4 files changed, 20 insertions, 3 deletions
diff --git a/config/initializers/1_settings.rb b/config/initializers/1_settings.rb
index 9ddd1554811..0ee1b1ec634 100644
--- a/config/initializers/1_settings.rb
+++ b/config/initializers/1_settings.rb
@@ -302,7 +302,7 @@ Settings.cron_jobs['remove_expired_group_links_worker'] ||= Settingslogic.new({}
 Settings.cron_jobs['remove_expired_group_links_worker']['cron'] ||= '10 0 * * *'
 Settings.cron_jobs['remove_expired_group_links_worker']['job_class'] = 'RemoveExpiredGroupLinksWorker'
 Settings.cron_jobs['prune_old_events_worker'] ||= Settingslogic.new({})
-Settings.cron_jobs['prune_old_events_worker']['cron'] ||= '* */6 * * *'
+Settings.cron_jobs['prune_old_events_worker']['cron'] ||= '0 */6 * * *'
 Settings.cron_jobs['prune_old_events_worker']['job_class'] = 'PruneOldEventsWorker'
 
 Settings.cron_jobs['trending_projects_worker'] ||= Settingslogic.new({})
diff --git a/config/initializers/ar_monkey_patch.rb b/config/initializers/ar_monkey_patch.rb
index 0da584626ee..6979f4641b0 100644
--- a/config/initializers/ar_monkey_patch.rb
+++ b/config/initializers/ar_monkey_patch.rb
@@ -52,6 +52,23 @@ module ActiveRecord
           raise
         end
       end
+
+      # This is patched because we need it to query `lock_version IS NULL`
+      # rather than `lock_version = 0` whenever lock_version is NULL.
+      def relation_for_destroy
+        return super unless locking_enabled?
+
+        column_name = self.class.locking_column
+        super.where(self.class.arel_table[column_name].eq(self[column_name]))
+      end
+    end
+
+    # This is patched because we want `lock_version` default to `NULL`
+    # rather than `0`
+    class LockingType < SimpleDelegator
+      def type_cast_from_database(value)
+        super
+      end
     end
   end
 end
diff --git a/config/initializers/sentry.rb b/config/initializers/sentry.rb
index 4f30d1265c8..6b0cff75653 100644
--- a/config/initializers/sentry.rb
+++ b/config/initializers/sentry.rb
@@ -15,7 +15,7 @@ if Rails.env.production?
     Raven.configure do |config|
       config.dsn = current_application_settings.sentry_dsn
       config.release = Gitlab::REVISION
-      
+
       # Sanitize fields based on those sanitized from Rails.
       config.sanitize_fields = Rails.application.config.filter_parameters.map(&:to_s)
       # Sanitize authentication headers
diff --git a/config/initializers/sidekiq.rb b/config/initializers/sidekiq.rb
index b87b31d9697..1d7a3f03ace 100644
--- a/config/initializers/sidekiq.rb
+++ b/config/initializers/sidekiq.rb
@@ -61,5 +61,5 @@ begin
       end
     end
   end
-rescue Redis::BaseError, SocketError
+rescue Redis::BaseError, SocketError, Errno::ENOENT, Errno::EAFNOSUPPORT, Errno::ECONNRESET, Errno::ECONNREFUSED
 end