644
--- a/src/common/AsyncArg.h
+++ b/src/common/AsyncArg.h
@@ -21,7 +21,7 @@
 #include "MQMessageQueue.h"
 #include "PullAPIWrapper.h"
 #include "SubscriptionData.h"
-#include "../consumer/PullRequest.h"
+
 namespace rocketmq {
 //<!***************************************************************************
 
@@ -29,7 +29,6 @@ struct AsyncArg {
   MQMessageQueue mq;
   SubscriptionData subData;
   PullAPIWrapper* pPullWrapper;
-  PullRequest* pPullRequest;
 };
 
 //<!***************************************************************************
diff --git a/src/consumer/DefaultMQPullConsumer.cpp b/src/consumer/DefaultMQPullConsumer.cpp
index 0db381f51..2175feb85 100644
--- a/src/consumer/DefaultMQPullConsumer.cpp
+++ b/src/consumer/DefaultMQPullConsumer.cpp
@@ -263,7 +263,6 @@ void DefaultMQPullConsumer::pullAsyncImpl(const MQMessageQueue& mq,
   arg.mq = mq;
   arg.subData = *pSData;
   arg.pPullWrapper = m_pPullAPIWrapper;
-  arg.pPullRequest = NULL;
 
   try {
     unique_ptr<PullResult> pullResult(m_pPullAPIWrapper->pullKernelImpl(mq,                      // 1
diff --git a/src/consumer/DefaultMQPushConsumer.cpp b/src/consumer/DefaultMQPushConsumer.cpp
index f9e587493..0f51ea135 100644
--- a/src/consumer/DefaultMQPushConsumer.cpp
+++ b/src/consumer/DefaultMQPushConsumer.cpp
@@ -784,7 +784,6 @@ void DefaultMQPushConsumer::pullMessageAsync(PullRequest* request) {
   arg.mq = messageQueue;
   arg.subData = *pSdata;
   arg.pPullWrapper = m_pPullAPIWrapper;
-  arg.pPullRequest = request;
   try {
     request->setLastPullTimestamp(UtilAll::currentTimeMillis());
     m_pPullAPIWrapper->pullKernelImpl(messageQueue,                                 // 1
diff --git a/src/consumer/PullRequest.cpp b/src/consumer/PullRequest.cpp
index 5fd6d5832..162be2a4e 100644
--- a/src/consumer/PullRequest.cpp
+++ b/src/consumer/PullRequest.cpp
@@ -28,7 +28,6 @@ PullRequest::PullRequest(const string& groupname)
       m_queueOffsetMax(0),
       m_bDroped(false),
       m_bLocked(false),
-      m_latestPullRequestOpaque(0),
       m_bPullMsgEventInprogress(false) {}
 
 PullRequest::~PullRequest() {
@@ -46,7 +45,6 @@ PullRequest& PullRequest::operator=(const PullRequest& other) {
     m_messageQueue = other.m_messageQueue;
     m_msgTreeMap = other.m_msgTreeMap;
     m_msgTreeMapTemp = other.m_msgTreeMapTemp;
-    m_latestPullRequestOpaque = other.m_latestPullRequestOpaque;
   }
   return *this;
 }
@@ -272,15 +270,5 @@ bool PullRequest::addPullMsgEvent() {
   return false;
 }
 
-int PullRequest::getLatestPullRequestOpaque() {
-  boost::lock_guard<boost::mutex> lock(m_pullRequestLock);
-  return m_latestPullRequestOpaque;
-}
-
-void PullRequest::setLatestPullRequestOpaque(int opaque) {
-  boost::lock_guard<boost::mutex> lock(m_pullRequestLock);
-  m_latestPullRequestOpaque = opaque;
-}
-
 //<!***************************************************************************
 }  //<!end namespace;
diff --git a/src/consumer/PullRequest.h b/src/consumer/PullRequest.h
index cef6df31b..83b39b853 100644
--- a/src/consumer/PullRequest.h
+++ b/src/consumer/PullRequest.h
@@ -68,8 +68,6 @@ class PullRequest {
   boost::timed_mutex& getPullRequestCriticalSection();
   void removePullMsgEvent();
   bool addPullMsgEvent();
-  int getLatestPullRequestOpaque();
-  void setLatestPullRequestOpaque(int opaque);
 
  public:
   MQMessageQueue m_messageQueue;
@@ -89,7 +87,6 @@ class PullRequest {
   // uint64 m_tryUnlockTimes;
   uint64 m_lastPullTimestamp;
   uint64 m_lastConsumeTimestamp;
-  int m_latestPullRequestOpaque;
   boost::timed_mutex m_consumeLock;
   boost::atomic<bool> m_bPullMsgEventInprogress;
 };
diff --git a/src/consumer/Rebalance.cpp b/src/consumer/Rebalance.cpp
index a2997a714..549e41291 100644
--- a/src/consumer/Rebalance.cpp
+++ b/src/consumer/Rebalance.cpp
@@ -458,7 +458,7 @@ bool RebalancePush::updateRequestTableInRebalance(const string& topic, vector<MQ
           it->second->clearAllMsgs();  // add clear operation to avoid bad state
                                        // when dropped pullRequest returns
                                        // normal
-          LOG_INFO("drop mq:%s, delete opaque:%d", mqtemp.toString().c_str(), it->second->getLatestPullRequestOpaque());
+          LOG_INFO("drop mq:%s", mqtemp.toString().c_str());
         }
         changed = true;
       }
@@ -634,4 +634,4 @@ void RebalancePush::removeUnnecessaryMessageQueue(const MQMessageQueue& mq) {
 }
 
 //<!************************************************************************
-}  //<!end namespace;
+}  // namespace rocketmq
diff --git a/src/transport/TcpRemotingClient.cpp b/src/transport/TcpRemotingClient.cpp
index 2f2ab465c..557bf32df 100755
--- a/src/transport/TcpRemotingClient.cpp
+++ b/src/transport/TcpRemotingClient.cpp
@@ -639,21 +639,5 @@ void TcpRemotingClient::removeAllTimerCallback() {
   m_asyncTimerTable.clear();
 }
 
-void TcpRemotingClient::deleteOpaqueForDropPullRequest(const MQMessageQueue& mq, int opaque) {
-  // delete the map record of opaque<->ResponseFuture, so the answer for the pull request will
-  // discard when receive it later
-  std::shared_ptr<ResponseFuture> pFuture(findAndDeleteAsyncResponseFuture(opaque));
-  if (!pFuture) {
-    pFuture = findAndDeleteResponseFuture(opaque);
-    if (pFuture) {
-      LOG_DEBUG("succ deleted the sync pullrequest for opaque:%d, mq:%s", opaque, mq.toString().data());
-    }
-  } else {
-    LOG_DEBUG("succ deleted the async pullrequest for opaque:%d, mq:%s", opaque, mq.toString().data());
-    // delete the timeout timer for opaque for pullrequest
-    cancelTimerCallback(opaque);
-  }
-}
-
 //<!************************************************************************
 }  // namespace rocketmq
diff --git a/src/transport/TcpRemotingClient.h b/src/transport/TcpRemotingClient.h
index 82f1155ac..52e400ad0 100755
--- a/src/transport/TcpRemotingClient.h
+++ b/src/transport/TcpRemotingClient.h
@@ -58,8 +58,6 @@ class TcpRemotingClient {
 
   void registerProcessor(MQRequestCode requestCode, ClientRemotingProcessor* clientRemotingProcessor);
 
-  void deleteOpaqueForDropPullRequest(const MQMessageQueue& mq, int opaque);
-
  private:
   static void static_messageReceived(void* context, const MemoryBlock& mem, const string& addr);