Answering (partially) to myself. I seems issue is container_path does not exists inside container. On Docker, path is created and mounted. With pure mesos, container_path must exists.
mesos.proto says: "If the path is an absolute path, that path must already exist." This is an issue however, using Docker images, the path I want to mount does not exists, and it cannot be modified "on the fly". Is there a workaround for this ? On 05/18/2016 12:24 PM, Olivier Sallou wrote: > Hi, > I am trying unified containerizer on a single server (master/slave) on > mesos 0.28.1, to switch from docker containerizer to mesos+docker image > container. > > I have setup slave config as suggested in documentation: > > containerizers=docker,mesos > image_providers=docker \ > isolation=filesystem/linux,docker/runtime > > However, when I execute my task with a volume I have an error: > > .... > + mount -n --rbind > /tmp/mesos/provisioner/containers/2d7ea311-5e8b-440f-a3ca-a40e1b946b8e/backends/copy/rootfses/f9f66bb2-308d-4555-ba77-49ec61cbeb4f > /tmp/mesos/slaves/2a296daf-7419-4659-ade1-763c792cd522-S0/frameworks/aef1b0e3-ea2d-4770-baac-96d673ab88f9-0000/executors/51/runs/2d7ea311-5e8b-440f-a3ca-a40e1b946b8e/.rootfs > + mount -n --rbind > /home/osallou/Development/NOSAVE/go-docker/godshared/tasks/pairtree_root/us/er/_o/sa/ll/ou/task > /tmp/mesos/slaves/2a296daf-7419-4659-ade1-763c792cd522-S0/frameworks/aef1b0e3-ea2d-4770-baac-96d673ab88f9-0000/executors/51/runs/2d7ea311-5e8b-440f-a3ca-a40e1b946b8e/.rootfs/mnt/god-data > mount: mount point > /tmp/mesos/slaves/2a296daf-7419-4659-ade1-763c792cd522-S0/frameworks/aef1b0e3-ea2d-4770-baac-96d673ab88f9-0000/executors/51/runs/2d7ea311-5e8b-440f-a3ca-a40e1b946b8e/.rootfs/mnt/god-data > does not exist > Failed to execute a preparation shell command > > Then, my task switches to FAILED. > > I define a local volume to bind mount in my "container" > /home/osallou/Development/NOSAVE/go-docker/godshared/tasks/pairtree_root/us/er/_o/sa/ll/ou/task > => /mnt/god-data > My directory exists on local server. > In mesos UI, I can see the .rootfs directory along stdout and stderr > files, and inside .rootfs, I can see /mnt/god-data (empty). > > Running the same using Docker containerizer instead of mesos > containerizer (with a Docker image) works fine. > > It seems it fails to mount my local directory in the container. Any idea > of what is going wrong or how to debug this? > > > Thanks > -- Olivier Sallou IRISA / University of Rennes 1 Campus de Beaulieu, 35000 RENNES - FRANCE Tel: 02.99.84.71.95 gpg key id: 4096R/326D8438 (keyring.debian.org) Key fingerprint = 5FB4 6F83 D3B9 5204 6335 D26D 78DC 68DB 326D 8438
