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I have a docker container setup using a MEAN stack and my disk usage is increasing really quickly. I have a 30gb droplet on digital ocean and am at 93% disk usage, up from 67% 3 days ago and I have not installed anything since then, just loaded a few thousand database records.

I probably have 20k or 30k documents in my database, but they are not very large, but my disk usage increases by about 5% every day. A much larger data set storing the same data was in postgres prior to this and I never had issues with storage space and I was on a 20g droplet before I was forced to increase after deploying my mongo application.

I deleted most of my old images and non-running containers. running docker ps -s yields the following:

My main web container shows 8.456 kB (virtual 817.4 MB)

My mongo container shows 0 B (virtual 314.4 MB)

Filesize from images with docker images
VIRTUAL SIZE
848 MB
643 MB
743.6 MB
317 MB
636.7 MB

Filesystem use with df:
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/vda1 30830588 26957740 2283712 93% /

Docker copmose command to start mongo:
command: mongod --dbpath /data/db --smallfiles --quiet --logpath=/dev/null

I ran: sudo du -h / | grep -P '^[0-9\.]+G'
2.1G /var/lib/docker/aufs/diff
1.3G /var/lib/docker/aufs/mnt
3.4G /var/lib/docker/aufs
16G /var/lib/docker/containers/9fab4a607a0155bd61b2b73...5399e
16G /var/lib/docker/containers
20G /var/lib/docker
21G /var/lib
21G /var

Is mongo really this big of a data hog, or am I (hopefully) missing something?

Austin Turner
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  • Possible duplicate of [disk space is full by \`vda\` files, how to clear them?](https://stackoverflow.com/questions/25713773/disk-space-is-full-by-vda-files-how-to-clear-them) – T.Todua Jun 26 '19 at 09:55

1 Answers1

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I figured out my issue. I had a 20gb log file from the docker container!

I guess I will be exploring options to limit this based no the docs https://docs.docker.com/engine/admin/logging/overview/

Austin Turner
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