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Merge pull request #1725 from matrix-org/erikj/timeout_conn
Wrap connections in an N minute timeout to ensure they get reaped correctly
This commit is contained in:
commit
828c58522e
2 changed files with 70 additions and 7 deletions
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@ -14,7 +14,7 @@
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# limitations under the License.
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from twisted.internet.endpoints import SSL4ClientEndpoint, TCP4ClientEndpoint
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from twisted.internet import defer
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from twisted.internet import defer, reactor
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from twisted.internet.error import ConnectError
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from twisted.names import client, dns
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from twisted.names.error import DNSNameError, DomainError
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@ -66,13 +66,75 @@ def matrix_federation_endpoint(reactor, destination, ssl_context_factory=None,
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default_port = 8448
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if port is None:
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return SRVClientEndpoint(
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return _WrappingEndpointFac(SRVClientEndpoint(
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reactor, "matrix", domain, protocol="tcp",
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default_port=default_port, endpoint=transport_endpoint,
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endpoint_kw_args=endpoint_kw_args
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)
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))
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else:
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return transport_endpoint(reactor, domain, port, **endpoint_kw_args)
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return _WrappingEndpointFac(transport_endpoint(
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reactor, domain, port, **endpoint_kw_args
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))
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class _WrappingEndpointFac(object):
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def __init__(self, endpoint_fac):
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self.endpoint_fac = endpoint_fac
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@defer.inlineCallbacks
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def connect(self, protocolFactory):
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conn = yield self.endpoint_fac.connect(protocolFactory)
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conn = _WrappedConnection(conn)
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defer.returnValue(conn)
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class _WrappedConnection(object):
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"""Wraps a connection and calls abort on it if it hasn't seen any action
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for 2.5-3 minutes.
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"""
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__slots__ = ["conn", "last_request"]
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def __init__(self, conn):
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object.__setattr__(self, "conn", conn)
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object.__setattr__(self, "last_request", time.time())
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def __getattr__(self, name):
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return getattr(self.conn, name)
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def __setattr__(self, name, value):
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setattr(self.conn, name, value)
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def _time_things_out_maybe(self):
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# We use a slightly shorter timeout here just in case the callLater is
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# triggered early. Paranoia ftw.
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# TODO: Cancel the previous callLater rather than comparing time.time()?
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if time.time() - self.last_request >= 2.5 * 60:
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self.abort()
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# Abort the underlying TLS connection. The abort() method calls
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# loseConnection() on the underlying TLS connection which tries to
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# shutdown the connection cleanly. We call abortConnection()
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# since that will promptly close the underlying TCP connection.
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self.transport.abortConnection()
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def request(self, request):
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self.last_request = time.time()
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# Time this connection out if we haven't send a request in the last
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# N minutes
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# TODO: Cancel the previous callLater?
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reactor.callLater(3 * 60, self._time_things_out_maybe)
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d = self.conn.request(request)
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def update_request_time(res):
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self.last_request = time.time()
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# TODO: Cancel the previous callLater?
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reactor.callLater(3 * 60, self._time_things_out_maybe)
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return res
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d.addCallback(update_request_time)
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return d
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class SpiderEndpoint(object):
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@ -88,7 +88,8 @@ class MatrixFederationHttpClient(object):
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self.signing_key = hs.config.signing_key[0]
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self.server_name = hs.hostname
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pool = HTTPConnectionPool(reactor)
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pool.maxPersistentPerHost = 10
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pool.maxPersistentPerHost = 5
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pool.cachedConnectionTimeout = 2 * 60
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self.agent = Agent.usingEndpointFactory(
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reactor, MatrixFederationEndpointFactory(hs), pool=pool
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)
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@ -299,7 +300,7 @@ class MatrixFederationHttpClient(object):
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defer.returnValue(json.loads(body))
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@defer.inlineCallbacks
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def post_json(self, destination, path, data={}, long_retries=True,
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def post_json(self, destination, path, data={}, long_retries=False,
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timeout=None):
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""" Sends the specifed json data using POST
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@ -332,7 +333,7 @@ class MatrixFederationHttpClient(object):
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path.encode("ascii"),
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body_callback=body_callback,
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headers_dict={"Content-Type": ["application/json"]},
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long_retries=True,
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long_retries=long_retries,
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timeout=timeout,
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)
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