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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2024-01-14 15:29:15 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-01-14 15:29:15 (GMT) |
| commit | 2aea0e967a28aa1dc7729e28dd36dd9abf50e24b (patch) | |
| tree | 611898f714c8c9292b0770f1778290c52c630e82 | |
| parent | fa7d8e97c2a604fcd2c4f44815e83c9742ad2177 (diff) | |
| download | cpython-2aea0e967a28aa1dc7729e28dd36dd9abf50e24b.zip cpython-2aea0e967a28aa1dc7729e28dd36dd9abf50e24b.tar.gz cpython-2aea0e967a28aa1dc7729e28dd36dd9abf50e24b.tar.bz2 | |
[3.12] gh-101225: Increase the socket backlog when creating a multiprocessing.connection.Listener (GH-113567) (#114018)
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 c7d59bd8cfa053e77ae3446c82afff1fd38a4886)
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
| -rw-r--r-- | Lib/multiprocessing/managers.py | 2 | ||||
| -rw-r--r-- | Lib/multiprocessing/resource_sharer.py | 2 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Library/2023-12-29-17-46-06.gh-issue-101225.QaEyxF.rst | 4 |
3 files changed, 6 insertions, 2 deletions
diff --git a/Lib/multiprocessing/managers.py b/Lib/multiprocessing/managers.py index b653493..75d9c18 100644 --- a/Lib/multiprocessing/managers.py +++ b/Lib/multiprocessing/managers.py @@ -153,7 +153,7 @@ class Server(object): Listener, Client = listener_client[serializer] # do authentication later - self.listener = Listener(address=address, backlog=16) + self.listener = Listener(address=address, backlog=128) self.address = self.listener.address self.id_to_obj = {'0': (None, ())} diff --git a/Lib/multiprocessing/resource_sharer.py b/Lib/multiprocessing/resource_sharer.py index 6607650..b8afb0f 100644 --- a/Lib/multiprocessing/resource_sharer.py +++ b/Lib/multiprocessing/resource_sharer.py @@ -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 diff --git a/Misc/NEWS.d/next/Library/2023-12-29-17-46-06.gh-issue-101225.QaEyxF.rst b/Misc/NEWS.d/next/Library/2023-12-29-17-46-06.gh-issue-101225.QaEyxF.rst new file mode 100644 index 0000000..ab3c3a5 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2023-12-29-17-46-06.gh-issue-101225.QaEyxF.rst @@ -0,0 +1,4 @@ +Increase the backlog for :class:`multiprocessing.connection.Listener` objects created +by :mod:`multiprocessing.manager` and :mod:`multiprocessing.resource_sharer` to +significantly reduce the risk of getting a connection refused error when creating +a :class:`multiprocessing.connection.Connection` to them. |