diff --git a/etc/config.yaml b/etc/config.yaml
index c51462b48..85857255d 100644
--- a/etc/config.yaml
+++ b/etc/config.yaml
@@ -123,7 +123,7 @@ RejectJobsBeyondCapacity: false
 
 Plugin:
   # Toggle the plugin module in CraneSched
-  Enabled: true
+  Enabled: false
   # Relative to CraneBaseDir
   PlugindSockPath: "cplugind/cplugind.sock"
   # Debug level of Plugind
diff --git a/protos/Plugin.proto b/protos/Plugin.proto
index b329deca5..779b5270b 100644
--- a/protos/Plugin.proto
+++ b/protos/Plugin.proto
@@ -49,9 +49,18 @@ message EndHookReply {
   repeated TaskIdReply result = 1;
 }
 
+message JobMonitorHookRequest {
+  uint32 task_id = 1;
+  string cgroup = 2;
+}
+
+message JobMonitorHookReply {
+  bool ok = 1;
+}
 
 service CranePluginD {
   /* ----------------------------------- Called from CraneCtld ---------------------------------------------------- */  
   rpc StartHook(StartHookRequest) returns (StartHookReply);
   rpc EndHook(EndHookRequest) returns (EndHookReply);
+  rpc JobMonitorHook(JobMonitorHookRequest) returns (JobMonitorHookReply);
 }
diff --git a/src/Craned/CgroupManager.cpp b/src/Craned/CgroupManager.cpp
index f161b6e03..d7a72ef7d 100644
--- a/src/Craned/CgroupManager.cpp
+++ b/src/Craned/CgroupManager.cpp
@@ -23,6 +23,7 @@
 
 #include "CranedPublicDefs.h"
 #include "DeviceManager.h"
+#include "crane/PluginClient.h"
 #include "crane/String.h"
 
 namespace Craned {
@@ -291,6 +292,7 @@ bool CgroupManager::AllocateAndGetCgroup(task_id_t task_id, Cgroup **cg) {
     if (!cg_spec_it) return false;
     res = cg_spec_it->res_in_node;
   }
+
   {
     auto cg_it = m_task_id_to_cg_map_[task_id];
     auto &cg_unique_ptr = *cg_it;
@@ -308,6 +310,11 @@ bool CgroupManager::AllocateAndGetCgroup(task_id_t task_id, Cgroup **cg) {
     if (cg) *cg = pcg;
   }
 
+  // JobMonitorHook
+  if (g_config.Plugin.Enabled) {
+    g_plugin_client->JobMonitorHookAsync(task_id, pcg->GetCgroupString());
+  }
+
   CRANE_TRACE(
       "Setting cgroup limit of task #{}. CPU: {:.2f}, Mem: {:.2f} MB Gres: {}.",
       task_id, res.allocatable_res_in_node().cpu_core_limit(),
diff --git a/src/Craned/TaskManager.cpp b/src/Craned/TaskManager.cpp
index 7d86b518f..10630cc96 100644
--- a/src/Craned/TaskManager.cpp
+++ b/src/Craned/TaskManager.cpp
@@ -24,6 +24,7 @@
 #include "CgroupManager.h"
 #include "crane/OS.h"
 #include "protos/CraneSubprocess.pb.h"
+#include "protos/PublicDefs.pb.h"
 
 namespace Craned {
 
diff --git a/src/Utilities/PluginClient/PluginClient.cpp b/src/Utilities/PluginClient/PluginClient.cpp
index 3850ceb0f..c548445ea 100644
--- a/src/Utilities/PluginClient/PluginClient.cpp
+++ b/src/Utilities/PluginClient/PluginClient.cpp
@@ -33,8 +33,10 @@
 
 #include "crane/GrpcHelper.h"
 #include "crane/Logger.h"
+#include "crane/PublicHeader.h"
 #include "protos/Crane.grpc.pb.h"
 #include "protos/Crane.pb.h"
+#include "protos/Plugin.pb.h"
 #include "protos/PublicDefs.pb.h"
 
 namespace plugin {
@@ -145,6 +147,18 @@ grpc::Status PluginClient::SendEndHook_(grpc::ClientContext* context,
   return m_stub_->EndHook(context, *request, &reply);
 }
 
+grpc::Status PluginClient::SendJobMonitorHook_(grpc::ClientContext* context,
+                                               google::protobuf::Message* msg) {
+  using crane::grpc::plugin::JobMonitorHookReply;
+  using crane::grpc::plugin::JobMonitorHookRequest;
+
+  auto request = dynamic_cast<JobMonitorHookRequest*>(msg);
+  JobMonitorHookReply reply;
+
+  CRANE_TRACE("[Plugin] Sending JobMonitorHook.");
+  return m_stub_->JobMonitorHook(context, *request, &reply);
+}
+
 void PluginClient::StartHookAsync(std::vector<crane::grpc::TaskInfo> tasks) {
   auto request = std::make_unique<crane::grpc::plugin::StartHookRequest>();
   auto* task_list = request->mutable_task_info_list();
@@ -175,4 +189,16 @@ void PluginClient::EndHookAsync(std::vector<crane::grpc::TaskInfo> tasks) {
   m_event_queue_.enqueue(std::move(e));
 }
 
+void PluginClient::JobMonitorHookAsync(task_id_t task_id,
+                                       std::string cgroup_path) {
+  auto request = std::make_unique<crane::grpc::plugin::JobMonitorHookRequest>();
+  request->set_task_id(task_id);
+  request->set_cgroup(cgroup_path);
+
+  HookEvent e{HookType::JOB_MONITOR,
+              std::unique_ptr<google::protobuf::Message>(std::move(request))};
+
+  m_event_queue_.enqueue(std::move(e));
+}
+
 }  // namespace plugin
diff --git a/src/Utilities/PluginClient/include/crane/PluginClient.h b/src/Utilities/PluginClient/include/crane/PluginClient.h
index 773397167..f5d474af6 100644
--- a/src/Utilities/PluginClient/include/crane/PluginClient.h
+++ b/src/Utilities/PluginClient/include/crane/PluginClient.h
@@ -27,6 +27,7 @@
 #include <thread>
 #include <vector>
 
+#include "crane/PublicHeader.h"
 #include "protos/Crane.grpc.pb.h"
 #include "protos/Crane.pb.h"
 #include "protos/Plugin.grpc.pb.h"
@@ -47,7 +48,7 @@ class PluginClient {
   enum class HookType {
     START,
     END,
-
+    JOB_MONITOR,
     HookTypeCount,
   };
 
@@ -61,6 +62,7 @@ class PluginClient {
   // These functions are used to add HookEvent into the event queue.
   void StartHookAsync(std::vector<crane::grpc::TaskInfo> tasks);
   void EndHookAsync(std::vector<crane::grpc::TaskInfo> tasks);
+  void JobMonitorHookAsync(task_id_t task_id, std::string cgroup_path);
 
  private:
   // HookDispatchFunc is a function pointer type that handles different
@@ -71,6 +73,8 @@ class PluginClient {
                               google::protobuf::Message* msg);
   grpc::Status SendEndHook_(grpc::ClientContext* context,
                             google::protobuf::Message* msg);
+  grpc::Status SendJobMonitorHook_(grpc::ClientContext* context,
+                                   google::protobuf::Message* msg);
 
   void AsyncSendThread_();
 
@@ -85,8 +89,9 @@ class PluginClient {
   // Use this array to dispatch the hook event to the corresponding function in
   // O(1) time.
   static constexpr std::array<HookDispatchFunc, size_t(HookType::HookTypeCount)>
-      s_hook_dispatch_funcs_{
-          {&PluginClient::SendStartHook_, &PluginClient::SendEndHook_}};
+      s_hook_dispatch_funcs_{{&PluginClient::SendStartHook_,
+                              &PluginClient::SendEndHook_,
+                              &PluginClient::SendJobMonitorHook_}};
 };
 
 }  // namespace plugin