Performance improvements and refactor of Ratelimiter (#7595)

While working on https://github.com/matrix-org/synapse/issues/5665 I found myself digging into the `Ratelimiter` class and seeing that it was both:

* Rather undocumented, and
* causing a *lot* of config checks

This PR attempts to refactor and comment the `Ratelimiter` class, as well as encourage config file accesses to only be done at instantiation. 

Best to be reviewed commit-by-commit.
This commit is contained in:
Andrew Morgan 2020-06-05 10:47:20 +01:00 committed by GitHub
parent c389bfb6ea
commit f4e6495b5d
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19 changed files with 325 additions and 233 deletions

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@ -242,9 +242,12 @@ class HomeServer(object):
self.clock = Clock(reactor)
self.distributor = Distributor()
self.ratelimiter = Ratelimiter()
self.admin_redaction_ratelimiter = Ratelimiter()
self.registration_ratelimiter = Ratelimiter()
self.registration_ratelimiter = Ratelimiter(
clock=self.clock,
rate_hz=config.rc_registration.per_second,
burst_count=config.rc_registration.burst_count,
)
self.datastores = None
@ -314,15 +317,9 @@ class HomeServer(object):
def get_distributor(self):
return self.distributor
def get_ratelimiter(self):
return self.ratelimiter
def get_registration_ratelimiter(self):
def get_registration_ratelimiter(self) -> Ratelimiter:
return self.registration_ratelimiter
def get_admin_redaction_ratelimiter(self):
return self.admin_redaction_ratelimiter
def build_federation_client(self):
return FederationClient(self)