The GitHub Actions job "Build Images" on airflow.git has failed.
Run started by GitHub user potiuk (triggered by potiuk).

Head commit for run:
54aad2b4596473e7f76d6b963588df62b625b72d / Jarek Potiuk <[email protected]>
Remove custom signal handling in Triggerer

There is a bug in CPython (fixed in March 2022 but not yet released) that
makes async.io handle SIGTERM improperly by using async unsafe
functions and hanging the triggerer receive SIGPIPE while handling
SIGTERN/SIGINT and deadlocking itself. Until the bug is handled
we should rather rely on standard handling of the signals rather than
adding our own signal handlers. Seems that even if our signal handler
just run exit(0) - it caused a race condition that led to the hanging.

Fixes: #19260

Report URL: https://github.com/apache/airflow/actions/runs/2229634985

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