diff --git a/mindspore/ccsrc/ps/constants.h b/mindspore/ccsrc/ps/constants.h
index 59e4284587..b6e2824052 100644
--- a/mindspore/ccsrc/ps/constants.h
+++ b/mindspore/ccsrc/ps/constants.h
@@ -67,7 +67,7 @@ constexpr int64_t kPullCmd = 51;
 constexpr size_t kInvalidKey = UINT64_MAX;
 constexpr int64_t kInvalidID = -1;
 
-using DataPtr = std::shared_ptr<unsigned char>;
+using DataPtr = std::shared_ptr<unsigned char[]>;
 using VectorPtr = std::shared_ptr<std::vector<unsigned char>>;
 using Key = uint64_t;
 using Keys = std::vector<Key>;
diff --git a/mindspore/ccsrc/ps/core/abstract_node.cc b/mindspore/ccsrc/ps/core/abstract_node.cc
index 4e464f5387..9b14ce48db 100644
--- a/mindspore/ccsrc/ps/core/abstract_node.cc
+++ b/mindspore/ccsrc/ps/core/abstract_node.cc
@@ -281,7 +281,7 @@ void AbstractNode::StartHeartbeatTimer(const std::shared_ptr<TcpClient> &client)
       if (!Heartbeat(client)) {
         MS_LOG(WARNING) << "The node role is:" << CommUtil::NodeRoleToString(node_info_.node_role_)
                         << ", the node id is:" << node_info_.node_id_ << " Send heartbeat timeout!";
-        if (!CheckSchedulerTimeout() && on_node_event_message_) {
+        if (CheckSchedulerTimeout() && on_node_event_message_) {
           MS_LOG(WARNING) << "The node role is:" << CommUtil::NodeRoleToString(node_info_.node_role_)
                           << ", the node id is:" << node_info_.node_id_ << " exited due to scheduler timeout!";
           is_finish_ = true;
@@ -294,6 +294,7 @@ void AbstractNode::StartHeartbeatTimer(const std::shared_ptr<TcpClient> &client)
       std::this_thread::sleep_for(std::chrono::seconds(ClusterMetadata::instance()->heartbeat_interval()));
     }
   });
+  heart_beat_thread_->detach();
 }
 
 bool AbstractNode::Heartbeat(const std::shared_ptr<TcpClient> &client, bool is_node_finish) {
@@ -307,6 +308,7 @@ bool AbstractNode::Heartbeat(const std::shared_ptr<TcpClient> &client, bool is_n
   if (!SendMessageSync(client, meta, Protos::PROTOBUF, heartbeat_message.SerializeAsString().data(),
                        heartbeat_message.ByteSizeLong())) {
     MS_LOG(WARNING) << "The node id:" << node_info_.node_id_ << " Send heartbeat timeout!";
+    return false;
   }
   return true;
 }
@@ -315,9 +317,7 @@ void AbstractNode::UpdateSchedulerTime() {
   struct timeval current_time {};
   (void)gettimeofday(&current_time, nullptr);
   scheduler_time_ = current_time;
-  MS_LOG(DEBUG) << "The node role: " << CommUtil::NodeRoleToString(node_info_.node_role_)
-                << ", the node id:" << node_info_.node_id_ << ", the node rank id:" << node_info_.rank_id_
-                << " update scheduler time, the current time is: " << current_time.tv_sec;
+  MS_LOG(DEBUG) << "Update scheduler time, the current time is: " << current_time.tv_sec;
 }
 
 bool AbstractNode::CheckSchedulerTimeout() const {
@@ -430,10 +430,13 @@ bool AbstractNode::InitClientToScheduler() {
     MS_LOG(INFO) << "The node start a tcp client!";
     client_to_scheduler_->Start();
   });
+  client_to_scheduler_thread_->detach();
 
   client_to_scheduler_->set_disconnected_callback([&]() {
     std::this_thread::sleep_for(std::chrono::milliseconds(ClusterMetadata::instance()->connect_interval()));
-    client_to_scheduler_->Init();
+    if (is_ready_.load() == false) {
+      client_to_scheduler_->Init();
+    }
   });
   return client_to_scheduler_->WaitConnected();
 }
diff --git a/mindspore/ccsrc/ps/core/abstract_node.h b/mindspore/ccsrc/ps/core/abstract_node.h
index a4503829bd..434df7160e 100644
--- a/mindspore/ccsrc/ps/core/abstract_node.h
+++ b/mindspore/ccsrc/ps/core/abstract_node.h
@@ -37,7 +37,7 @@ class AbstractNode : public Node {
 
   typedef void (AbstractNode::*ResponseHandler)(std::shared_ptr<MessageMeta> meta, const void *data, size_t size);
 
-  using DataPtr = std::shared_ptr<unsigned char>;
+  using DataPtr = std::shared_ptr<unsigned char[]>;
   using VectorPtr = std::shared_ptr<std::vector<unsigned char>>;
 
   bool Broadcast(const enum NodeRole &node_role, const DataPtr &message, size_t size, int command,
diff --git a/mindspore/ccsrc/ps/core/cluster_metadata.h b/mindspore/ccsrc/ps/core/cluster_metadata.h
index f27479af94..2039aba0b7 100644
--- a/mindspore/ccsrc/ps/core/cluster_metadata.h
+++ b/mindspore/ccsrc/ps/core/cluster_metadata.h
@@ -62,7 +62,7 @@ class ClusterMetadata {
         heartbeat_timeout_(30),
         cluster_available_timeout_(300),
         connect_interval_(100),
-        scheduler_timeout_(3600 * 5) {}
+        scheduler_timeout_(30) {}
   uint32_t worker_num_;
   uint32_t server_num_;
   // The interval for sending heartbeat packets between worker node,server node and scheduler node is 3 seconds.
diff --git a/mindspore/ccsrc/ps/core/node_info.h b/mindspore/ccsrc/ps/core/node_info.h
index b421cf2ad6..41950ca897 100644
--- a/mindspore/ccsrc/ps/core/node_info.h
+++ b/mindspore/ccsrc/ps/core/node_info.h
@@ -25,7 +25,7 @@
 namespace mindspore {
 namespace ps {
 namespace core {
-enum NodeEvent { CLUSTER_TIMEOUT = 0, NODE_TIMEOUT = 1, SCHEDULER_TIMEOUT };
+enum NodeEvent { CLUSTER_TIMEOUT = 0, NODE_TIMEOUT = 1, SCHEDULER_TIMEOUT = 2 };
 
 struct NodeInfo {
   NodeInfo() : port_(0), node_role_(NodeRole::SCHEDULER), rank_id_(0) {}
diff --git a/mindspore/ccsrc/ps/core/server_node.cc b/mindspore/ccsrc/ps/core/server_node.cc
index 62b54ad840..26f39d1b96 100644
--- a/mindspore/ccsrc/ps/core/server_node.cc
+++ b/mindspore/ccsrc/ps/core/server_node.cc
@@ -105,7 +105,7 @@ void ServerNode::ProcessSendData(std::shared_ptr<TcpConnection> conn, std::share
   MS_EXCEPTION_IF_NULL(conn);
   MS_EXCEPTION_IF_NULL(meta);
   MS_EXCEPTION_IF_NULL(data);
-  std::shared_ptr<unsigned char> res(new unsigned char[size]);
+  std::shared_ptr<unsigned char[]> res(new unsigned char[size]);
   int ret = memcpy_s(res.get(), size, data, size);
   if (ret != 0) {
     MS_LOG(EXCEPTION) << "The memcpy_s error, errorno(" << ret << ")";
@@ -131,14 +131,18 @@ bool ServerNode::Stop() {
   if (!is_already_stopped_.load()) {
     is_already_stopped_ = true;
     is_finish_ = true;
-    heart_beat_thread_->join();
+    if (heart_beat_thread_->joinable()) {
+      heart_beat_thread_->join();
+    }
     client_to_scheduler_->Stop();
     if (!connected_nodes_.empty()) {
       for (auto &connected_node : connected_nodes_) {
         connected_node.second->Stop();
       }
     }
-    client_to_scheduler_thread_->join();
+    if (client_to_scheduler_thread_->joinable()) {
+      client_to_scheduler_thread_->join();
+    }
     server_->Stop();
     server_thread_->join();
   }
diff --git a/mindspore/ccsrc/ps/core/tcp_client.cc b/mindspore/ccsrc/ps/core/tcp_client.cc
index eec706b746..25b0c9cbb9 100644
--- a/mindspore/ccsrc/ps/core/tcp_client.cc
+++ b/mindspore/ccsrc/ps/core/tcp_client.cc
@@ -311,7 +311,8 @@ bool TcpClient::SendMessage(std::shared_ptr<MessageMeta> meta, const Protos &pro
   }
   int result = bufferevent_flush(buffer_event_, EV_READ | EV_WRITE, BEV_FLUSH);
   if (result < 0) {
-    MS_LOG(EXCEPTION) << "Bufferevent flush failed!";
+    MS_LOG(ERROR) << "Bufferevent flush failed!";
+    res = false;
   }
   bufferevent_unlock(buffer_event_);
   return res;
diff --git a/mindspore/ccsrc/ps/core/worker_node.cc b/mindspore/ccsrc/ps/core/worker_node.cc
index 1870a49924..d4138c0751 100644
--- a/mindspore/ccsrc/ps/core/worker_node.cc
+++ b/mindspore/ccsrc/ps/core/worker_node.cc
@@ -63,14 +63,18 @@ bool WorkerNode::Stop() {
     is_ready_ = true;
     is_timeout_ = true;
     is_finish_ = true;
-    heart_beat_thread_->join();
+    if (heart_beat_thread_->joinable()) {
+      heart_beat_thread_->join();
+    }
     client_to_scheduler_->Stop();
     if (!connected_nodes_.empty()) {
       for (auto &connected_node : connected_nodes_) {
         connected_node.second->Stop();
       }
     }
-    client_to_scheduler_thread_->join();
+    if (client_to_scheduler_thread_->joinable()) {
+      client_to_scheduler_thread_->join();
+    }
     is_already_stopped_ = true;
   }
   return true;
diff --git a/mindspore/ccsrc/ps/parameter_server.cc b/mindspore/ccsrc/ps/parameter_server.cc
index 71d330be47..4a7256bd8e 100644
--- a/mindspore/ccsrc/ps/parameter_server.cc
+++ b/mindspore/ccsrc/ps/parameter_server.cc
@@ -21,6 +21,8 @@ namespace ps {
 void ParameterServer::Run(const FuncGraphPtr &func_graph) {
   MS_EXCEPTION_IF_NULL(func_graph);
   MS_LOG(INFO) << "PServer starts connecting to scheduler and workers...";
+  server_node_ = std::make_shared<core::ServerNode>();
+
   core::ClusterMetadata::instance()->Init(
     PSContext::instance()->initial_worker_num(), PSContext::instance()->initial_server_num(),
     PSContext::instance()->scheduler_host(), PSContext::instance()->scheduler_port());
@@ -30,14 +32,14 @@ void ParameterServer::Run(const FuncGraphPtr &func_graph) {
     return;
   }
   Init(func_graph);
-  server_node_.Start();
-  rank_id_ = server_node_.rank_id();
+  server_node_->Start();
+  rank_id_ = server_node_->rank_id();
   PSContext::instance()->SetPSRankId(rank_id_);
   thread_->join();
   SyncEmbeddingTables();
   MS_LOG(INFO) << "PServer finished updating models, starts finalizing...";
-  server_node_.Finish();
-  server_node_.Stop();
+  server_node_->Finish();
+  server_node_->Stop();
   MS_LOG(INFO) << "PServer finalized successfully.";
 }
 
@@ -49,7 +51,14 @@ bool ParameterServer::Init(const FuncGraphPtr &func_graph) {
   handler_->Init();
 
   InitOptimInfoBuilders();
-  server_node_.set_handler(*handler_);
+  server_node_->set_handler(*handler_);
+  server_node_->set_event_callback([&](const core::NodeEvent &event) {
+    if ((event == core::NodeEvent::CLUSTER_TIMEOUT) ||
+        (event == core::NodeEvent::SCHEDULER_TIMEOUT || (event == core::NodeEvent::NODE_TIMEOUT))) {
+      MS_LOG(ERROR) << "Trigger timeout event:" << event << " begin to exit the system!";
+      Finalize();
+    }
+  });
   thread_.reset(new std::thread(&ParameterServer::UpdateWeights, this));
   GetEmbeddingTableParamPtr();
   return true;
@@ -496,7 +505,7 @@ void ParameterServer::ServerHandler::operator()(std::shared_ptr<core::TcpConnect
 
   auto &handler_ptr = handlers_[meta->user_cmd()];
   (this->*handler_ptr)(data, size, output);
-  std::shared_ptr<unsigned char> res(new unsigned char[output->size()]);
+  std::shared_ptr<unsigned char[]> res(new unsigned char[output->size()]);
   MS_LOG(DEBUG) << "The output size is:" << output->size();
   if (output->size() > 0) {
     int ret = memcpy_s(res.get(), output->size(), output->data(), output->size());
@@ -505,7 +514,7 @@ void ParameterServer::ServerHandler::operator()(std::shared_ptr<core::TcpConnect
     }
   }
 
-  ps_->server_node_.Response(conn, meta, res, output->size());
+  ps_->server_node_->Response(conn, meta, res, output->size());
   MS_LOG(DEBUG) << "The request id is:" << meta->request_id() << " the current time is:"
                 << std::chrono::time_point_cast<std::chrono::microseconds>(std::chrono::high_resolution_clock::now())
                      .time_since_epoch()
@@ -682,6 +691,7 @@ void ParameterServer::ServerHandler::HandleEmbeddingLookup(DataPtr data, size_t
   *res_data.mutable_keys() = {input.keys().begin(), input.keys().end()};
 
   ps_->DoEmbeddingLookup(key, keys, &res_data);
+
   res->resize(res_data.ByteSizeLong());
   int ret =
     memcpy_s(res->data(), res_data.ByteSizeLong(), res_data.SerializeAsString().data(), res_data.ByteSizeLong());
diff --git a/mindspore/ccsrc/ps/parameter_server.h b/mindspore/ccsrc/ps/parameter_server.h
index fdccac3030..4f312c4b3c 100644
--- a/mindspore/ccsrc/ps/parameter_server.h
+++ b/mindspore/ccsrc/ps/parameter_server.h
@@ -59,6 +59,7 @@
 #include "proto/comm.pb.h"
 #include "proto/ps.pb.h"
 #include "ps/core/server_node.h"
+#include "ps/core/node.h"
 
 namespace mindspore {
 namespace ps {
@@ -82,7 +83,8 @@ class ParameterServer {
         func_graph_(nullptr),
         sess_(nullptr),
         running_(true),
-        thread_(nullptr) {}
+        thread_(nullptr),
+        server_node_(nullptr) {}
   ~ParameterServer() = default;
   ParameterServer(const ParameterServer &) = delete;
   ParameterServer &operator=(const ParameterServer &) = delete;
@@ -167,7 +169,7 @@ class ParameterServer {
   std::condition_variable apply_grads_cv_;
 
   std::unique_ptr<std::thread> thread_;
-  core::ServerNode server_node_;
+  std::shared_ptr<core::ServerNode> server_node_;
   std::map<Key, ParameterPtr> embedding_tables_;
 
   friend class ServerHandler;
diff --git a/mindspore/ccsrc/ps/worker.cc b/mindspore/ccsrc/ps/worker.cc
index 42ca12c457..360975c5c2 100644
--- a/mindspore/ccsrc/ps/worker.cc
+++ b/mindspore/ccsrc/ps/worker.cc
@@ -15,11 +15,13 @@
  */
 
 #include "ps/worker.h"
+#include "pipeline/jit/pipeline.h"
 
 namespace mindspore {
 namespace ps {
 void Worker::Run() {
   std::lock_guard<std::mutex> lock(running_mutex_);
+
   core::ClusterMetadata::instance()->Init(
     PSContext::instance()->initial_worker_num(), PSContext::instance()->initial_server_num(),
     PSContext::instance()->scheduler_host(), PSContext::instance()->scheduler_port());
@@ -33,6 +35,14 @@ void Worker::Run() {
   }
 
   Initialize();
+  worker_node_.set_event_callback([&](const core::NodeEvent &event) {
+    if ((event == core::NodeEvent::CLUSTER_TIMEOUT) ||
+        (event == core::NodeEvent::SCHEDULER_TIMEOUT || (event == core::NodeEvent::NODE_TIMEOUT))) {
+      MS_LOG(ERROR) << "Trigger timeout event:" << event << " begin to exit the system!";
+      Finalize();
+      exit(0);
+    }
+  });
   MS_LOG(INFO) << "Worker starts connecting to scheduler and server...";
   worker_node_.Start();
   MS_LOG(INFO) << "Worker connected successfully.";
@@ -86,7 +96,7 @@ void Worker::Push(const std::vector<size_t> &keys, std::vector<uintptr_t> addrs,
   }
   MS_LOG(INFO) << "The total size is:" << total_size;
 
-  while (!IsReadyForPush(keys[0])) {
+  while (running_ && (!IsReadyForPush(keys[0]))) {
     continue;
   }
   std::vector<int> sizes_int;
@@ -109,7 +119,7 @@ void Worker::Push(const std::vector<size_t> &keys, std::vector<uintptr_t> addrs,
 void Worker::Pull(const size_t key, void *dev_addr, const size_t size) {
   MS_EXCEPTION_IF_NULL(dev_addr);
   std::vector<float> variables(size / sizeof(float), 0);
-  while (!IsReadyForPull(key)) {
+  while (running_ && (!IsReadyForPull(key))) {
     continue;
   }
   PullData({key}, &variables, nullptr, kPullCmd);
@@ -214,7 +224,7 @@ void Worker::InitPSEmbeddingTable(const size_t &key, const std::vector<size_t> &
 
   std::string kv_data = embedding_table_meta.SerializeAsString();
 
-  std::shared_ptr<unsigned char> res(new unsigned char[kv_data.length()]);
+  std::shared_ptr<unsigned char[]> res(new unsigned char[kv_data.length()]);
   int ret = memcpy_s(res.get(), kv_data.length(), kv_data.data(), kv_data.length());
   if (ret != 0) {
     MS_LOG(ERROR) << "memcpy_s error, errorno(" << ret << ")";
@@ -280,7 +290,7 @@ void Worker::DoPSEmbeddingLookup(const Key &key, const std::vector<int> &lookup_
       rank_ids.push_back(i);
       std::string kv_data = messages.at(i).second.SerializeAsString();
 
-      std::shared_ptr<unsigned char> res(new unsigned char[kv_data.length()]);
+      std::shared_ptr<unsigned char[]> res(new unsigned char[kv_data.length()]);
       int ret = memcpy_s(res.get(), kv_data.length(), kv_data.data(), kv_data.length());
       if (ret != 0) {
         MS_LOG(ERROR) << "memcpy_s error, errorno(" << ret << ")";
@@ -303,7 +313,7 @@ void Worker::DoPSEmbeddingLookup(const Key &key, const std::vector<int> &lookup_
     for (auto j = 0; j < message.values_size(); j++) {
       values->push_back(message.values(j));
     }
-    MS_LOG(DEBUG) << "The embedding resp:" << values;
+    MS_LOG(DEBUG) << "The embedding resp:" << *values;
     for (auto k = 0; k < message.keys_size(); k++) {
       const Key &key = message.keys(k);
       float *addr = values->data() + value_offset;
@@ -358,7 +368,7 @@ void Worker::UpdateEmbeddingTable(const std::vector<Key> &keys, const std::vecto
       rank_ids.push_back(i);
       std::string kv_data = messages.at(i).second.SerializeAsString();
 
-      std::shared_ptr<unsigned char> res(new unsigned char[kv_data.length()]);
+      std::shared_ptr<unsigned char[]> res(new unsigned char[kv_data.length()]);
       int ret = memcpy_s(res.get(), kv_data.length(), kv_data.data(), kv_data.length());
       if (ret != 0) {
         MS_LOG(ERROR) << "memcpy_s error, errorno(" << ret << ")";
@@ -378,7 +388,7 @@ void Worker::Finalize() {
     kvs.add_keys(0);
     kvs.add_values(0.0f);
     std::string kv_data = kvs.SerializeAsString();
-    std::shared_ptr<unsigned char> res(new unsigned char[kv_data.length()]);
+    std::shared_ptr<unsigned char[]> res(new unsigned char[kv_data.length()]);
     int ret = memcpy_s(res.get(), kv_data.length(), kv_data.data(), kv_data.length());
     if (ret != 0) {
       MS_LOG(ERROR) << "memcpy_s error, errorno(" << ret << ")";
@@ -619,7 +629,7 @@ void Worker::PushData(const std::vector<Key> &keys, const std::vector<float> &va
       SendForPush(cmd, kvs, worker_init_embedding_partitioner_, {});
     } else {
       std::string kv_data = kvs.SerializeAsString();
-      std::shared_ptr<unsigned char> res(new unsigned char[kv_data.length()]);
+      std::shared_ptr<unsigned char[]> res(new unsigned char[kv_data.length()]);
       int ret = memcpy_s(res.get(), kv_data.length(), kv_data.data(), kv_data.length());
       if (ret != 0) {
         MS_LOG(ERROR) << "memcpy_s error, errorno(" << ret << ")";
@@ -920,7 +930,7 @@ void Worker::SendForPush(int cmd, const KVMessage &send, const KVPartitioner &pa
       rank_ids.push_back(i);
       std::string kv_data = messages.at(i).second.SerializeAsString();
 
-      std::shared_ptr<unsigned char> res(new unsigned char[kv_data.length()]);
+      std::shared_ptr<unsigned char[]> res(new unsigned char[kv_data.length()]);
       int ret = memcpy_s(res.get(), kv_data.length(), kv_data.data(), kv_data.length());
       if (ret != 0) {
         MS_LOG(ERROR) << "memcpy_s error, errorno(" << ret << ")";
@@ -945,7 +955,7 @@ void Worker::SendForPull(int cmd, const KVMessage &send, const KVPartitioner &pa
       rank_ids.push_back(i);
       std::string kv_data = messages.at(i).second.SerializeAsString();
 
-      std::shared_ptr<unsigned char> res(new unsigned char[kv_data.length()]);
+      std::shared_ptr<unsigned char[]> res(new unsigned char[kv_data.length()]);
       int ret = memcpy_s(res.get(), kv_data.length(), kv_data.data(), kv_data.length());
       if (ret != 0) {
         MS_LOG(ERROR) << "memcpy_s error, errorno(" << ret << ")";