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cloudera / clusterdock

Apache License 2.0
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clusterdock.sh helper script issue when creating container #21

Closed einarvelez closed 7 years ago

einarvelez commented 7 years ago

When trying to create the container: docker create command (line 80) fails because cannot create mount volume as file already exists. We have removed all volumes and tried again but keeps returning that error.

Could you please help us?

Thanks and regards,

dimaspivak commented 7 years ago

What hardware/OS/Docker version are you using? -- -Dima

einarvelez commented 7 years ago

Hi Dima,

This is the info, we think it could be because our server is not reaching docker.io, we have contacted the security team to check if the connection is locked because of the proxy:

CentOS Linux release 7.2.1511 (Core) NAME="CentOS Linux" VERSION="7 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="7" PRETTY_NAME="CentOS Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:7" HOME_URL="https://www.centos.org/" BUG_REPORT_URL="https://bugs.centos.org/"

CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7"

uname -r 3.10.0-327.10.1.el7.x86_64

sudo docker info Containers: 6 Running: 0 Paused: 0 Stopped: 6 Images: 6 Server Version: 1.12.5 Storage Driver: devicemapper Pool Name: docker-202:1-1216348295-pool Pool Blocksize: 65.54 kB Base Device Size: 10.74 GB Backing Filesystem: xfs Data file: /dev/loop0 Metadata file: /dev/loop1 Data Space Used: 10.15 GB Data Space Total: 107.4 GB Data Space Available: 97.23 GB Metadata Space Used: 7.094 MB Metadata Space Total: 2.147 GB Metadata Space Available: 2.14 GB Thin Pool Minimum Free Space: 10.74 GB Udev Sync Supported: true Deferred Removal Enabled: false Deferred Deletion Enabled: false Deferred Deleted Device Count: 0 Data loop file: /var/lib/docker/devicemapper/devicemapper/data WARNING: Usage of loopback devices is strongly discouraged for production use. Use --storage-opt dm.thinpooldev to specify a custom block storage device. Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata Library Version: 1.02.135-RHEL7 (2016-11-16) Logging Driver: journald Cgroup Driver: systemd Plugins: Volume: local Network: null overlay host bridge Swarm: inactive Runtimes: docker-runc runc Default Runtime: docker-runc Security Options: seccomp selinux Kernel Version: 3.10.0-327.10.1.el7.x86_64 Operating System: CentOS Linux 7 (Core) OSType: linux Architecture: x86_64 Number of Docker Hooks: 2 CPUs: 8 Total Memory: 57.81 GiB Name: ip-10-64-35-13.cm.es ID: O77A:5TI7:MCAR:6YYH:S4S5:5IKD:KIGV:IXKR:5L5U:G6HB:TSBE:RSJ4 Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false

dimaspivak commented 7 years ago

I'd actually blame devicemapper. CentOS is notoriously buggy when it comes to Docker so I'd highly recommend using Ubuntu instead. -- -Dima

einarvelez commented 7 years ago

Hi Dima,

However, despite we resolve the docker.io connectivity issue, we think we will have an issue as we did some workarounds to retrieve the image and we were having the volumen mount issue. Could it be because of the devicemapper?

Thanks

dimaspivak commented 7 years ago

Yes. Dump CentOS and use Ubuntu for Docker hosts and you'll probably never have this issue. -- -Dima

einarvelez commented 7 years ago

Thanks Dima we will try