[3.11] gh-101225: Increase the socket backlog when creating a multiprocessing.connection.Listener (GH-113567) (#114019)

gh-101225: Increase the socket backlog when creating a multiprocessing.connection.Listener (GH-113567)

Increase the backlog for multiprocessing.connection.Listener` objects created
 by `multiprocessing.manager` and `multiprocessing.resource_sharer` to
 significantly reduce the risk of getting a connection refused error when creating
 a `multiprocessing.connection.Connection` to them.
(cherry picked from commit c7d59bd8cf)

Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
This commit is contained in:
Miss Islington (bot) 2024-01-14 16:29:30 +01:00 committed by GitHub
parent 0d12a64eaf
commit 6fa6a61805
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3 changed files with 6 additions and 2 deletions

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@ -123,7 +123,7 @@ class _ResourceSharer(object):
from .connection import Listener
assert self._listener is None, "Already have Listener"
util.debug('starting listener and thread for sending handles')
self._listener = Listener(authkey=process.current_process().authkey)
self._listener = Listener(authkey=process.current_process().authkey, backlog=128)
self._address = self._listener.address
t = threading.Thread(target=self._serve)
t.daemon = True