diff --git a/roles/host.py b/roles/host.py
index 7289673c3522b24102a6ca73082db400db572c05..32c6a041015bae39c98b6ed606fcde4d18e146c4 100644
--- a/roles/host.py
+++ b/roles/host.py
@@ -93,7 +93,11 @@ class Host(object):
     def store_solution(self, solution):
         
         if 'part_id' in solution:
+            request_id = solution['request_id']
+
             if solution['status'] != 'done':
+                if request_id in self.request:
+                    self.request[request_id].store_failed(solution)
                 return {'status': 'ignored'}
             problem_key = solution['problem']
             
@@ -102,14 +106,14 @@ class Host(object):
                 self.request[request_id].store_response(solution)
 
             if problem_key in self.problems:
-                res = self.problems[problem_key].put_partial_solution(solution)
+                parts_valid = self.problems[problem_key].put_partial_solution(solution)
             else:
-                res = False
+                parts_valid = False
             
             print(solution['solution'])
             print(solution['line_map'], solution['block_map'])
 
-            if res:
+            if parts_valid and self.request[request_id].is_receive_completed:
                 merge_problem = self.problems[problem_key].partial_merge_problem
                 # print(merge_problem)
                 merge_problem['request_id'] = solution['request_id']
@@ -207,6 +211,9 @@ class Host(object):
             return {}
         elif cmd == 'cancel':
             self.worker_manager.request_cancel(params)
+            _requests = self.problem_to_request[params['problem']]
+            for r in _requests:
+                self.request[r].cancel()
             return {'status': 'canceled'}
         elif cmd == 'worker/reset':
             self.worker_manager.reset_worker(params['address'])
@@ -364,7 +371,6 @@ class Worker(object):
 class Request(object):
 
     def __init__(self, worker_manager, data, worker, timeout=10000, merge_solvers=list()):
-        # self.worker_manager = worker_manager
 
         self.data = data
         self.timeout = timeout
@@ -382,9 +388,11 @@ class Request(object):
         if self.solver.partial_mode:
             self.part_nums = len(data['group_problems'])
             self.solved = [0 for v in range(self.part_nums + 1)]
+            # self.received = [0 for v in range(self.part_nums)]
         else:
             self.part_nums = 1
             self.solved = [0]
+            # self.received = []
         
         self.is_processed = False
 
@@ -395,6 +403,14 @@ class Request(object):
         data['timeout'] = self.timeout
         data['merge_solvers'] = self.merge_solvers
         return data
+    
+    # @property
+    # def is_receive_completed(self):
+    #     return all([v>0 for v in self.received])
+    
+    @property
+    def is_receive_completed(self):
+        return all([v!=0 for v in self.solved[:-1]])
 
     def get_id(self):
         return self.request_id
@@ -407,10 +423,25 @@ class Request(object):
         if self.start_time is None:
             self.start_time = time.time()
     
+    def cancel(self):
+        if self.solved[-1] == 0:
+            self.solved[-1] = -1
+    
+    def store_failed(self, data):
+
+        self.response.append(data)
+        if 'part_id' in data:
+            idx = data['part_id']
+            self.solved[idx] = -1
+            if all([v!=0 for v in self.solved[:-1]]) and any([v<0 for v in self.solved[:-1]]):
+                self.solved[-1] = -1
+                self.done_time = time.time()
+        else:
+            self.solved[-1] = -1
+            self.done_time = time.time()
+
     def store_response(self, data):
-        # worker = data['worker']
-        # self.response[worker].append(data)
-        # self.response[worker] = data
+
         self.response.append(data)
         print(data)
         if 'part_id' in data:
@@ -420,8 +451,9 @@ class Request(object):
                 self.solved[idx] = 1
             else:
                 self.solved[idx] = -1
-            if all([v!=0 for v in self.solved]) and any([v<0 for v in self.solved]):
+            if all([v!=0 for v in self.solved[:-1]]) and any([v<0 for v in self.solved[:-1]]):
                 self.solved[-1] = -1
+                self.done_time = time.time()
         else:
             if data['status'] == 'done':
                 self.solved[-1] = 1
@@ -443,10 +475,15 @@ class Request(object):
         elif self.solved[-1] == -1:
             if self.start_time is None:
                 self.start_time = time.time()
-            elapsed_time = self.done_time - self.start_time
-            et_minutes = int(elapsed_time // 60)
-            et_seconds = int(elapsed_time % 60)
-            status = f'failed [{et_minutes}:{et_seconds:02}]'
+            counter = sum([v!=0 for v in self.solved])
+            fail_counter = sum([v<0 for v in self.solved])
+            if self.done_time is None:
+                status = f'canceled ({counter}<!{fail_counter}>/{len(self.solved)} done)'
+            else:
+                elapsed_time = self.done_time - self.start_time
+                et_minutes = int(elapsed_time // 60)
+                et_seconds = int(elapsed_time % 60)
+                status = f'failed ({counter}<!{fail_counter}>/{len(self.solved)} done) [{et_minutes}:{et_seconds:02}]'
         else:
             if self.solver.status == 'Not connected':
                 status = 'Not connected'
@@ -455,8 +492,12 @@ class Request(object):
                     if len(self.solved) == 1:
                         status_mes = 'Running'
                     elif len(self.solved) > 1:
-                        counter = sum([v>0 for v in self.solved])
-                        status_mes = f'{counter}/{len(self.solved)}'
+                        counter = sum([v!=0 for v in self.solved])
+                        fail_counter = sum([v<0 for v in self.solved])
+                        if fail_counter > 0:
+                            status_mes = f'{counter}<!{fail_counter}>/{len(self.solved)}'
+                        else:
+                            status_mes = f'{counter}/{len(self.solved)}'
 
                     if self.start_time is None:
                         self.start_time = time.time()
diff --git a/utils/data.py b/utils/data.py
index bc5ee62904f136cc54f67221361bf5a0e09fc0fc..f312ea875e5421bd768db081af61a7d83ba60df9 100644
--- a/utils/data.py
+++ b/utils/data.py
@@ -387,7 +387,6 @@ class Problem(object):
         with open(outpath, 'w') as fp:
             json.dump(self.get_dict(), fp, indent=4)
 
-        # print([len(v)>0 for v in self.partial_solutions])
         if all([len(v)>0 for v in self.partial_solutions]):
             return True
         else: