Merge branch '323555-disable-gc-compacting-via-monkey-patch' into 'master'

Temporary disable `GC.compact` to avoid segfaults

See merge request gitlab-org/gitlab!56079

changelogs/unreleased/323555-disable-gc-compacting-via-monkey-patch.yml

+---
+title: Temporary make `GC.compact` no-op
+merge_request: 56079
+author:
+type: changed

config/initializers_before_autoloader/003_gc_compact.rb

+# frozen_string_literal: true
+
+# Be sure to restart your server when you modify this file.
+#
+# Disables `GC.compact` method via monkey-patching.
+# This is temporary measure to deal with reguarly appearing compacting issues (resulting in segfaults) in external gems.
+# Having this patch allow using `nakayoshi_fork` in `config/puma.rb`,
+# only without `GC.compact` (still invoking 4 GC cycles).
+# Refer to for details: https://github.com/puma/puma/blob/80274413b04fae77cac7a7fecab7d6e89204343b/lib/puma/util.rb#L27
+
+# rubocop:disable Rails/Output
+module NakayoshiForkCompacting
+  module MonkeyPatch
+    def compact
+      puts 'Note: GC compacting is currently disabled.'\
+        ' Refer to `config/initializers_before_autoloader/003_gc_compact.rb` for details.'
+    end
+  end
+end
+
+GC.singleton_class.prepend NakayoshiForkCompacting::MonkeyPatch