When I run apt-get update with a limited download bandwidth, I see intermittent errors. I run that from cron-apt, i.e. I see essentially almost every
day that at least one or two files did not download properly (out of approx. 20 for jessie, sid, and experimental).
root@home:~# apt-get update -o Debug::Acquire::http=True -o Acquire::http::Dl-Limit=25
0% [Working]GET /apt-cacher/ftp-stud.fht-esslingen.de/debian/dists/jessie/InRelease HTTP/1.1
Host: localhost:3142
Cache-Control: max-age=0
Accept: text/*
If-Modified-Since: Sat, 25 Oct 2014 20:53:41 GMT
User-Agent: Debian APT-HTTP/1.3 (1.0.9.3)
0% [Waiting for headers]Answer for: http://localhost:3142/apt-cacher/ftp-stud.fht-esslingen.de/debian/dists/jessie/InRelease
HTTP/1.1 200 OK
Connection: Keep-Alive
Date: Sun, 26 Oct 2014 07:46:14 GMT
Via: 1.1 home:3142 (apt-cacher/1.7.10)
Accept-Ranges: bytes
ETag: "2eaae-5064a83d9f840"
Server: Apache/2.4.10 (Fedora)
Content-Length: 191150
Last-Modified: Sun, 26 Oct 2014 02:53:13 GMT
Get:1 http://localhost:3142 jessie InRelease [191 kB]
93% [1 InRelease 177 kB/191 kB 93%] 19.8 kB/s 0sGET /apt-cacher/ftp-stud.fht-esslingen.de/debian/dists/sid/InRelease HTTP/1.1
Host: localhost:3142
Cache-Control: max-age=0
Accept: text/*
If-Modified-Since: Sat, 25 Oct 2014 20:53:50 GMT
User-Agent: Debian APT-HTTP/1.3 (1.0.9.3)
Answer for: http://localhost:3142/apt-cacher/ftp-stud.fht-esslingen.de/debian/dists/sid/InRelease
HTTP/1.1 200 OK
[...]
Err http://localhost:3142 experimental/non-free armhf Packages
404 Not Found [IP: ::1 3142]
Fetched 10.6 MB in 7min 17s (24.3 kB/s)
W: Failed to fetch http://localhost:3142/apt-cacher/ftp-stud.fht-esslingen.de/debian/dists/sid/contrib/binary-armhf/Packages 404 Not Found [IP: ::1 3142]
W: Failed to fetch http://localhost:3142/apt-cacher/ftp-stud.fht-esslingen.de/debian/dists/experimental/non-free/binary-armhf/Packages 404 Not Found [IP: ::1 3142]
E: Some index files failed to download. They have been ignored, or old ones used instead.
root@home:~#
Please let me know, if you would like to have additional data.
Thanks,
Rainer