[kernel] Prevent net_kernel from being blocked on connection setup #10029
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
rickard-green
added
team:VM
CT Test Results 2 files 71 suites 1h 7m 21s ⏱️ Results for commit 838d263. ♻️ This comment has been updated with latest results. To speed up review, make sure that you have read Contributing to Erlang/OTP and that all checks pass. See the TESTING and DEVELOPMENT HowTo guides for details about how to run test locally. Artifacts
// Erlang/OTP Github Action Bot |
rickard-green
force-pushed
the
rickard/net-kernel-connect-fix/ERIERL-1241/OTP-19702
branch
2 times, most recently
from
75a0a2a to
622df04
Compare
rickard-green
removed
the
testing
rickard-green
force-pushed
the
rickard/net-kernel-connect-fix/ERIERL-1241/OTP-19702
branch
from
622df04 to
888600b
Compare
rickard-green
added
the
testing
rickard-green
force-pushed
the
rickard/net-kernel-connect-fix/ERIERL-1241/OTP-19702
branch
3 times, most recently
from
6df5690 to
e27a43d
Compare
rickard-green
force-pushed
the
rickard/net-kernel-connect-fix/ERIERL-1241/OTP-19702
branch
2 times, most recently
from
89d7a9f to
68a6083
Compare
jhogberg
previously approved these changes
Jul 9, 2025
…' into rickard/net-kernel-connect-fix/ERIERL-1241/OTP-19702 * rickard/net-kernel-connect-fix/25/ERIERL-1241/OTP-19702: [kernel] Prevent net_kernel from being blocked on connection setup
rickard-green
force-pushed
the
rickard/net-kernel-connect-fix/ERIERL-1241/OTP-19702
branch
from
68a6083 to
838d263
Compare
rickard-green
added a commit
to rickard-green/otp
that referenced
this pull request
Jul 11, 2025
FD_SETSIZE increased from 64 to 1024. The change in erlang#10029 (OTP-19702) caused maximum amount of open connections for epmd to be reached for some test cases connecting a large amount of nodes at the same time. This since selection of dist module was parallelized which caused more "port please" requests to be issued in parallel to epmd.
rickard-green
force-pushed
the
rickard/net-kernel-connect-fix/ERIERL-1241/OTP-19702
branch
from
f6679d9 to
838d263
Compare
|
Hello, Could we add this fix to OTP-27.3.4.X also? Regards |
|
@nyczol Yes most likely, unless some unexpected issues pop up in testing. |
jhogberg
approved these changes
Jul 16, 2025
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
net_kernelcould be blocked for a very long time when selecting distribution module for a connection if the DNS service was slow. This prevented any new connections to be set up during that time.