Public bug reported:
UCA Rocky has older versions than UCA Stein for some Ceph python2
packages, e.g., python-cephfs.
This is an issue for versioned dependencies that require an exact
version that isn't there.
The apt solution is removing packages, but that's not allowed on `apt
upgrade`, thus `apt` keeps back / doesn't upgrade some ceph packages
(`apt full-upgrade` can remove/works fine.)
Example:
$ apt-cache madison python-cephfs
python-cephfs | 13.2.8-0ubuntu0.18.10.1~cloud0 |
http://ubuntu-cloud.archive.canonical.com/ubuntu bionic-updates/rocky/main
amd64 Packages
python-cephfs | 13.2.1+dfsg1-0ubuntu3~cloud0 |
http://ubuntu-cloud.archive.canonical.com/ubuntu bionic-updates/stein/main
amd64 Packages
...
Setup Bionic container:
---
$ lxc launch ubuntu:bionic mfo-bionic-uca
$ ssh mfo-bionic-uca.lxd
$ sudo apt --yes purge unattended-upgrades
$ sudo apt update
Install ceph from Bionic (Queens):
---
$ sudo apt --yes install ceph
$ dpkg -s ceph | grep Version
Version: 12.2.13-0ubuntu0.18.04.10
Upgrade to ceph from UCA Rocky:
---
$ sudo add-apt-repository --yes cloud-archive:rocky
$ sudo apt --dry-run upgrade
...
The following packages will be upgraded:
ceph ceph-base ceph-common ceph-mgr ceph-mon ceph-osd libcephfs2 librados2
libradosstriper1 librbd1 python-cephfs python-pecan python-rados python-rbd
python-webob python3-jsonpatch
...
$ sudo apt --yes upgrade
$ dpkg -s ceph | grep Version
Version: 13.2.8-0ubuntu0.18.10.1~cloud0
Upgrade to ceph from UCA Stein:
---
$ sudo add-apt-repository --yes cloud-archive:stein
$ sudo apt --dry-run upgrade
...
The following packages have been kept back:
ceph ceph-base ceph-common ceph-mgr ceph-mon ceph-osd libcephfs2 librados2
libradosstriper1 librbd1
...
Check:
---
$ sudo apt -o Debug::pkgProblemResolver=1 --dry-run upgrade
...
Entering ResolveByKeep 10%
Dependencies are not satisfied for python-cephfs:amd64 <
13.2.8-0ubuntu0.18.10.1~cloud0 @ii mK Ib >
Keeping package python-cephfs:amd64
Dependencies are not satisfied for python-cephfs:amd64 <
13.2.8-0ubuntu0.18.10.1~cloud0 @ii mK Ib >
Package python-cephfs:amd64 python-cephfs:amd64 Depends on
libcephfs2:amd64 < 13.2.8-0ubuntu0.18.10.1~cloud0 ->
13.2.9-0ubuntu0.19.04.1~cloud3 @ii umU > (= 13.2
.8-0ubuntu0.18.10.1~cloud0)
Keeping Package libcephfs2:amd64 due to Depends
...
Issue:
-----
python-cephfs at version 13.2.__8__ has exact version dep on libcephfs2,
which is being upgraded to 13.2.__9__.
Why isn't python-cephfs being upgraded to 13.2.__9__ too?
AH, there's no 13.2.__9__ version for python-cephfs, only for libcephfs2.
So, it stopped on 13.2.__8__ in UCA Rocky, there's no 13.2.__9__ in UCA Stein,
as there's for libcephfs2.
Why is that?
OH, wait. UCA Stein does have python-cephfs, but in an _older_ version than UCA
Rocky: 13.2.__1__.
(but it has _newer_ libcephfs2, ahhh OK; there's the mismatch)
ubuntu@mfo-bionic-uca:~$ apt-cache madison python-cephfs
python-cephfs | 13.2.8-0ubuntu0.18.10.1~cloud0 |
http://ubuntu-cloud.archive.canonical.com/ubuntu bionic-updates/rocky/main
amd64 Packages
python-cephfs | 13.2.1+dfsg1-0ubuntu3~cloud0 |
http://ubuntu-cloud.archive.canonical.com/ubuntu bionic-updates/stein/main
amd64 Packages
python-cephfs | 12.2.13-0ubuntu0.18.04.10 |
http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
python-cephfs | 12.2.13-0ubuntu0.18.04.10 |
http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
python-cephfs | 12.2.4-0ubuntu1 | http://archive.ubuntu.com/ubuntu
bionic/main amd64 Packages
ubuntu@mfo-bionic-uca:~$ apt-cache madison libcephfs2
libcephfs2 | 13.2.9-0ubuntu0.19.04.1~cloud3 |
http://ubuntu-cloud.archive.canonical.com/ubuntu bionic-updates/stein/main
amd64 Packages
libcephfs2 | 13.2.8-0ubuntu0.18.10.1~cloud0 |
http://ubuntu-cloud.archive.canonical.com/ubuntu bionic-updates/rocky/main
amd64 Packages
libcephfs2 | 12.2.13-0ubuntu0.18.04.10 |
http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
libcephfs2 | 12.2.13-0ubuntu0.18.04.10 |
http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
libcephfs2 | 12.2.4-0ubuntu1 | http://archive.ubuntu.com/ubuntu
bionic/main amd64 Packages
Ah, the python*2* pkg is no longer built after that version:
Page
https://launchpad.net/ubuntu/+source/ceph/13.2.1+dfsg1-0ubuntu3/+build/15590380
Has python3-cephfs 13.2.1+dfsg1-0ubuntu3
And python-cephfs 13.2.1+dfsg1-0ubuntu3
Page
https://launchpad.net/ubuntu/+source/ceph/13.2.2+dfsg1-0ubuntu4/+build/15747822
Has python3-cephfs 13.2.2+dfsg1-0ubuntu4
NOT python-cephfs
But how did UCA Rocky get it.
Hm, it's from 13.2.__8__.
Is it an UCA only thing?
Yes, page not found w/out ~cloud suffix
https://launchpad.net/ubuntu/+source/ceph/13.2.8-0ubuntu0.18.10.1
Disco goes up to 13.2.7.
https://launchpad.net/ubuntu/disco/+source/ceph
Eoan starts on 13.2.4 then jumps to 14.2.1:
https://launchpad.net/ubuntu/eoan/+source/ceph
So maybe do equivalently on Stein.
And.. it's been reported that installing just `ceph-common` works, and it
actually REMOVES those.
ubuntu@mfo-bionic-uca:~$ sudo apt --dry-run install ceph-common
...
The following packages will be REMOVED:
python-cephfs python-rados python-rbd
...
The following packages will be upgraded:
ceph ceph-base ceph-common ceph-mgr ceph-mon ceph-osd libcephfs2 librados2
libradosstriper1 librbd1
...
And that's why `apt upgrade` doesn't work; it CANNOT remove packages.
Ok, so `apt full-upgrade` does WORK, as it CAN:
man 8 apt
upgrade (apt-get(8))
... If an upgrade for a package
requires the remove of an installed package the upgrade for this
package isn't performed.
full-upgrade (apt-get(8))
full-upgrade performs the function of upgrade but will remove
currently installed packages if this is needed to upgrade the system as a whole.
And there we go.
ubuntu@mfo-bionic-uca:~$ sudo apt --dry-run full-upgrade
...
The following packages will be REMOVED:
python-cephfs python-rados python-rbd
The following NEW packages will be installed:
...
The following packages will be upgraded:
ceph ceph-base ceph-common ceph-mgr ceph-mon ceph-osd ibverbs-providers
libcephfs2 libibverbs1 libnuma1 librados2 libradosstriper1 librbd1
python-pkg-resources python-setuptools python-webob python3-jwt
python3-pkg-resources
...
Yeah, so it seems the issue is UCA Stein having older versions of some
packages than UCA Rocky.
** Affects: ceph (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1960065
Title:
cloud archive: apt upgrade from rocky to stein keeps back some ceph
packages
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