I am using 1.11.2 version of docker in swarm on my rhel 7.2 corporate machines. I am using devicemapper as the storage driver. It behaves “strange” once overall number of images and containers is over ~1000 and operations such as ‘docker pull’ hang indifinetely until I kill them manually. When I decrease the number of containers and images new operations run smoothly. On my logical volume I have enough space so this is not directly space related.
Are there any known limitations of devicemapper on RHEL or on linux in general? Have you faced some issues with large number of images and/or containers in case of devicemapper’s usage?