diff --git a/discord_bot.py b/discord_bot.py
index ff0240f..d0c7ea1 100644
--- a/discord_bot.py
+++ b/discord_bot.py
@@ -1,13 +1,20 @@
 import discord
 from discord.ext import tasks
+import logging
+
 import dota
 import utils
 
-bot = discord.Bot(proxy='http://127.0.0.1:1235')
+
+logging.basicConfig(filename='/root/develop/log/dotabot.log', level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+# bot = discord.Bot(proxy='http://127.0.0.1:1235')
+bot = discord.Bot()
 
 @bot.event
 async def on_ready():
-  print(f"We have logged in as {bot.user}")
+  logger.info(f"We have logged in as {bot.user}")
 
 channel_id = 1152167937852055552
 
@@ -18,14 +25,23 @@ async def send_message(channel):
   else:
     send_message.change_interval(minutes=15)
 
-  matches = dota.get_friends_recent_matches()
+  try:
+    matches = dota.get_friends_recent_matches()
+  except:
+    return
   for match_ in matches:
     data = dota.serialize_match_for_discord(match_)
+    logger.info(f'sending match {match_.match_id}, {data}')
     await channel.send(content=data['content'], embeds=[discord.Embed.from_dict(embed) for embed in data['embeds']])
 
+@tasks.loop(minutes=1)
+async def heartbeat():
+  utils.heartbeat()
+
 @bot.event
 async def on_ready():
   channel = bot.get_channel(channel_id)
   send_message.start(channel)
+  heartbeat.start()
 
 bot.run('MTE1MjE2NTc3NDMwNDIyMzI2Mg.GEi-17.VvuIkRy_cFD9XF6wtTagY95LKEbTxKaxy-FxGw') # 这里替换成你自己的 token
diff --git a/dota.db b/dota.db
index 874cd8c..718a1e7 100644
Binary files a/dota.db and b/dota.db differ
diff --git a/dota.py b/dota.py
index 721b843..d834100 100644
--- a/dota.py
+++ b/dota.py
@@ -1,11 +1,16 @@
 import peewee
 import opendota
 import datetime
+import logging
 
 import players
 import utils
 
 
+logging.basicConfig(filename='/root/develop/log/dotabot.log', level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+
 db = peewee.SqliteDatabase('dota.db')
 hero_client = opendota.HeroesApi()
 player_client = opendota.PlayersApi()
@@ -49,7 +54,11 @@ class Match(BaseModel):
   party_size = peewee.IntegerField()
 
   def serialize_match(self):
-    match_ = match_client.get_matches_by_match_id(self.match_id)
+    try:
+      match_ = match_client.get_matches_by_match_id(self.match_id)
+    except Exception as e:
+      logger.error('fail to get match %s' % self.match_id)
+      raise e
     match_data = {
       'players': [players.serialize_player(player) for player in match_.players],
       'dire_score': match_.dire_score,
@@ -69,7 +78,11 @@ class Friend(BaseModel):
   name = peewee.CharField()
 
   def get_recent_matches(self):
-    return player_client.get_players_by_account_id_select_matches(self.steam_id, limit=1)
+    try:
+      return player_client.get_players_by_account_id_select_matches(self.steam_id, limit=1)
+    except:
+      logger.error('fail to get player %s recent matches' % self.steam_id)
+      return []
 
 
 def get_friends_recent_matches():
diff --git a/utils.py b/utils.py
index 38d6117..86290fa 100644
--- a/utils.py
+++ b/utils.py
@@ -1,5 +1,10 @@
 import datetime
 import requests
+import logging
+
+
+logging.basicConfig(filename='/root/develop/log/dotabot.log', level=logging.INFO)
+logger = logging.getLogger(__name__)
 
 def convert_seconds_to_hms(total_seconds):
   hours, remainder = divmod(total_seconds, 3600)
@@ -15,3 +20,11 @@ def is_game_time():
     return datetime.datetime.now().hour >= 21 or datetime.datetime.now().hour < 1
   else:
     return datetime.datetime.now().hour >= 10 or datetime.datetime.now().hour < 1
+
+
+def heartbeat():
+  try:
+    resp = requests.get('https://up.tunpok.com/api/push/BDb4MJWDVh?status=up&msg=OK&ping=')
+  except:
+    logger.error('fail to heartbeat, resp status: %s' % resp.status_code)
+    pass