diff --git a/synapse/app/_base.py b/synapse/app/_base.py
index cd0e815919..cf4730730d 100644
--- a/synapse/app/_base.py
+++ b/synapse/app/_base.py
@@ -12,10 +12,16 @@
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
+
import gc
import logging
+import sys
+
+try:
+ import affinity
+except:
+ affinity = None
-import affinity
from daemonize import Daemonize
from synapse.util import PreserveLoggingContext
from synapse.util.rlimit import change_resource_limit
@@ -78,6 +84,13 @@ def start_reactor(
with PreserveLoggingContext():
logger.info("Running")
if cpu_affinity is not None:
+ if not affinity:
+ quit_with_error(
+ "Missing package 'affinity' required for cpu_affinity\n"
+ "option\n\n"
+ "Install by running:\n\n"
+ " pip install affinity\n\n"
+ )
logger.info("Setting CPU affinity to %s" % cpu_affinity)
affinity.set_process_affinity_mask(0, cpu_affinity)
change_resource_limit(soft_file_limit)
@@ -97,3 +110,13 @@ def start_reactor(
daemon.start()
else:
run()
+
+
+def quit_with_error(error_string):
+ message_lines = error_string.split("\n")
+ line_length = max([len(l) for l in message_lines if len(l) < 80]) + 2
+ sys.stderr.write("*" * line_length + '\n')
+ for line in message_lines:
+ sys.stderr.write(" %s\n" % (line.rstrip(),))
+ sys.stderr.write("*" * line_length + '\n')
+ sys.exit(1)
diff --git a/synapse/app/homeserver.py b/synapse/app/homeserver.py
index 84ad8f04a0..3adf72e141 100755
--- a/synapse/app/homeserver.py
+++ b/synapse/app/homeserver.py
@@ -25,6 +25,7 @@ from synapse.api.urls import CONTENT_REPO_PREFIX, FEDERATION_PREFIX, \
LEGACY_MEDIA_PREFIX, MEDIA_PREFIX, SERVER_KEY_PREFIX, SERVER_KEY_V2_PREFIX, \
STATIC_PREFIX, WEB_CLIENT_PREFIX
from synapse.app import _base
+from synapse.app._base import quit_with_error
from synapse.config._base import ConfigError
from synapse.config.homeserver import HomeServerConfig
from synapse.crypto import context_factory
@@ -249,16 +250,6 @@ class SynapseHomeServer(HomeServer):
return db_conn
-def quit_with_error(error_string):
- message_lines = error_string.split("\n")
- line_length = max([len(l) for l in message_lines if len(l) < 80]) + 2
- sys.stderr.write("*" * line_length + '\n')
- for line in message_lines:
- sys.stderr.write(" %s\n" % (line.rstrip(),))
- sys.stderr.write("*" * line_length + '\n')
- sys.exit(1)
-
-
def setup(config_options):
"""
Args:
|