1 files changed, 0 insertions, 70 deletions
diff --git a/lib/gitlab/database/advisory_locking.rb b/lib/gitlab/database/advisory_locking.rb
deleted file mode 100644
index 950898288be..00000000000
--- a/lib/gitlab/database/advisory_locking.rb
+++ /dev/null
@@ -1,70 +0,0 @@
-# An advisory lock is an application-level database lock which isn't tied
-# to a specific table or row.
-#
-# Postgres names its advisory locks with integers, while MySQL uses strings.
-# We support both here by using a `LOCK_TYPES` map of symbols to integers.
-# The symbol (stringified) is used for MySQL, and the corresponding integer
-# is used for Postgres.
-module Gitlab
-  module Database
-    class AdvisoryLocking
-      LOCK_TYPES = {
-        ghost_user: 1
-      }
-
-      def initialize(lock_type)
-        @lock_type = lock_type
-      end
-
-      def lock
-        ensure_valid_lock_type!
-
-        query =
-          if Gitlab::Database.postgresql?
-            Arel::SelectManager.new(ActiveRecord::Base).project(
-              Arel::Nodes::NamedFunction.new("pg_advisory_lock", [LOCK_TYPES[@lock_type]])
-            )
-          elsif Gitlab::Database.mysql?
-            Arel::SelectManager.new(ActiveRecord::Base).project(
-              Arel::Nodes::NamedFunction.new("get_lock", [Arel.sql("'#{@lock_type}'"), -1])
-            )
-          end
-
-        run_query(query)
-      end
-
-      def unlock
-        ensure_valid_lock_type!
-
-        query =
-          if Gitlab::Database.postgresql?
-            Arel::SelectManager.new(ActiveRecord::Base).project(
-              Arel::Nodes::NamedFunction.new("pg_advisory_unlock", [LOCK_TYPES[@lock_type]])
-            )
-          elsif Gitlab::Database.mysql?
-            Arel::SelectManager.new(ActiveRecord::Base).project(
-              Arel::Nodes::NamedFunction.new("release_lock", [Arel.sql("'#{@lock_type}'")])
-            )
-          end
-
-        run_query(query)
-      end
-
-      private
-
-      def ensure_valid_lock_type!
-        unless valid_lock_type?
-          raise RuntimeError, "Trying to use an advisory lock with an invalid lock type, #{@lock_type}."
-        end
-      end
-
-      def valid_lock_type?
-        LOCK_TYPES.keys.include?(@lock_type)
-      end
-
-      def run_query(arel_query)
-        ActiveRecord::Base.connection.execute(arel_query.to_sql)
-      end
-    end
-  end
-end