Logging improvements for the pusher (#4691)

changelog.d/4691.misc

@@ -0,0 +1 @@
+Improve the logging in the pusher process.

synapse/push/httppusher.py

@@ -333,10 +333,10 @@ class HttpPusher(object):
             defer.returnValue([])
         try:
             resp = yield self.http_client.post_json_get_json(self.url, notification_dict)
-        except Exception:
-            logger.warn(
-                "Failed to push event %s to %s",
-                event.event_id, self.name, exc_info=True,
+        except Exception as e:
+            logger.warning(
+                "Failed to push event %s to %s: %s %s",
+                event.event_id, self.name, type(e), e,
             )
             defer.returnValue(False)
         rejected = []
@@ -367,10 +367,10 @@ class HttpPusher(object):
         }
         try:
             resp = yield self.http_client.post_json_get_json(self.url, d)
-        except Exception:
-            logger.warn(
-                "Failed to send badge count to %s",
-                self.name, exc_info=True,
+        except Exception as e:
+            logger.warning(
+                "Failed to send badge count to %s: %s %s",
+                self.name, type(e), e,
             )
             defer.returnValue(False)
         rejected = []

synapse/push/pusher.py

@@ -52,11 +52,12 @@ class PusherFactory(object):
             logger.info("defined email pusher type")
 
     def create_pusher(self, pusherdict):
-        logger.info("trying to create_pusher for %r", pusherdict)
-
-        if pusherdict['kind'] in self.pusher_types:
-            logger.info("found pusher")
-            return self.pusher_types[pusherdict['kind']](self.hs, pusherdict)
+        kind = pusherdict['kind']
+        f = self.pusher_types.get(kind, None)
+        if not f:
+            return None
+        logger.info("creating %s pusher for %r", kind, pusherdict)
+        return f(self.hs, pusherdict)
 
     def _create_email_pusher(self, _hs, pusherdict):
         app_name = self._app_name_from_pusherdict(pusherdict)