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-rw-r--r--synapse/app/_base.py93
1 files changed, 84 insertions, 9 deletions
diff --git a/synapse/app/_base.py b/synapse/app/_base.py

index 923891ae0d..a5aa2185a2 100644 --- a/synapse/app/_base.py +++ b/synapse/app/_base.py
@@ -47,6 +47,7 @@ from twisted.internet.tcp import Port from twisted.logger import LoggingFile, LogLevel from twisted.protocols.tls import TLSMemoryBIOFactory from twisted.python.threadpool import ThreadPool +from twisted.web.resource import Resource import synapse.util.caches from synapse.api.constants import MAX_PDU_SIZE @@ -55,12 +56,13 @@ from synapse.app.phone_stats_home import start_phone_stats_home from synapse.config import ConfigError from synapse.config._base import format_config_error from synapse.config.homeserver import HomeServerConfig -from synapse.config.server import ManholeConfig +from synapse.config.server import ListenerConfig, ManholeConfig from synapse.crypto import context_factory from synapse.events.presence_router import load_legacy_presence_router from synapse.events.spamcheck import load_legacy_spam_checkers from synapse.events.third_party_rules import load_legacy_third_party_event_rules from synapse.handlers.auth import load_legacy_password_auth_providers +from synapse.http.site import SynapseSite from synapse.logging.context import PreserveLoggingContext from synapse.logging.opentracing import init_tracer from synapse.metrics import install_gc_manager, register_threadpool @@ -98,9 +100,7 @@ def register_sighup(func: Callable[P, None], *args: P.args, **kwargs: P.kwargs) func: Function to be called when sent a SIGHUP signal. *args, **kwargs: args and kwargs to be passed to the target function. """ - # This type-ignore should be redundant once we use a mypy release with - # https://github.com/python/mypy/pull/12668. - _sighup_callbacks.append((func, args, kwargs)) # type: ignore[arg-type] + _sighup_callbacks.append((func, args, kwargs)) def start_worker_reactor( @@ -270,11 +270,36 @@ def listen_metrics(bind_addresses: Iterable[str], port: int) -> None: """ Start Prometheus metrics server. """ - from synapse.metrics import RegistryProxy, start_http_server + from prometheus_client import start_http_server as start_http_server_prometheus + + from synapse.metrics import RegistryProxy for host in bind_addresses: logger.info("Starting metrics listener on %s:%d", host, port) - start_http_server(port, addr=host, registry=RegistryProxy) + _set_prometheus_client_use_created_metrics(False) + start_http_server_prometheus(port, addr=host, registry=RegistryProxy) + + +def _set_prometheus_client_use_created_metrics(new_value: bool) -> None: + """ + Sets whether prometheus_client should expose `_created`-suffixed metrics for + all gauges, histograms and summaries. + There is no programmatic way to disable this without poking at internals; + the proper way is to use an environment variable which prometheus_client + loads at import time. + + The motivation for disabling these `_created` metrics is that they're + a waste of space as they're not useful but they take up space in Prometheus. + """ + + import prometheus_client.metrics + + if hasattr(prometheus_client.metrics, "_use_created"): + prometheus_client.metrics._use_created = new_value + else: + logger.error( + "Can't disable `_created` metrics in prometheus_client (brittle hack broken?)" + ) def listen_manhole( @@ -326,6 +351,55 @@ def listen_tcp( return r # type: ignore[return-value] +def listen_http( + listener_config: ListenerConfig, + root_resource: Resource, + version_string: str, + max_request_body_size: int, + context_factory: Optional[IOpenSSLContextFactory], + reactor: ISynapseReactor = reactor, +) -> List[Port]: + port = listener_config.port + bind_addresses = listener_config.bind_addresses + tls = listener_config.tls + + assert listener_config.http_options is not None + + site_tag = listener_config.http_options.tag + if site_tag is None: + site_tag = str(port) + + site = SynapseSite( + "synapse.access.%s.%s" % ("https" if tls else "http", site_tag), + site_tag, + listener_config, + root_resource, + version_string, + max_request_body_size=max_request_body_size, + reactor=reactor, + ) + if tls: + # refresh_certificate should have been called before this. + assert context_factory is not None + ports = listen_ssl( + bind_addresses, + port, + site, + context_factory, + reactor=reactor, + ) + logger.info("Synapse now listening on TCP port %d (TLS)", port) + else: + ports = listen_tcp( + bind_addresses, + port, + site, + reactor=reactor, + ) + logger.info("Synapse now listening on TCP port %d", port) + return ports + + def listen_ssl( bind_addresses: Collection[str], port: int, @@ -478,9 +552,10 @@ async def start(hs: "HomeServer") -> None: setup_sentry(hs) setup_sdnotify(hs) - # If background tasks are running on the main process, start collecting the - # phone home stats. + # If background tasks are running on the main process or this is the worker in + # charge of them, start collecting the phone home stats and shared usage metrics. if hs.config.worker.run_background_tasks: + await hs.get_common_usage_metrics_manager().setup() start_phone_stats_home(hs) # We now freeze all allocated objects in the hopes that (almost) @@ -526,7 +601,7 @@ def reload_cache_config(config: HomeServerConfig) -> None: logger.warning(f) else: logger.debug( - "New cache config. Was:\n %s\nNow:\n", + "New cache config. Was:\n %s\nNow:\n %s", previous_cache_config.__dict__, config.caches.__dict__, )