From 02ba118f81009b1c3ae290a17c35e1b9d75e802b Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <richard@matrix.org>
Date: Mon, 29 Jan 2018 14:30:15 +0000
Subject: [PATCH] Increase http conn pool size
---
synapse/http/client.py | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/synapse/http/client.py b/synapse/http/client.py
index 930d713013..f3e4973c2e 100644
--- a/synapse/http/client.py
+++ b/synapse/http/client.py
@@ -18,6 +18,7 @@ from OpenSSL.SSL import VERIFY_NONE
from synapse.api.errors import (
CodeMessageException, MatrixCodeMessageException, SynapseError, Codes,
)
+from synapse.util.caches import CACHE_SIZE_FACTOR
from synapse.util.logcontext import make_deferred_yieldable
from synapse.util import logcontext
import synapse.metrics
@@ -67,7 +68,11 @@ class SimpleHttpClient(object):
self.hs = hs
pool = HTTPConnectionPool(reactor)
- pool.maxPersistentPerHost = 5
+
+ # the pusher makes lots of concurrent SSL connections to sygnal, and
+ # tends to do so in batches, so we need to allow the pool to keep lots
+ # of idle connections around.
+ pool.maxPersistentPerHost = max((100 * CACHE_SIZE_FACTOR, 5))
pool.cachedConnectionTimeout = 2 * 60
# The default context factory in Twisted 14.0.0 (which we require) is
--
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