6:55 a.m.
https://bugzilla.redhat.com/show_bug.cgi?id=1093000
Bug ID: 1093000
Summary: Unable to save an image to a tar archive
Product: Fedora
Version: 20
Component: docker-io
Assignee: lsm5(a)redhat.com
Reporter: lslebodn(a)redhat.com
QA Contact: extras-qa(a)fedoraproject.org
CC: admiller(a)redhat.com, golang(a)lists.fedoraproject.org,
lsm5(a)redhat.com, mattdm(a)redhat.com,
mgoldman(a)redhat.com, s(a)shk.io, vbatts(a)redhat.com
Description of problem:
I tried to dump content of docker image to a tarball with command "docker save"
It failed with error message "no space left on device"
Version-Release number of selected component (if applicable):
I was able to reproduce problem with docker-io from stable repository and with
docker-io from updates-testing
[root@vm-169 docker]# rpm -q docker-io
docker-io-0.9.1-1.fc20.x86_64
or
docker-io-0.10.0-2.fc20.x86_64
How reproducible:
Allways
Steps to Reproduce:
1. Create big docker image (e.g. 1.8 GiB)
[root@vm-169 docker-freeipa]# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
big_image latest b366efe500de 57 minutes ago 1.778 GB
fedora 20 b7de3133ff98 5 days ago 372.7 MB
2. save docker image to tarball
[root@vm-169 docker]# docker save big_image > big_image.tar
Actual results:
[root@vm-169 docker]# docker save big_image > big_image.tar
2014/04/30 12:39:38 Error: write
/docker-export-085323451/934d868afd0a79629df2cad704cbc1ed9344654625569263a630933d2785de57/layer.tar:
no space left on device
[root@vm-169 docker]# file big_image.tar
big_image.tar: empty
[root@vm-169 docker]# ls -l big_image.tar
-rw-r--r--. 1 root root 0 Apr 30 13:41 big_image.tar
Expected results:
File big_image.tar should not be empty and should contain data from docker
image with name big_image
Additional info:
Directory /tmp should be used for creating small temporary files, because it is
mounted on tmpfs. I think it would be better to use /var/tmp in this case.
--
You are receiving this mail because:
You are on the CC list for the bug.
7:08 a.m.
New subject: [Bug 1093000] Unable to save an image to a tar archive
https://bugzilla.redhat.com/show_bug.cgi?id=1093000
Sam Kottler <s(a)shk.io> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |CLOSED
Resolution|--- |NOTABUG
Last Closed| |2014-04-30 08:08:54
--- Comment #1 from Sam Kottler <s(a)shk.io> ---
This really isn't a bug, I'd suggest you take it up with the upstream docker
maintainers. IMHO, /tmp (or, as you point out /var/tmp) is the best place for
the temporary images and if you need to create very large images then you need
to have enough space in the temporary directory.
But your machine running out of space because of a large image isn't a bug.
--
You are receiving this mail because:
You are on the CC list for the bug.
7:47 a.m.
New subject: [Bug 1093000] Unable to save an image to a tar archive
https://bugzilla.redhat.com/show_bug.cgi?id=1093000
Lukas Slebodnik <lslebodn(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|CLOSED |NEW
Resolution|NOTABUG |---
Keywords| |Reopened
--- Comment #2 from Lukas Slebodnik <lslebodn(a)redhat.com> ---
I don't have problem with creating large images. The docker image has already
been created. I have problem with exporting docker image to tarball.
It is not problem that my machine is running out of space. I have a lot of free
space on my disk and I didn't want to store anything on /tmp
[root@vm-169 ~]# df -h /root/
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_root-lv_root 9.5G 4.4G 4.6G 50% /
[root@vm-169 ~]# docker save big_image > /root/big_image.tar
2014/04/30 14:33:02 Error: write
/tmp/docker-export-638760671/934d868afd0a79629df2cad704cbc1ed9344654625569263a630933d2785de57/layer.tar:
no space left on device
According to docker help, the image should be streamed to standard output. I
would expect it works without any side effect. And if docker cannot limit size
of temporary files it will be better to use /var/tmp.
/tmp is by default mounted as tmpfs. It was introduced in fedora 18
https://fedoraproject.org/wiki/Features/tmp-on-tmpfs
Yes, it can be overridden by administrator, so there is a workaround.
But in my opinion, it should work with default settings.
And changing temporary directory from /tmp to /var/tmp should be easy.
--
You are receiving this mail because:
You are on the CC list for the bug.
11:43 a.m.
New subject: [Bug 1093000] Unable to save an image to a tar archive
https://bugzilla.redhat.com/show_bug.cgi?id=1093000
--- Comment #3 from Daniel Walsh <dwalsh(a)redhat.com> ---
Alex do you have an idea on this?
--
You are receiving this mail because:
You are on the CC list for the bug.
10:31 a.m.
New subject: [Bug 1093000] Unable to save an image to a tar archive
https://bugzilla.redhat.com/show_bug.cgi?id=1093000
--- Comment #4 from Alexander Larsson <alexl(a)redhat.com> ---
I don't see why we would have to temporarily store it to disk at all.
--
You are receiving this mail because:
You are on the CC list for the bug.
3:22 p.m.
New subject: [Bug 1093000] Unable to save an image to a tar archive
https://bugzilla.redhat.com/show_bug.cgi?id=1093000
Daniel Walsh <dwalsh(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
--- Comment #5 from Daniel Walsh <dwalsh(a)redhat.com> ---
https://github.com/dotcloud/docker/pull/6456
Should fix this issue.
Lokesh can you add this patch.
--
You are receiving this mail because:
You are on the CC list for the bug.
1:34 p.m.
New subject: [Bug 1093000] Unable to save an image to a tar archive
https://bugzilla.redhat.com/show_bug.cgi?id=1093000
--- Comment #6 from Daniel Walsh <dwalsh(a)redhat.com> ---
Lokesh could you add this pull request to docker-1.0 in rawhide so we can get
some testing on it.
--
You are receiving this mail because:
You are on the CC list for the bug.
2:25 p.m.
New subject: [Bug 1093000] Unable to save an image to a tar archive
https://bugzilla.redhat.com/show_bug.cgi?id=1093000
Daniel Walsh <dwalsh(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|lsm5(a)redhat.com |dwalsh(a)redhat.com
--
You are receiving this mail because:
You are on the CC list for the bug.
2:57 p.m.
New subject: [Bug 1093000] Unable to save an image to a tar archive
https://bugzilla.redhat.com/show_bug.cgi?id=1093000
Daniel Walsh <dwalsh(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |MODIFIED
--- Comment #7 from Daniel Walsh <dwalsh(a)redhat.com> ---
Fixed in docker-1.1.2
--
You are receiving this mail because:
You are on the CC list for the bug.
6:43 a.m.
New subject: [Bug 1093000] Unable to save an image to a tar archive
https://bugzilla.redhat.com/show_bug.cgi?id=1093000
--- Comment #8 from Fedora End Of Life <endoflife(a)fedoraproject.org> ---
This message is a reminder that Fedora 20 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 20. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora 'version'
of '20'.
Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version'
to a later Fedora version.
Thank you for reporting this issue and we are sorry that we were not
able to fix it before Fedora 20 is end of life. If you would still like
to see this bug fixed and are able to reproduce it against a later version
of Fedora, you are encouraged change the 'version' to a later Fedora
version prior this bug is closed as described in the policy above.
Although we aim to fix as many bugs as possible during every release's
lifetime, sometimes those efforts are overtaken by events. Often a
more recent Fedora release includes newer upstream software that fixes
bugs or makes them obsolete.
--
You are receiving this mail because:
You are on the CC list for the bug.
6:56 a.m.
New subject: [Bug 1093000] Unable to save an image to a tar archive
https://bugzilla.redhat.com/show_bug.cgi?id=1093000
Lukas Slebodnik <lslebodn(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|MODIFIED |CLOSED
Version|20 |21
Resolution|--- |CURRENTRELEASE
Last Closed|2014-04-30 08:08:54 |2015-05-29 07:56:52
--- Comment #9 from Lukas Slebodnik <lslebodn(a)redhat.com> ---
It's already fixed in fedora 21
bash-4.3# grep tmp /etc/sysconfig/docker
# docker load and build operations. Default is /var/lib/docker/tmp
# DOCKER_TMPDIR=/var/tmp
--
You are receiving this mail because:
You are on the CC list for the bug.
3248
days inactive
3642
days old
golang@lists.fedoraproject.org
10 comments
1 participants
participants (1)
-
Red Hat Bugzilla