Public bug reported:
See below for detail, but basically from oneiric released images to
precise images, we've grown from root filesystem used of 762M to 973M.
That is 27% size increase.
This compares what I found on
ubuntu-oneiric-11.10-<arch>-server-20120108
ubuntu-precise-daily-<arch>-server-20120202
The .img and .tar.gz files on cloud-images have grown also, but
strangely it seems less. comparing alpha-2 from precise to last release
of oneiric (20120108) shows:
-------------- | 11.10 | prec | %growth
amd64 disk.img | 218M | 228M | 4.8
amd64 .tar.gz_ | 207M | 217M | 4.6
amd64 ebs df__ | 762M | 973M | 27.6
amd64 inst df_ | 655M | 823M | 25.6
i386_ disk.img | 198M | 210M | 6.0
i386_ .tar.gz_ | 188M | 200M | 6.3
i386_ ebs df__ | 689M | 814M | 18.1
i386_ inst df_ | 582M | 753M | 29.3
(Note, precise df numers are from daily build 20120108, 1 day after
alpha2)
I suspect that part of the discrepancy between instance and ebs is
somehow related to how we populate them. In the build process, the
instance store builds are done into a 1.4G filesystem, and then that is
grown (resize2fs) to 10G before publishing to EC2. The EBS population
script downloads the 1.4GB filesystem image, creates a filesystem on a
8G disk, then mounts it loopback and rsync's the data from the image to
the new filesystem. (Essentially, mkfs is done on a 1.4G filesystem,
and one is done on a 8G filesystem).
So i have the following separate issues raised from above:
* why such a dramatic growth between 11.10 and 12.04 current
* can we/should we get the EBS filesystem usage more in line with
instance-store?
* Why the vast outlier below in increased usage of ebs for a given
release-arch:
oneiric-amd64: 16%
oneiric-i386: 18%
precise-amd64: 18%
precise-i386: 8%
** Affects: ubuntu
Importance: Medium
Assignee: Ubuntu Server Team (ubuntu-server)
Status: Confirmed
** Tags: cloud-images ec2-images
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Server Team, which is a bug assignee.
https://bugs.launchpad.net/bugs/926160
Title:
precise cloud-images significantly larger than oneiric
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