Re: apt-cacher-ng problems
On Sun 07 Aug 2022 at 08:46:12 (+0100), Tim Woodall wrote:
> I installed acng yesterday. Nothing else has changed.
>
> A script is fetching all of the required packages plus a few others for
> amd64,i386,arm64 and armel starting with sid all the way to jessie
>
> Rather complicated setup: (This does make sense although in this
> particular failure it looks excessively complicated)
>
> apt(aptmirror17) -> acng (localhost) -> squid (different host) ->
> apache(back on aptmirror17)
>
> downloaded all of the i386 packages and was fine for amd64 until
> 1659848478|O|404276|::1|aptmirror17.home.woodall.me.uk/local/pool/essential/sid/amd64/grep_3.7-1_amd64.deb
> 1659848478|E|632|::1|aptmirror17.home.woodall.me.uk/local/pool/essential/sid/amd64/gzip_1.12-1_amd64.deb [HTTP error, code: 502]
> 1659848478|E|632|::1|aptmirror17.home.woodall.me.uk/local/pool/essential/sid/amd64/hostname_3.23_amd64.deb [HTTP error, code: 502]
> etc
So you're caching sid …
> I don't have the exact output from apt for this particular error but it
> will have been something like:
> Err:129 http://aptmirror17.home.woodall.me.uk/local buster/essential
> armel linux-image-4.19.0-21-rpi armel 4.19.249-2
> 502 Connection closed [IP: ::1 3128]
> ...
[ … ]
> I cannot see anything wrong in either of the squid or apache logs.
[ … ]
> Squid checking the file is unchanged is logged by apache.
> 2001:8b0:bfcd:100:MUNGED:8 - - [07/Aug/2022:05:01:17 +0000]
> "GET /local/pool/essential/sid/amd64/grep_3.7-1_amd64.deb HTTP/1.1" 304
> - "-" "Apt-Cacher-NG/3.6.4" "aptmirror17.home.woodall.me.uk"
… and that looks as if you're running acng/bullseye.
Your setup is too complicated for me to give any direct help, but
I can say that running acng/versionN to cache packages from versionN+1
has twice led to a need to upgrade to acng/versionNbackports, once to
acng/versionNsloppybpo, and once where even that wasn't enough.
> It looks very much to me that acng is getting overloaded due to the
> amount of data it is writing.
>
> I've kept retrying and after about a dozen failures, all the data is now
> cached and I no longer get these 502 errors.
>
> FTAOD, this has worked flawlessly until I added acng into the mix.
>
>
> Anyone got any ideas? I can change logging on all parts of this chain.
>
>
> Two other acng questions:
> How can I disable expiry completely? I've set it to 40000 days
> currently.
>
> Can I disable caching for aptmirror17 specifically?
>
> The documentation isn't great...
Cheers,
David.
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