diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/handlers/federation.py | 31 | ||||
| -rw-r--r-- | synapse/http/endpoint.py | 13 |
2 files changed, 40 insertions, 4 deletions
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 0c68e8a472..f10b46414b 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -360,6 +360,35 @@ class FederationHandler(BaseHandler): # apparently. # # see https://github.com/matrix-org/synapse/pull/1744 + # + # ---- + # + # Update richvdh 2018/09/18: There are a number of problems with timing this + # request out agressively on the client side: + # + # - it plays badly with the server-side rate-limiter, which starts tarpitting you + # if you send too many requests at once, so you end up with the server carefully + # working through the backlog of your requests, which you have already timed + # out. + # + # - for this request in particular, we now (as of + # https://github.com/matrix-org/synapse/pull/3456) reject any PDUs where the + # server can't produce a plausible-looking set of prev_events - so we becone + # much more likely to reject the event. + # + # - contrary to what it says above, we do *not* fall back to fetching fresh state + # for the room if get_missing_events times out. Rather, we give up processing + # the PDU whose prevs we are missing, which then makes it much more likely that + # we'll end up back here for the *next* PDU in the list, which exacerbates the + # problem. + # + # - the agressive 10s timeout was introduced to deal with incoming federation + # requests taking 8 hours to process. It's not entirely clear why that was going + # on; certainly there were other issues causing traffic storms which are now + # resolved, and I think in any case we may be more sensible about our locking + # now. We're *certainly* more sensible about our logging. + # + # All that said: Let's try increasing the timout to 60s and see what happens. missing_events = yield self.federation_client.get_missing_events( origin, @@ -368,7 +397,7 @@ class FederationHandler(BaseHandler): latest_events=[pdu], limit=10, min_depth=min_depth, - timeout=10000, + timeout=60000, ) logger.info( diff --git a/synapse/http/endpoint.py b/synapse/http/endpoint.py index b0c9369519..91025037a3 100644 --- a/synapse/http/endpoint.py +++ b/synapse/http/endpoint.py @@ -108,7 +108,7 @@ def matrix_federation_endpoint(reactor, destination, tls_client_options_factory= Args: reactor: Twisted reactor. - destination (bytes): The name of the server to connect to. + destination (unicode): The name of the server to connect to. tls_client_options_factory (synapse.crypto.context_factory.ClientTLSOptionsFactory): Factory which generates TLS options for client connections. @@ -126,10 +126,17 @@ def matrix_federation_endpoint(reactor, destination, tls_client_options_factory= transport_endpoint = HostnameEndpoint default_port = 8008 else: + # the SNI string should be the same as the Host header, minus the port. + # as per https://github.com/matrix-org/synapse/issues/2525#issuecomment-336896777, + # the Host header and SNI should therefore be the server_name of the remote + # server. + tls_options = tls_client_options_factory.get_options(domain) + def transport_endpoint(reactor, host, port, timeout): return wrapClientTLS( - tls_client_options_factory.get_options(host), - HostnameEndpoint(reactor, host, port, timeout=timeout)) + tls_options, + HostnameEndpoint(reactor, host, port, timeout=timeout), + ) default_port = 8448 if port is None: |