Summary

The jruby-auth Evergreen variant (ruby-jruby-9.4, auth-and-ssl, ubuntu2204) fails wholesale with thousands of test failures driven by Mongo::Error::SocketError: Errno::EBADF: Bad file descriptor on TLS connections. Reproduced on patch 69e630cd4f9fc800077dd8ea (4411 failed tests of 24286).

Observed

Sample log lines:

W, MONGODB | Error running awaited hello on localhost:27018: Mongo::Error::SocketError: Errno::EBADF: Bad file descriptor - No message available (for 127.0.0.1:27018 (localhost:27018, TLS)) (on localhost:27018)

Failures cascade across unrelated specs (spec/mongo/auth/user/view_spec.rb, etc.) because TLS socket establishment fails reliably.

Likely cause

Known jruby-openssl compatibility issues (see comments in .evergreen/config/standard.yml.erb around the OCSP variants) suggest a jruby + TLS + recent jruby-openssl version incompatibility. Not investigated in depth.

Action taken

The jruby-auth matrix is disabled in .evergreen/config/standard.yml.erb as a quick mitigation — other jruby variants (non-auth / non-TLS) keep running.

Next steps

• Investigate jruby + TLS stack; try a different jruby-openssl version, or MRI-only for auth+ssl.
• Decide whether to restore jruby-auth or permanently drop it from the matrix.