message: [druid] Catch IOError when fetching Druid datasource time boundary
diff: @@ -564,11 +564,15 @@ class DruidDatasource(Model, BaseDatasource):
  """Returns segment metadata from the latest segment"""
  logging.info('Syncing datasource [{}]'.format(self.datasource_name))
  client = self.cluster.get_pydruid_client()
  + try:
  results = client.time_boundary(datasource=self.datasource_name)
  - if not results:
  - return
  + except IOError:
  + results = None
  + if results:
  max_time = results[0]['result']['maxTime']
  max_time = dparse(max_time)
  + else:
  + max_time = datetime.now()
  # Query segmentMetadata for 7 days back. However, due to a bug,
  # we need to set this interval to more than 1 day ago to exclude
  # realtime segments, which triggered a bug (fixed in druid 0.8.2).
  