# Disk space full after pruning **URL:** \ **Category:** General\ **Tags:** docker\ **Created:** [May 9, 2019, 3:10pm UTC](https://forums.docker.com/t/disk-space-full-after-pruning/74602 "2019-05-09T15:10:00Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![nrullo](https://sea3.discourse-cdn.com/docker/user_avatar/forums.docker.com/nrullo/32/23694_2.png) [@nrullo](https://forums.docker.com/u/nrullo)\ **Post date:** [May 9, 2019, 3:10pm UTC](https://forums.docker.com/t/disk-space-full-after-pruning/74602/1 "2019-05-09T15:10:00Z")
Hi. I’ve a problem when pruning docker. After building images, I run “docker system prune --volumes -a -f” but it’s not releasing space from “/var/lib/docker/overlay2”. See below please Before building the image, disk space & /var/lib/docker/overlay2 size: ``` ubuntu@xxx:~/tmp/app$ df -hv Filesystem Size Used Avail Use% Mounted on udev 1.9G 0 1.9G 0% /dev tmpfs 390M 5.4M 384M 2% /run /dev/nvme0n1p1 68G 20G 49G 29% / tmpfs 2.0G 8.0K 2.0G 1% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup tmpfs 390M 0 390M 0% /run/user/1000 ubuntu@xxx:~/tmp/app$ sudo du -hs /var/lib/docker/overlay2 8.0K /var/lib/docker/overlay2 ``` Building the image ``` ubuntu@xxx:~/tmp/app$ docker build -f ./Dockerfile . Sending build context to Docker daemon 1.027MB Step 1/12 : FROM mhart/alpine-node:9 as base 9: Pulling from mhart/alpine-node ff3a5c916c92: Pull complete c77918da3c72: Pull complete Digest: sha256:3c3f7e30beb78b26a602f12da483d4fa0132e6d2b625c3c1b752c8a8f0fbd359 Status: Downloaded newer image for mhart/alpine-node:9 ---> bd69a82c390b ..... .... Successfully built d56be87e90a4 ``` Sizes after image built: ``` ubuntu@xxx:~/tmp/app$ df -hv Filesystem Size Used Avail Use% Mounted on udev 1.9G 0 1.9G 0% /dev tmpfs 390M 5.4M 384M 2% /run /dev/nvme0n1p1 68G 21G 48G 30% / tmpfs 2.0G 8.0K 2.0G 1% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup tmpfs 390M 0 390M 0% /run/user/1000 ubuntu@xxx:~/tmp/app$ sudo du -hs /var/lib/docker/overlay2 3.9G /var/lib/docker/overlay2 ubuntu@xxx:~/tmp/app$ docker system prune -af --volumes Deleted Images: deleted: sha256:ef4973a39ce03d2cc3de36d8394ee221b2c23ed457ffd35f90ebb28093b40881 deleted: sha256:c3a0682422b4f388c501e29b446ed7a0448ac6d9d28a1b20e336d572ef4ec9a8 deleted: sha256:6988f1bf347999f73b7e505df6b0d40267dc58bbdccc820cdfcecdaa1cb2c274 deleted: sha256:50aaadb4b332c8c1fafbe30c20c8d6f44148cae7094e50a75f6113f27041a880 untagged: alpine:3.6 untagged: alpine@sha256:ee0c0e7b6b20b175f5ffb1bbd48b41d94891b0b1074f2721acb008aafdf25417 deleted: sha256:d56be87e90a44c42d8f1c9deb188172056727eb79521a3702e7791dfd5bfa7b6 deleted: sha256:067da84a69e4a9f8aa825c617c06e8132996eef1573b090baa52cff7546b266d deleted: sha256:72d4f65fefdf8c9f979bfb7bce56b9ba14bb9e1f7ca676e1186066686bb49291 deleted: sha256:037b7c3cb5390cbed80dfa511ed000c7cf3e48c30fb00adadbc64f724cf5523a deleted: sha256:796fd2c67a7bc4e64ebaf321b2184daa97d7a24c4976b64db6a245aa5b1a3056 deleted: sha256:7ac06e12664b627d75cd9e43ef590c54523f53b2d116135da9227225f0e2e6a8 deleted: sha256:40993237c00a6d392ca366e5eaa27fcf6f17b652a2a65f3afe33c399fff1fb44 deleted: sha256:bafcf3176fe572fb88f86752e174927f46616a7cf97f2e011f6527a5c1dd68a4 deleted: sha256:bbcc764a2c14c13ddbe14aeb98815cd4f40626e19fb2b6d18d7d85cc86b65048 deleted: sha256:c69cad93cc00af6cc39480846d9dfc3300c580253957324872014bbc6c80e263 deleted: sha256:97a19d85898cf5cba6d2e733e2128c0c3b8ae548d89336b9eea065af19eb7159 deleted: sha256:43773d1dba76c4d537b494a8454558a41729b92aa2ad0feb23521c3e58cd0440 deleted: sha256:721384ec99e56bc06202a738722bcb4b8254b9bbd71c43ab7ad0d9e773ced7ac untagged: mhart/alpine-node:9 untagged: mhart/alpine-node@sha256:3c3f7e30beb78b26a602f12da483d4fa0132e6d2b625c3c1b752c8a8f0fbd359 deleted: sha256:bd69a82c390b85bfa0c4e646b1a932d4a92c75a7f9fae147fdc92a63962130ff Total reclaimed space: 122.2MB ``` It’s releasing only 122.2 MB. Sizes after prune: ``` ubuntu@xxx:~/tmp/app$ df -hv Filesystem Size Used Avail Use% Mounted on udev 1.9G 0 1.9G 0% /dev tmpfs 390M 5.4M 384M 2% /run /dev/nvme0n1p1 68G 20G 48G 30% / tmpfs 2.0G 8.0K 2.0G 1% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup tmpfs 390M 0 390M 0% /run/user/1000 ubuntu@xxx:~/tmp/app$ sudo du -hs /var/lib/docker/overlay2 3.7G /var/lib/docker/overlay2 ``` As you can see, there are 0 containers/images: ``` ubuntu@xxx:~/tmp/app$ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ubuntu@xxx:~/tmp/app$ docker images -a REPOSITORY TAG IMAGE ID CREATED SIZE ``` But the size of “/var/lib/docker/overlay2” has only decreased from 3.9G to 3.7G. If I build more than one image, it’s increses every time. This is the dockerfile I’m building: ``` FROM mhart/alpine- node:9 as base RUN apk add --no-cache make gcc g++ python WORKDIR /app COPY package.json /app RUN npm install --silent # Only copy over the node pieces we need from the above image FROM alpine:3.6 COPY --from=base /usr/bin/node /usr/bin/ COPY --from=base /usr/lib/libgcc* /usr/lib/libstdc* /usr/lib/ WORKDIR /app COPY --from=base /app . COPY . . CMD ["node", "server.js"] ``` Why it’s not cleaning overlay2 folder? how can I handle this? is there a solution? is it a known bug? ---
**Author:** ![samjonas](https://avatars.discourse-cdn.com/v4/letter/s/3be4f8/32.png) [@samjonas](https://forums.docker.com/u/samjonas)\ **Post date:** [May 10, 2019, 11:44am UTC](https://forums.docker.com/t/disk-space-full-after-pruning/74602/2 "2019-05-10T11:44:14Z")
I am having the same problem… Thanks for posting ---
**Author:** ![nrullo](https://sea3.discourse-cdn.com/docker/user_avatar/forums.docker.com/nrullo/32/23694_2.png) [@nrullo](https://forums.docker.com/u/nrullo)\ **Post date:** [May 10, 2019, 12:51pm UTC](https://forums.docker.com/t/disk-space-full-after-pruning/74602/3 "2019-05-10T12:51:54Z")
Did you find any solution to this? ---
**Author:** ![lbi3](https://avatars.discourse-cdn.com/v4/letter/l/96bed5/32.png) [@lbi3](https://forums.docker.com/u/lbi3)\ **Post date:** [May 15, 2019, 7:48am UTC](https://forums.docker.com/t/disk-space-full-after-pruning/74602/4 "2019-05-15T07:48:15Z")
Hi, try to do this: 1 - Stop Docker 2 - Change your Docker root dir 3 - Start Docker 4 - Reexecute the prune ---
**Author:** ![tgeliot](https://avatars.discourse-cdn.com/v4/letter/t/e56c9b/32.png) [@tgeliot](https://forums.docker.com/u/tgeliot)\ **Post date:** [May 17, 2019, 5:50pm UTC](https://forums.docker.com/t/disk-space-full-after-pruning/74602/5 "2019-05-17T17:50:00Z")
Could it be that the Docker process is still holding file handles open, and thus keeping disk space tied up? I would try simply stopping the Docker server process and seeing if the disk space is freed up then. ---
**Author:** ![bhaskardocker](https://avatars.discourse-cdn.com/v4/letter/b/dc4da7/32.png) [@bhaskardocker](https://forums.docker.com/u/bhaskardocker)\ **Post date:** [May 21, 2019, 5:51pm UTC](https://forums.docker.com/t/disk-space-full-after-pruning/74602/6 "2019-05-21T17:51:41Z")
I Try this i got little space on this command. **initially this is consumed** root@Development:/var/lib/docker/overlay2# du -sch /var/lib/docker/overlay2/\* 52K /var/lib/docker/overlay2/00f692f94c35a737e1a7412c4eb2abc34a23f83a8cd1a594f74e1006f11a4e54 40K /var/lib/docker/overlay2/00f692f94c35a737e1a7412c4eb2abc34a23f83a8cd1a594f74e1006f11a4e54-init 36K /var/lib/docker/overlay2/01e456f6dd3479b4f2092a9632a68457c65269dd88ce9af45d9f925 438M /var/lib/docker/overlay2/0362336ec5eeee7798e242347344e7ca73ca2457fea9235f49e6a07 13M /var/lib/docker/overlay2/fe0d6f3b2595a0d815b38fffa9da83d3fba17c73cffb02f9a8a75f19 25M /var/lib/docker/overlay2/fff1ee5fbb541f97e95f25e8a7eefb6d44d827fafc6da91c4504d42c7 588K /var/lib/docker/overlay2/l 16G total **i just try this** root@Development:/var/lib/docker/overlay2# docker system prune WARNING! This will remove: - all stopped containers - all networks not used by at least one container - all dangling images - all dangling build cache Are you sure you want to continue? [y/N] y untagged: git.cognidesk.ai:5050/root/dev-cognidesk/slack@sha256:a4451603e629f1fee6ddb27258d9d49ac9abb52e22585d73e113a3d1 deleted: sha256:c1cd22b17f4ba3bfd4a9357f92460fec83712849ebbbfc1e650a7a303e2 deleted: sha256:bc3e60bf2b20cfd694d0982879d7eea8920697255f2b56cac7928f975 deleted: sha256:7aba41a10056b75786f51b94642b97cc15824f5605d4918b192a6a05ce9a Total reclaimed space: 1.087GB _got Free space_ root@Development:/var/lib/docker/overlay2# du -sch /var/lib/docker/overlay2/\* 52K /var/lib/docker/overlay2/00f692f94c412c4eb2abc34a23f83a8cd1a594f74e1006f11a4e54 40K /var/lib/docker/overlay2/00f692f94e1a7412c4eb2abc34a23f83a8cd1a594f74e1006f11a4e54-init 36K /var/lib/docker/overlay2/01e456f6dd3ddf4efd94f2092a9632a68457c65269dd88ce9af45d9f925 438M /var/lib/docker/overlay2/0362336e2ce6ee7798e242347344e7ca73ca2457fea9235f49e6a07 80K /var/lib/docker/overlay2/fdb89b39f58dfd99461a46e481d579d7ffaf1e29bad877a6c70fe4900a 13M /var/lib/docker/overlay2/fe0d6f3b25a0d815b38fffa9da83d3fba17c73cffb02f9a8a75f19 25M /var/lib/docker/overlay2/fff1ee5fbb5ef97e95f25e8a7eefb6d44d827fafc6da91c4504d42c7 488K /var/lib/docker/overlay2 14G total