Hi all, I'm trying to fix issues of spawning zombie processes for Cinder and Nova APIs during instantiation in an IaC (Ansible which is not openstack-ansible). Does someone can kindly help me to solve the issue or give me some clues like parameter changes that can be expected to be effective? - Issues The cinder api service process(port: 8776) existed in a zombie state. The neutron api service process(port: 9696) required for nova existed in a zombie state. - What the IaC does Use an existing tenant to create a network and subnet, then use 8volumes to instantiate 8VMs. - Workarounds and what I've done so far Identify and kill zombie processes. - Environment OS: CentOS Stream 8 Kernel: 4.18.0-408.el8.x86_64 OpenStack: Yoga(Deployed by PackStack: https://www.rdoproject.org/install/packstack/) Nova: 25.0.1 Neutron: 20.2.0 Cinder: 20.0.1 KeyStone: 21.0.0 -- Yukihiro Kishimoto Technologist KDDI Co., Ltd. Tokyo Japan