diff options
Diffstat (limited to 'synapse/app')
| -rw-r--r-- | synapse/app/_base.py | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/synapse/app/_base.py b/synapse/app/_base.py index 2ca2e051e4..03627cdcba 100644 --- a/synapse/app/_base.py +++ b/synapse/app/_base.py @@ -31,6 +31,7 @@ import twisted from twisted.internet import defer, error, reactor from twisted.logger import LoggingFile, LogLevel from twisted.protocols.tls import TLSMemoryBIOFactory +from twisted.python.threadpool import ThreadPool import synapse from synapse.api.constants import MAX_PDU_SIZE @@ -48,6 +49,7 @@ from synapse.metrics.background_process_metrics import wrap_as_background_proces from synapse.metrics.jemalloc import setup_jemalloc_stats from synapse.util.caches.lrucache import setup_expire_lru_cache_entries from synapse.util.daemonize import daemonize_process +from synapse.util.gai_resolver import GAIResolver from synapse.util.rlimit import change_resource_limit from synapse.util.versionstring import get_version_string @@ -338,9 +340,18 @@ async def start(hs: "HomeServer"): Args: hs: homeserver instance """ + reactor = hs.get_reactor() + + # We want to use a separate thread pool for the resolver so that large + # numbers of DNS requests don't starve out other users of the threadpool. + resolver_threadpool = ThreadPool(name="gai_resolver") + resolver_threadpool.start() + reactor.installNameResolver( + GAIResolver(reactor, getThreadPool=lambda: resolver_threadpool) + ) + # Set up the SIGHUP machinery. if hasattr(signal, "SIGHUP"): - reactor = hs.get_reactor() @wrap_as_background_process("sighup") def handle_sighup(*args, **kwargs): |