Looking at http://logs.openstack.org/24/608324/1/gate/tripleo-ci-centos-7-undercloud-oooq/0843431/logs/undercloud/var/log/mistral/executor.log.txt.gz#_2018-10-10_08_03_52_472 for comment #1 it seems also a swift error.
Looking at http:// logs.openstack. org/24/ 608324/ 1/gate/ tripleo- ci-centos- 7-undercloud- oooq/0843431/ logs/undercloud /var/log/ mistral/ executor. log.txt. gz#_2018- 10-10_08_ 03_52_472 for comment #1 it seems also a swift error.