11.05.2016 · I'm running a several docker containers as Web Servers on different servers. But on one server, the size of "data" file under devicemapper folder is increasing exponentially. It has consumed 40GB of total 50GB available under 2 days. But on the other servers with same docker configuration, I didn't find any problem.
$ docker info Containers: 0 Running: 0 Paused: 0 Stopped: 0 Images: 0 Server Version: 17.03.1-ce Storage Driver: devicemapper Pool Name: docker-202:1-8413957-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: 11.8 MB Data Space Total: 107.4 GB Data Space Available: 7.44 GB …
$ sudo docker info Containers: 0 Running: 0 Paused: 0 Stopped: 0 Images: 2 Server Version: 1.11.0-rc2 Storage Driver: devicemapper Pool Name: docker-8:1-123141-pool Pool Blocksize: 65.54 kB Base Device Size: 10.74 GB Backing Filesystem: ext4 Data file: /dev/loop0 Metadata file: /dev/loop1 Data Space Used: 1.202 GB Data Space Total: 107.4 GB Data Space Available: 4.506 …
Error Initializing Docker: "devicemapper: Non existing device docker--vg-docker--pool. Problem. Docker is failing to start with the following error message.
The devicemapper driver uses block devices dedicated to Docker and operates at the block level, rather than the file level. These devices can be extended by ...
Device Mapper is a kernel-based framework that underpins many advanced volume management technologies on Linux. Docker's devicemapper storage driver leverages ...
17.04.2020 · Docker devicemapper - setup; IT Knowledge Pill. Clear, practical and simple about IT technologies for DBA and DevOps. Docker devicemapper - setup. How to change default storage driver to devicemapper? Let's find out! Posted on 17 Apr 2020 by Łukasz Bartnicki 5 mins read Tested on: Docker 18.09
06.06.2016 · A periodic docker system prune -a works for me on systems where I use devicemapper and not the LVM thinpool. The pattern I use is: I label any containers, images, etc with label "protected" if I want them to be exempt from cleanupI then periodically run docker system prune -a --filter=label!=protected (either manually or on cron with -f) ...
I keep getting alerts, every night about the same time, saying disk is <10% for $hostname (/var/lib/docker/devicemapper) I don't use docker on our App stack ...