dont end download thread if one download fails

oml/downloads.py

@@ -4,13 +4,13 @@ from __future__ import division
 
 from threading import Thread
 import time
-import logging
 
 import db
 import state
 import settings
 import update
 
+import logging
 logger = logging.getLogger('oml.downloads')
 
 class Downloads(Thread):

oml/nodes.py

@@ -298,8 +298,13 @@ class Node(Thread):
         t1 = datetime.utcnow()
         logger.debug('download %s', url)
         self._opener.addheaders = zip(headers.keys(), headers.values())
+        try:
             r = self._opener.open(url, timeout=self.TIMEOUT*2)
+        except:
+            logger.debug('openurl failed %s', url, exec_info=1)
+            return False
         if r.getcode() == 200:
+            try:
                 if r.headers.get('content-encoding', None) == 'gzip':
                     content = gzip.GzipFile(fileobj=r).read()
                 else:
@@ -325,6 +330,9 @@ class Node(Thread):
                     self.download_speed = len(content) / duration
                 logger.debug('SPEED %s', ox.format_bits(self.download_speed))
                 return item.save_file(content)
+            except:
+                logger.debug('download failed %s', url, exec_info=1)
+                return False
         else:
             logger.debug('FAILED %s', url)
             return False