add scan retries to getting data

miners/btminer.py

@@ -2,6 +2,7 @@ from API.btminer import BTMinerAPI
 from miners import BaseMiner
 from API import APIError
 import logging
+from settings import MINER_FACTORY_GET_VERSION_RETRIES as DATA_RETRIES
 
 
 class BTMiner(BaseMiner):
@@ -98,8 +99,12 @@ class BTMiner(BaseMiner):
 
         if hostname:
             data["Hostname"] = hostname
+        miner_data = None
+        for i in range(DATA_RETRIES):
+            miner_data = await self.api.multicommand("summary", "devs", "pools")
+            if miner_data:
+                break
 
-        miner_data = await self.api.multicommand("summary", "devs", "pools")
         if not miner_data:
             return data