gh-142489: Increase ssl_handshake_timeout in asyncio tests

[vstinner]

Replace SHORT_TIMEOUT with LONG_TIMEOUT for very slow CIs.

• Issue: test.test_asyncio.test_ssl often times out in Fedora ELN and EPEL 10.1 #142489

[hroncok]

Thanks. I'll check if this makes a difference in ELN/EPEL builds.

[hroncok]

I submitted 5 builds each for Python 3.15.0a2 (on ELN), 3.14.2 (on ELN), and 3.13.11 (on EPEL 10.1), with this PR backported as well as 5 builds each without it.

Statistically, this improves things.

Without this patch, 7 out of the total 15 builds failed with ConnectionAbortedError: SSL handshake is taking longer than 60.0 seconds: aborting the connection or ConnectionAbortedError: SSL handshake is taking longer than 67.5 seconds: aborting the connection.

With this patch applied, only one failed with ConnectionAbortedError: SSL handshake is taking longer than 60.0 seconds: aborting the connection. It was a Python 3.13.11 build on EPEL 10.1 https://koji.fedoraproject.org/koji/taskinfo?taskID=139890933

What worries me a bit is that the exception still mentions 67.5 or 60.0 seconds. As if the SSL handshake had its own timeout set?

[vstinner]

With this patch applied, only one failed with ConnectionAbortedError: SSL handshake is taking longer than 60.0 seconds: aborting the connection. It was a Python 3.13.11 build on EPEL 10.1 https://koji.fedoraproject.org/koji/taskinfo?taskID=139890933

Hum. There were remaining open_connection() calls with the default timeout of asyncio.constants.SSL_HANDSHAKE_TIMEOUT seconds (60 seconds). I updated the PR to set the timeout to LONG_TIMEOUT instead.

What worries me a bit is that the exception still mentions 67.5 or 60.0 seconds. As if the SSL handshake had its own timeout set?

Yes, it's asyncio.constants.SSL_HANDSHAKE_TIMEOUT default value of 60 seconds.

support.LONG_TIMEOUT is a least 5 minutes.

[hroncok]

Trying again.

[miss-islington-app]

Thanks @vstinner for the PR 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14.
🐍🍒⛏🤖

[bedevere-app]

GH-142545 is a backport of this pull request to the 3.14 branch.

[bedevere-app]

GH-142546 is a backport of this pull request to the 3.13 branch.

[vstinner]

Merged, thanks for testing @hroncok. I hope that this change will make timeout errors less likely on very slow CIs.

[hroncok]

Trying again.

30 builds (10 for each Python version) and no timeout. Seems to work properly now, thanks.