diff --git a/app/models/ci/pipeline.rb b/app/models/ci/pipeline.rb
index 49dec770096..5e88ba0c170 100644
--- a/app/models/ci/pipeline.rb
+++ b/app/models/ci/pipeline.rb
@@ -7,7 +7,9 @@ module Ci
 
     belongs_to :project
     belongs_to :user
+    belongs_to :auto_canceled_by, class_name: 'Ci::Pipeline'
 
+    has_many :auto_canceled_pipelines, class_name: 'Ci::Pipeline', foreign_key: 'auto_canceled_by_id'
     has_many :statuses, class_name: 'CommitStatus', foreign_key: :commit_id
     has_many :builds, foreign_key: :commit_id
     has_many :trigger_requests, dependent: :destroy, foreign_key: :commit_id
diff --git a/app/services/ci/create_pipeline_service.rb b/app/services/ci/create_pipeline_service.rb
index 2f5ffddb12e..f944c869922 100644
--- a/app/services/ci/create_pipeline_service.rb
+++ b/app/services/ci/create_pipeline_service.rb
@@ -69,7 +69,7 @@ module Ci
       Gitlab::OptimisticLocking.retry_lock(auto_cancelable_pipelines) do |cancelables|
         cancelables.find_each do |cancelable|
           cancelable.cancel_running
-          cancelable.update_attributes(auto_canceled_by: pipeline.id)
+          cancelable.update_attributes(auto_canceled_by_id: pipeline.id)
         end
       end
     end
diff --git a/db/migrate/20170312114329_add_auto_canceled_by_to_pipeline.rb b/db/migrate/20170312114329_add_auto_canceled_by_id_to_pipeline.rb
similarity index 71%
rename from db/migrate/20170312114329_add_auto_canceled_by_to_pipeline.rb
rename to db/migrate/20170312114329_add_auto_canceled_by_id_to_pipeline.rb
index 344b83fa253..5549a4199b2 100644
--- a/db/migrate/20170312114329_add_auto_canceled_by_to_pipeline.rb
+++ b/db/migrate/20170312114329_add_auto_canceled_by_id_to_pipeline.rb
@@ -1,7 +1,7 @@
 # See http://doc.gitlab.com/ce/development/migration_style_guide.html
 # for more information on how to write migrations for GitLab.
 
-class AddAutoCanceledByToPipeline < ActiveRecord::Migration
+class AddAutoCanceledByIdToPipeline < ActiveRecord::Migration
   include Gitlab::Database::MigrationHelpers
 
   # Set this constant to true if this migration requires downtime.
@@ -21,9 +21,15 @@ class AddAutoCanceledByToPipeline < ActiveRecord::Migration
   #
   # To disable transactions uncomment the following line and remove these
   # comments:
-  # disable_ddl_transaction!
+  disable_ddl_transaction!
 
-  def change
-    add_column :ci_commits, :auto_canceled_by, :integer
+  def up
+    add_column :ci_pipelines, :auto_canceled_by_id, :integer
+    add_concurrent_foreign_key :ci_pipelines, :ci_pipelines, column: :auto_canceled_by_id, on_delete: 'set null'
+  end
+
+  def down
+    remove_foreign_key :ci_pipelines, column: :auto_canceled_by_id
+    remove_column :ci_pipelines, :auto_canceled_by_id
   end
 end
diff --git a/db/schema.rb b/db/schema.rb
index 3ec5b08ac40..9481250e81d 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -61,7 +61,6 @@ ActiveRecord::Schema.define(version: 20170402231018) do
     t.boolean "shared_runners_enabled", default: true, null: false
     t.integer "max_artifacts_size", default: 100, null: false
     t.string "runners_registration_token"
-    t.integer "max_pages_size", default: 100, null: false
     t.boolean "require_two_factor_authentication", default: false
     t.integer "two_factor_grace_period", default: 48
     t.boolean "metrics_enabled", default: false
@@ -99,17 +98,18 @@ ActiveRecord::Schema.define(version: 20170402231018) do
     t.text "help_page_text_html"
     t.text "shared_runners_text_html"
     t.text "after_sign_up_text_html"
+    t.boolean "sidekiq_throttling_enabled", default: false
+    t.string "sidekiq_throttling_queues"
+    t.decimal "sidekiq_throttling_factor"
     t.boolean "housekeeping_enabled", default: true, null: false
     t.boolean "housekeeping_bitmaps_enabled", default: true, null: false
     t.integer "housekeeping_incremental_repack_period", default: 10, null: false
     t.integer "housekeeping_full_repack_period", default: 50, null: false
     t.integer "housekeeping_gc_period", default: 200, null: false
-    t.boolean "sidekiq_throttling_enabled", default: false
-    t.string "sidekiq_throttling_queues"
-    t.decimal "sidekiq_throttling_factor"
     t.boolean "html_emails_enabled", default: true
     t.string "plantuml_url"
     t.boolean "plantuml_enabled"
+    t.integer "max_pages_size", default: 100, null: false
     t.integer "terminal_max_session_time", default: 0, null: false
     t.string "default_artifacts_expire_in", default: "0", null: false
     t.integer "unique_ips_limit_per_user"
@@ -251,7 +251,7 @@ ActiveRecord::Schema.define(version: 20170402231018) do
     t.integer "duration"
     t.integer "user_id"
     t.integer "lock_version"
-    t.integer "auto_canceled_by"
+    t.integer "auto_canceled_by_id"
   end
 
   add_index "ci_pipelines", ["project_id", "ref", "status"], name: "index_ci_pipelines_on_project_id_and_ref_and_status", using: :btree
@@ -688,10 +688,10 @@ ActiveRecord::Schema.define(version: 20170402231018) do
     t.string "avatar"
     t.boolean "share_with_group_lock", default: false
     t.integer "visibility_level", default: 20, null: false
-    t.datetime "deleted_at"
     t.boolean "request_access_enabled", default: false, null: false
-    t.text "description_html"
+    t.datetime "deleted_at"
     t.boolean "lfs_enabled"
+    t.text "description_html"
     t.integer "parent_id"
   end
 
@@ -920,8 +920,8 @@ ActiveRecord::Schema.define(version: 20170402231018) do
     t.boolean "lfs_enabled"
     t.text "description_html"
     t.boolean "only_allow_merge_if_all_discussions_are_resolved"
-    t.boolean "printing_merge_request_link_enabled", default: true, null: false
     t.integer "auto_cancel_pending_pipelines", default: 0, null: false
+    t.boolean "printing_merge_request_link_enabled", default: true, null: false
   end
 
   add_index "projects", ["ci_id"], name: "index_projects_on_ci_id", using: :btree
@@ -1241,10 +1241,10 @@ ActiveRecord::Schema.define(version: 20170402231018) do
     t.boolean "hide_project_limit", default: false
     t.string "unlock_token"
     t.datetime "otp_grace_period_started_at"
-    t.string "incoming_email_token"
     t.boolean "ldap_email", default: false, null: false
     t.boolean "external", default: false
     t.string "organization"
+    t.string "incoming_email_token"
     t.boolean "authorized_projects_populated"
     t.boolean "ghost"
     t.boolean "notified_of_own_activity"
@@ -1299,6 +1299,7 @@ ActiveRecord::Schema.define(version: 20170402231018) do
 
   add_foreign_key "boards", "projects"
   add_foreign_key "chat_teams", "namespaces", on_delete: :cascade
+  add_foreign_key "ci_pipelines", "ci_pipelines", column: "auto_canceled_by_id", name: "fk_262d4c2d19", on_delete: :nullify
   add_foreign_key "ci_triggers", "users", column: "owner_id", name: "fk_e8e10d1964", on_delete: :cascade
   add_foreign_key "issue_metrics", "issues", on_delete: :cascade
   add_foreign_key "label_priorities", "labels", on_delete: :cascade
diff --git a/spec/services/ci/create_pipeline_service_spec.rb b/spec/services/ci/create_pipeline_service_spec.rb
index a61c17c66f1..4c23a371484 100644
--- a/spec/services/ci/create_pipeline_service_spec.rb
+++ b/spec/services/ci/create_pipeline_service_spec.rb
@@ -52,14 +52,14 @@ describe Ci::CreatePipelineService, services: true do
           previous_pipeline = pipeline_on_previous_commit
 
           expect(pipeline.reload)
-            .to have_attributes(status: 'pending', auto_canceled_by: nil)
+            .to have_attributes(status: 'pending', auto_canceled_by_id: nil)
         end
 
         it 'auto cancel pending non-HEAD pipelines' do
           pending_pipeline = pipeline_on_previous_commit
           pipeline
 
-          expect(pending_pipeline.reload).to have_attributes(status: 'canceled', auto_canceled_by: pipeline.id)
+          expect(pending_pipeline.reload).to have_attributes(status: 'canceled', auto_canceled_by_id: pipeline.id)
         end
 
         it 'does not cancel running outdated pipelines' do
@@ -67,7 +67,7 @@ describe Ci::CreatePipelineService, services: true do
           running_pipeline.run
           execute_service
 
-          expect(running_pipeline.reload).to have_attributes(status: 'running', auto_canceled_by: nil)
+          expect(running_pipeline.reload).to have_attributes(status: 'running', auto_canceled_by_id: nil)
         end
 
         it 'cancel created outdated pipelines' do
@@ -75,7 +75,7 @@ describe Ci::CreatePipelineService, services: true do
           created_pipeline.update(status: 'created')
           pipeline
 
-          expect(created_pipeline.reload).to have_attributes(status: 'canceled', auto_canceled_by: pipeline.id)
+          expect(created_pipeline.reload).to have_attributes(status: 'canceled', auto_canceled_by_id: pipeline.id)
         end
 
         it 'does not cancel pipelines from the other branches' do
@@ -85,7 +85,7 @@ describe Ci::CreatePipelineService, services: true do
           )
           pipeline
 
-          expect(pending_pipeline.reload).to have_attributes(status: 'pending', auto_canceled_by: nil)
+          expect(pending_pipeline.reload).to have_attributes(status: 'pending', auto_canceled_by_id: nil)
         end
       end
     end