diff --git a/check.py b/check.py
index 64cdd26..c8bdf6c 100644
--- a/check.py
+++ b/check.py
@@ -349,74 +349,79 @@ def get_table_res(data_list):
     
     return ''.join(result_str)
 
-def keep_check_one(server: dict, shared_data_list: list, server_idx: int, interval: float):
-    try:
-        # 建立SSH连接
-        client = paramiko.SSHClient()
-        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
-        client.connect(server['ip'], port=server['port'], username=server['username'], password=server.get('password', None), key_filename=server.get('key_filename', None))
-        cmd = 'nvidia-smi --query-gpu=index,name,memory.total,memory.used,memory.free,utilization.gpu,utilization.memory,temperature.gpu --format=csv'
-
-        # 循环检测
-        while run_realtime:
-            try:
-                stdin, stdout, stderr = client.exec_command(cmd)
-                output = stdout.read().decode()
-                output = output.split('\n')
-                start_idx = 0
-                for i in range(len(output)):
-                    if output[i] == 'index, name, memory.total [MiB], memory.used [MiB], memory.free [MiB], utilization.gpu [%], utilization.memory [%], temperature.gpu':
-                        start_idx = i + 1
-                        break
-                output = output[start_idx:-1]
-                # 解析数据 -----------------------------
-                result = []
-                for data in output:
-                    data_list = data.split(', ')
-                    idx = int(data_list[0])
-                    gpu_name = data_list[1]
-                    total_mem = int(data_list[2].split(' ')[0])
-                    used_mem = int(data_list[3].split(' ')[0])
-                    free_mem = int(data_list[4].split(' ')[0])
-                    util_gpu = int(data_list[5].split(' ')[0])
-                    util_mem = int(data_list[6].split(' ')[0])
-                    temperature = int(data_list[7])
-
-                    # 简化GPU名称
-                    if gpu_name.startswith('NVIDIA '):
-                        gpu_name = gpu_name[7:]
-                    if gpu_name.startswith('GeForce '):
-                        gpu_name = gpu_name[8:]
-
-                    result.append({
-                        'idx': idx,
-                        'gpu_name': gpu_name,
-                        'total_mem': total_mem,
-                        'used_mem': used_mem,
-                        'free_mem': free_mem,
-                        'util_gpu': util_gpu,
-                        'util_mem': util_mem,
-                        'temperature': temperature
-                    })
-
-                # locked = False
-                with data_list_lock:
-                    # locked = True
-                    shared_data_list[server_idx]['info_list'] = result
-                    shared_data_list[server_idx]['updated'] = True
-                # locked = False
-            except:
-                shared_data_list[server_idx].pop('info_list')
-
-            time.sleep(interval)
-
-        # 关闭连接
-        client.close()
-    except Exception as e:
-        # if data_list_lock.locked and locked:
-        #     data_list_lock.release()
-        # print(e)
-        shared_data_list[server_idx]['err_info'] = str(e)
+def keep_check_one(server: dict, shared_data_list: list, server_idx: int, interval: float, re_connect_time: float=5):
+    # 循环连接
+    while run_realtime:
+        try:
+            # 建立SSH连接
+            client = paramiko.SSHClient()
+            client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+            client.connect(server['ip'], port=server['port'], username=server['username'], password=server.get('password', None), key_filename=server.get('key_filename', None), timeout=interval*2.5)
+            cmd = 'nvidia-smi --query-gpu=index,name,memory.total,memory.used,memory.free,utilization.gpu,utilization.memory,temperature.gpu --format=csv'
+
+            re_try_count = 0
+            # 循环检测
+            while run_realtime:
+                try:
+                    stdin, stdout, stderr = client.exec_command(cmd, timeout=interval*2.5)
+                    output = stdout.read().decode()
+                    output = output.split('\n')
+                    start_idx = 0
+                    for i in range(len(output)):
+                        if output[i] == 'index, name, memory.total [MiB], memory.used [MiB], memory.free [MiB], utilization.gpu [%], utilization.memory [%], temperature.gpu':
+                            start_idx = i + 1
+                            break
+                    output = output[start_idx:-1]
+                    # 解析数据 -----------------------------
+                    result = []
+                    for data in output:
+                        data_list = data.split(', ')
+                        idx = int(data_list[0])
+                        gpu_name = data_list[1]
+                        total_mem = int(data_list[2].split(' ')[0])
+                        used_mem = int(data_list[3].split(' ')[0])
+                        free_mem = int(data_list[4].split(' ')[0])
+                        util_gpu = int(data_list[5].split(' ')[0])
+                        util_mem = int(data_list[6].split(' ')[0])
+                        temperature = int(data_list[7])
+
+                        # 简化GPU名称
+                        if gpu_name.startswith('NVIDIA '):
+                            gpu_name = gpu_name[7:]
+                        if gpu_name.startswith('GeForce '):
+                            gpu_name = gpu_name[8:]
+
+                        result.append({
+                            'idx': idx,
+                            'gpu_name': gpu_name,
+                            'total_mem': total_mem,
+                            'used_mem': used_mem,
+                            'free_mem': free_mem,
+                            'util_gpu': util_gpu,
+                            'util_mem': util_mem,
+                            'temperature': temperature
+                        })
+
+                    # locked = False
+                    with data_list_lock:
+                        # locked = True
+                        shared_data_list[server_idx]['info_list'] = result
+                        shared_data_list[server_idx]['updated'] = True
+                    # locked = False
+                except:
+                    shared_data_list[server_idx].pop('info_list')
+
+                time.sleep(interval)
+
+            # 关闭连接
+            client.close()
+        except Exception as e:
+            # if data_list_lock.locked and locked:
+            #     data_list_lock.release()
+            # print(e)
+            shared_data_list[server_idx]['err_info'] = f'retry:{re_try_count}, {e}'
+        time.sleep(re_connect_time)
+        re_try_count += 1
 
 def realtime(args):
     global run_realtime