Define CACHE_SIZE_FACTOR once

1 files changed, 1 insertions, 5 deletions

diff --git a/synapse/util/caches/stream_change_cache.py b/synapse/util/caches/stream_change_cache.py

index 609625b322..941d873ab8 100644
--- a/synapse/util/caches/stream_change_cache.py
+++ b/synapse/util/caches/stream_change_cache.py
@@ -13,20 +13,16 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from synapse.util.caches import register_cache
+from synapse.util.caches import register_cache, CACHE_SIZE_FACTOR
 
 
 from blist import sorteddict
 import logging
-import os
 
 
 logger = logging.getLogger(__name__)
 
 
-CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.1))
-
-
 class StreamChangeCache(object):
     """Keeps track of the stream positions of the latest change in a set of entities.