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fix: share SSL context across StreamHttpClient instances to reduce memory leaks

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Each StreamHttpClient() was calling ssl.create_default_context() which
loads the full CA cert chain (~5-10KB) into memory. Under high concurrency
(100+ parallel t2t model calls) this caused significant memory growth.

Now uses a module-level singleton _SHARED_SSL_CONTEXT, created once and
reused by all instances.
This commit is contained in:
yumoqing 2026-06-27 18:33:12 +08:00
parent 6b874dc50d
commit 371fe768cb
1 changed files with 10 additions and 1 deletions
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11
appPublic/streamhttpclient.py
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@ -13,6 +13,15 @@ import os
from appPublic.log import exception, debug
use_socks5i_proxy=True
# Shared SSL context to avoid recreating on every client instance
_SHARED_SSL_CONTEXT = None
def _get_shared_ssl_context():
global _SHARED_SSL_CONTEXT
if _SHARED_SSL_CONTEXT is None:
_SHARED_SSL_CONTEXT = ssl.create_default_context(cafile=certifi.where())
return _SHARED_SSL_CONTEXT
def set_use_socks5(use_or_not):
global use_socks5_proxy
use_socks5_proxy = use_or_not
@ -42,7 +51,7 @@ class StreamHttpClient:
self.socks_urls_file = Path(f'{home}/.socksurls.txt')
self.socks5_url = socks5_url
self.socks_urls = set(self._load_socks_urls())
self.ssl_context = ssl.create_default_context(cafile=certifi.where())
self.ssl_context = _get_shared_ssl_context()
def _load_socks_urls(self):
if self.socks_urls_file.exists():