If the same as the earliest key, assume nothing has changed.

This commit is contained in:
Erik Johnston 2016-01-28 18:11:41 +00:00
parent 40431251cb
commit 3f5dd18bd4
1 changed files with 5 additions and 0 deletions

View File

@ -49,6 +49,11 @@ class StreamChangeCache(object):
cache_counter.inc_misses(self.name)
return True
if stream_pos == self._earliest_known_stream_pos:
# If the same as the earliest key, assume nothing has changed.
cache_counter.inc_hits(self.name)
return False
latest_entity_change_pos = self._entity_to_key.get(entity, None)
if latest_entity_change_pos is None:
cache_counter.inc_misses(self.name)