Bug#955429: possiblity of using a different download agent like wget in bad internet connections
Package: apt, apt-cacher-ng
Severity: wishlist
I have to use a bad internet connection that keeps breaking between
downloads of large files (it has become worse after the covid-19
lockdown), but those same files are downloaded by wget just fine, ie,
it is can easily resume after a short breakage.
For example using wget, this file was downloaded at a single try with
wget coping with breakages in between,
sudo -u apt-cacher-ng wget
http://deb.debian.org/debian/pool/main/g/golang-1.14/golang-1.14-go_1.14-2~bpo10+1_amd64.deb
--2020-03-31 21:31:23--
http://deb.debian.org/debian/pool/main/g/golang-1.14/golang-1.14-go_1.14-2~bpo10+1_amd64.deb
Resolving deb.debian.org (deb.debian.org)... 151.101.114.133,
2a04:4e42:3::645
Connecting to deb.debian.org (deb.debian.org)|151.101.114.133|:80...
connected.
HTTP request sent, awaiting response... 200 OK
Length: 49760864 (47M) [application/x-debian-package]
Saving to: ‘golang-1.14-go_1.14-2~bpo10+1_amd64.deb’
golang-1.14-go_1.14- 100%[======================>] 47.46M 262KB/s in 6m
41s
2020-03-31 21:38:05 (121 KB/s) -
‘golang-1.14-go_1.14-2~bpo10+1_amd64.deb’ saved [49760864/49760864]
where as apt with apt-cacher-ng files multiple times (just one example
package but it happens with many large packages making it really
frustrating),
Get: 1 http://deb.debian.org/debian buster-backports/main amd64
golang-1.14-go amd64 1.14-2~bpo10+1 [49.8 MB]
Err http://deb.debian.org/debian buster-backports/main amd64
golang-1.14-go amd64 1.14-2~bpo10+1
Bad header line Bad header data [IP: 127.0.0.1 3142]
Get: 2 http://deb.debian.org/debian buster-backports/main amd64
golang-go amd64 2:1.14~1~bpo10+1 [23.9 kB]
Err http://deb.debian.org/debian buster-backports/main amd64 golang-go
amd64 2:1.14~1~bpo10+1
Hash Sum mismatch
Hashes of expected file:
-
SHA256:547b2814a4ff0a0478951e60611589e68531716b60c5ea46c4b25792bc8f6e66
- Filesize:23880 [weak]
Hashes of received file:
-
SHA256:8563eb3b5b3dbd88790d4fa40e4e1378aaa0713277ab9b1e2e763fd9bd5cd832
- Filesize:23880 [weak]
Last modification reported: Mon, 16 Mar 2020 14:57:23 +0000
Get: 3 http://deb.debian.org/debian buster/main amd64
golang-golang-x-tools amd64 1:0.0~git20190125.d66bd3c+ds-4+b1 [32.6 MB]
Err http://deb.debian.org/debian buster/main amd64
golang-golang-x-tools amd64 1:0.0~git20190125.d66bd3c+ds-4+b1
Hash Sum mismatch
Hashes of expected file:
-
SHA256:5cce1cbd14b5f2d0833a491173cfeb62a80ee6b78f73eb49896d6046572ad5f9
- MD5Sum:6123b2748ab31b5c9f60281654a876c2 [weak]
- Filesize:32644448 [weak]
Hashes of received file:
-
SHA256:713ee8bbe7dbb2dc0fface84055df483f6a5cb54328b2fce7daf157a6e07b330
- MD5Sum:b64064be5fda9678d7a6c71c3d118d15 [weak]
- Filesize:32644448 [weak]
Last modification reported: Sat, 08 Jun 2019 09:58:38 +0000
Fetched 32.7 MB in 5s (6429 kB/s)
E: Failed to fetch
http://deb.debian.org/debian/pool/main/g/golang-1.14/golang-1.14-go_1.14-2~bpo10+1_amd64.deb:
Bad header line Bad header data [IP: 127.0.0.1 3142]
E: Unable to fetch some packages; try '-o APT::Get::Fix-Missing=true'
to continue with missing packages
On a search I found this, but this is not really meant for this
situation,
https://www.debian.org/doc/manuals/apt-offline/ch3.en.html
Would it be possible to configure apt to use wget automatically to not
fail when connection breaks for short periods as evidently something
wget can manage well?
I'm not sure if it is apt or apt-cacher-ng that is breaking here, hense
opening against both.
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