I'm an apt-get idiot

[Jared Bernard]

I just have a question about apt-get update. When I run the command I get 
mostly this output:

Get:1 ftp://metalab.unc.edu unstable/main Packages
Hit ftp://non-us.debian.org testing/non-US/main Packages
Hit ftp://non-us.debian.org testing/non-US/main Release

This I believe is good, right?
but then the output changes to mostly this:

Get:14 ftp://ftp.us.debian.org unstable/contrib Packages [73.1kB]
Get:15 ftp://ftp.us.debian.org unstable/contrib Release [85B]
Get:16 ftp://ftp.us.debian.org unstable/non-free Packages [68.1kB]
Get:17 ftp://ftp.us.debian.org unstable/non-free Release [86B]
Get:18 ftp://ftp.us.debian.org unstable/main Sources [1337kB]
Get:19 ftp://ftp.us.debian.org unstable/main Release [84B]
Get:20 ftp://ftp.us.debian.org unstable/contrib Sources [32.0kB]

Still good, right?

but then every time at the end of the output I get this:

Get:23 ftp://ftp.us.debian.org unstable/non-free Release [88B]
Fetched 9479kB in 6m18s (25.1kB/s) Failed to fetch 
ftp://metalab.unc.edu/pub/linux/devel/lang/java/blackdown.org/debian/dists/unstable/main/binary-i386/Packages.gz  
Unable to fetch file, server said 
'/pub/linux/devel/lang/java/blackdown.org/debian/dists/unstable/main/binary-i386/Packages.gz: 
No such file or directory  '
Reading Package Lists... Done
E: Some index files failed to download, they have been ignored, or old ones 
used instead.

This is bad, right?

Basically, I just want to know if I need to change something with apt-get and 
if I do, what do I need to change? Otherwise, is it nothing and apt-get 
update is running fine and that's what's suppose to happen.


Also, if anyone would like to give me a basic understanding of what's 
happening when I run 'apt-get update'. I understand that it's updating where 
it's pulling it's resources from, but what's it doing when I get the the 
'hit' output as compared to the 'get' output and why does it seem that I 
continue to get the same output each time I run the command?

thanks
JB