Description of problem: Durring a partial refresh of an openstack provider Version-Release number of selected component (if applicable): 5.8.3 How reproducible: all the time (customer env) Steps to Reproduce: 1. the engine performs a partial refresh of the provider 2. 3. Actual results: [----] E, [2018-04-27T03:16:58.853900 #31895:b09140] ERROR -- : MIQ(ManageIQ::Providers::Openstack::CloudManager::Refresher#refresh) EMS: [delta2_overcloud], id: [102000000000005] Refresh failed [----] E, [2018-04-27T03:16:58.854081 #31895:b09140] ERROR -- : [ActiveRecord::ValueTooLong]: PG::StringDataRightTruncation: ERROR: value too long for type character varying(2000) : UPDATE "relationships" SET "ancestry" = $1, "updated_at" = $2 WHERE "relationships"."id" = $3 Method:[rescue in block in refresh] [----] E, [2018-04-27T03:16:58.854177 #31895:b09140] ERROR -- : /opt/rh/cfme-gemset/gems/activerecord-5.0.3/lib/active_record/connection_adapters/postgresql_adapter.rb:598:in `async_exec' /opt/rh/cfme-gemset/gems/activerecord-5.0.3/lib/active_record/connection_adapters/postgresql_adapter.rb:598:in `block in exec_no_cache' /opt/rh/cfme-gemset/gems/activerecord-5.0.3/lib/active_record/connection_adapters/abstract_adapter.rb:590:in `block in log' /opt/rh/cfme-gemset/gems/activesupport-5.0.3/lib/active_support/notifications/instrumenter.rb:21:in `instrument' /opt/rh/cfme-gemset/gems/activerecord-5.0.3/lib/active_record/connection_adapters/abstract_adapter.rb:583:in `log' /opt/rh/cfme-gemset/gems/activerecord-5.0.3/lib/active_record/connection_adapters/postgresql_adapter.rb:598:in `exec_no_cache' /opt/rh/cfme-gemset/gems/activerecord-5.0.3/lib/active_record/connection_adapters/postgresql_adapter.rb:587:in `execute_and_clear' /opt/rh/cfme-gemset/gems/activerecord-5.0.3/lib/active_record/connection_adapters/postgresql/database_statements.rb:116:in `exec_delete' /opt/rh/cfme-gemset/gems/activerecord-5.0.3/lib/active_record/connection_adapters/abstract/database_statements.rb:133:in `update' /opt/rh/cfme-gemset/gems/activerecord-5.0.3/lib/active_record/connection_adapters/abstract/query_cache.rb:17:in `update' /opt/rh/cfme-gemset/gems/activerecord-5.0.3/lib/active_record/relation.rb:89:in `_update_record' /opt/rh/cfme-gemset/gems/activerecord-5.0.3/lib/active_record/persistence.rb:559:in `_update_record' Expected results: the update passes Additional info: there are also memory issues with the refresh worker in the environment.