APT proxy metadata problems

post by pogacnik on Mar 28, 2022

“apt update” command returns error:

E: Failed to fetch http://XXXXXXXXX/repository/apt-download-docker-proxy/dists/bionic/nightly/binary-amd64/Packages.gz File has unexpected size (71462 != 71267). Mirror sync in progress?

It happens occasionally on different proxied repositories.

• Apt proxy for Ubuntu not working

post by joeplaa on Aug 7, 2022

I have the same issue. So far I’ve only had this when using my Nexus apt proxies on Desktop Ubuntu installations. This error never happens on the server edition.

I have added the exact same entries in /etc/apt/sources.list in the server and desktop editions of Ubuntu Bionic, Focal and Jammy. Every single time the server edition works, the desktop won’t.

I think it is related to downloading/generating images (icons) for the software manager in the desktop version, but I’m not sure. That is where my debugging skills end.

post by slv_b on Aug 15, 2022

I have the same issue.

https://FQDN/repository/ubuntu-focal/dists/focal-security/main/binary-i386/Packages.xz File has unexpected size (479908 != 480080). Mirror sync in progress?

I test my local ubuntu mirror and compare with "https://archive.ubuntu.com/ubuntu/dists/focal-security/"

Files Packages.xz and InRelease in local mirror are the same as in http://archive.ubuntu.com/ubuntu/dists/focal-security/ with size 479908

Packages.xz in nexus cache is the same like in http://archive.ubuntu.com/ubuntu/dists/focal-security/ and local mirror too.

But InRelease in nexus cache is older than in local and remote mirrors. And the size of Packages.xz in that file is equal 480080.

Only manual (or via general rest api) “clear cache” and “invalidate index” helps to fix that problem.

Are there any ideas how to fix that problem?

post by pogacnik on Nov 18, 2022

For me it helps if I manually delete metadata directory from repo and let it cache again. But this is not a proper solution.

post by pogacnik on Jan 31, 2024

Metadata file size on nexus does not match metadata file on remote url, even if I delete locally cached metadata files and redownload them:

Remote url: Index of /ubuntu/dists/jammy/by-hash/SHA256

post by mpiggott on Jan 31, 2024

Looks like the remote is returning the transfer size which is gzipped. You can verify this by downloading one of the files with a web browser.

post by joeplaa on Jan 9, 2025

This seems to be fixed. I don’t know as of which version, but I’m currently on 3.75.1-01 and can run apt update and apt upgrade on my desktop just fine.

joep@PCJOEP:~$ sudo apt update
Hit:1 https://nexus20.joeplaa.com/repository/ubuntu jammy InRelease
Hit:2 https://nexus20.joeplaa.com/repository/ubuntu jammy-updates InRelease
Hit:3 https://nexus20.joeplaa.com/repository/ubuntu jammy-backports InRelease
Hit:4 https://nexus20.joeplaa.com/repository/ubuntu jammy-security InRelease
Hit:5 https://nexus20.joeplaa.com/repository/docker-apt jammy InRelease
Hit:6 https://nexus20.joeplaa.com/repository/microsoft-edge-apt-proxy stable InRelease
Hit:7 https://ppa.launchpadcontent.net/ansible/ansible/ubuntu jammy InRelease
Hit:8 https://ppa.launchpadcontent.net/kdenlive/kdenlive-stable/ubuntu jammy InRelease
Get:9 https://esm.ubuntu.com/apps/ubuntu jammy-apps-security InRelease [7.565 B]
Hit:10 http://old-releases.ubuntu.com/ubuntu kinetic InRelease
Get:11 https://esm.ubuntu.com/apps/ubuntu jammy-apps-updates InRelease [7.456 B]
Get:12 https://esm.ubuntu.com/infra/ubuntu jammy-infra-security InRelease [7.450 B]
Hit:13 http://download.proxmox.com/debian/pbs-client bookworm InRelease
Get:14 https://esm.ubuntu.com/infra/ubuntu jammy-infra-updates InRelease [7.449 B]
Get:15 https://nvidia.github.io/libnvidia-container/stable/deb/amd64  InRelease [1.477 B]
Hit:16 https://deb.volian.org/volian nala InRelease
Fetched 31,4 kB in 1s (26,8 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
3 packages can be upgraded. Run 'apt list --upgradable' to see them.
N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'http://download.proxmox.com/debian/pbs-client bookworm InRelease' doesn't support architecture 'i386'
joep@PCJOEP:~$

post by pogacnik on Jan 10, 2025

Thanks for your reply, yes it works now, it was solved in a day.