Bug#354428: Bug#354548: apt-cacher: cleanup fails when Packages.bz2 is empty

[Ross Boylan]

On Tue, Feb 28, 2006 at 09:22:44PM +0100, Eduard Bloch wrote:
 #include hallo.h
 * Andrew Schulman [Mon, Feb 27 2006, 05:19:13AM]:
  Package: apt-cacher
  Version: 1.5.1
  Severity: normal
  
  /etc/cron.daily/apt-cacher fails with:
  
  bzcat: Compressed file ends unexpectedly;
  perhaps it is corrupted?  *Possible* reason follows.
  bzcat: Success
  Input file = 
  http.us.debian.org_debian_dists_.._project_experimental_contrib_binary-i386_Packages.bz2,
   output file = (stdout)
 
 Hi people,
 
 you all reported problems with apt-cacher with symptoms like those
 described above. Please test the new package available in
 http://rootfs.net/debs/apt-cacher_1.5.3_all.deb and report whether the
 problem is solved for you.
 
 The update enjoyed my usual inspections and test parcour, however better
 make a backup copy of your cache before installing it:
 cp -la /var/cacher/apt-cacher /var/cacher/apt-cacher-backup
 (or similar command)
 
 You can run the cleanup script manually as root or the correct user,
 /usr/share/apt-cacher/apt-cacher-cleanup.pl .
 
 Eduard.

Sorry for the slow response, but the nuisance messages have
disappeared.  I believe that in my case the relevant files were
completely absent.

While looking at the apt-cacher-cleanup.pl code I noticed a few small
items in the comments:
1)
# add one argument like 1 to make it verbose
I tried this, but it didn't work.  I think the comment is obsolete,
and the way to get verbose is with -v (which did work for me).

2)
# do locking, not loosing files because someone redownloaded the index
files
That's losing I think.

3)
# file state decissions, lock that area
decisions

4)
# headers for previosly expired files
previously



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Bug#354428: Bug#354548: apt-cacher: cleanup fails when Packages.bz2 is empty

[Eduard Bloch]

#include hallo.h
* Andrew Schulman [Mon, Feb 27 2006, 05:19:13AM]:
 Package: apt-cacher
 Version: 1.5.1
 Severity: normal
 
 /etc/cron.daily/apt-cacher fails with:
 
 bzcat: Compressed file ends unexpectedly;
 perhaps it is corrupted?  *Possible* reason follows.
 bzcat: Success
 Input file = 
 http.us.debian.org_debian_dists_.._project_experimental_contrib_binary-i386_Packages.bz2,
  output file = (stdout)

Hi people,

you all reported problems with apt-cacher with symptoms like those
described above. Please test the new package available in
http://rootfs.net/debs/apt-cacher_1.5.3_all.deb and report whether the
problem is solved for you.

The update enjoyed my usual inspections and test parcour, however better
make a backup copy of your cache before installing it:
cp -la /var/cacher/apt-cacher /var/cacher/apt-cacher-backup
(or similar command)

You can run the cleanup script manually as root or the correct user,
/usr/share/apt-cacher/apt-cacher-cleanup.pl .

Eduard.
-- 
stockholm Overfiend: why dont you flame him? you are good at that.
Overfiend I have too much else to do.


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Bug#354548: apt-cacher: cleanup fails when Packages.bz2 is empty

[Andrew Schulman]

  /etc/cron.daily/apt-cacher fails with:
 
  bzcat: Compressed file ends unexpectedly;
  perhaps it is corrupted?  *Possible* reason follows.
  bzcat: Success
  Input file =
  http.us.debian.org_debian_dists_.._project_experimental_contrib_binary
 -i386_Packages.bz2, output file = (stdout)

 Hi people,

 you all reported problems with apt-cacher with symptoms like those
 described above. Please test the new package available in
 http://rootfs.net/debs/apt-cacher_1.5.3_all.deb and report whether the
 problem is solved for you.

/usr/share/apt-cacher/apt-cacher-cleanup.pl works without error using that 
version.

Thanks.
Andrew.


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Bug#354548: apt-cacher: cleanup fails when Packages.bz2 is empty

[Andrew Schulman]

Package: apt-cacher
Version: 1.5.1
Severity: normal

/etc/cron.daily/apt-cacher fails with:

bzcat: Compressed file ends unexpectedly;
perhaps it is corrupted?  *Possible* reason follows.
bzcat: Success
Input file = 
http.us.debian.org_debian_dists_.._project_experimental_contrib_binary-i386_Packages.bz2,
 output file = (stdout)

It is possible that the compressed file(s) have become corrupted.
You can use the -tvv option to test integrity of such files.

You can use the `bzip2recover' program to attempt to recover
data from undamaged sections of corrupted files.

Error processing 
http.us.debian.org_debian_dists_.._project_experimental_contrib_binary-i386_Packages.bz2
 in /var/cache/apt-cacher/packages, cleanup stopped


This error happens when Packages.bz2 is empty, and in these cases
there is always a non-empty Packages.gz file:

$ cd /var/cache/apt-cacher/packages
$ ls -s *.{bz2,gz}
   0 
http.us.debian.org_debian_dists_.._project_experimental_contrib_binary-i386_Packages.bz2
   4 
http.us.debian.org_debian_dists_.._project_experimental_contrib_binary-i386_Packages.gz
   0 
http.us.debian.org_debian_dists_.._project_experimental_main_binary-i386_Packages.bz2
 156 
http.us.debian.org_debian_dists_.._project_experimental_main_binary-i386_Packages.gz
   0 http.us.debian.org_debian_dists_stable_contrib_binary-i386_Packages.bz2
  56 http.us.debian.org_debian_dists_stable_contrib_binary-i386_Packages.gz
   0 http.us.debian.org_debian_dists_stable_main_binary-i386_Packages.bz2
3275 http.us.debian.org_debian_dists_stable_main_binary-i386_Packages.gz
   0 http.us.debian.org_debian_dists_stable_non-free_binary-i386_Packages.bz2
  60 http.us.debian.org_debian_dists_stable_non-free_binary-i386_Packages.gz
  44 http.us.debian.org_debian_dists_testing_contrib_binary-i386_Packages.bz2
2791 http.us.debian.org_debian_dists_testing_main_binary-i386_Packages.bz2
  56 http.us.debian.org_debian_dists_testing_non-free_binary-i386_Packages.bz2
  48 http.us.debian.org_debian_dists_unstable_contrib_binary-i386_Packages.bz2
2967 http.us.debian.org_debian_dists_unstable_main_binary-i386_Packages.bz2
  64 http.us.debian.org_debian_dists_unstable_non-free_binary-i386_Packages.bz2
   0 people.debian.org_~rdonald_nvidia_modules-unstable_i386_Packages.bz2
  12 people.debian.org_~rdonald_nvidia_modules-unstable_i386_Packages.gz
   0 repos.knio.it_dists_testing_contrib_binary-i386_Packages.bz2
   4 repos.knio.it_dists_testing_contrib_binary-i386_Packages.gz
   0 repos.knio.it_dists_testing_main_binary-i386_Packages.bz2
   8 repos.knio.it_dists_testing_main_binary-i386_Packages.gz
   0 repos.knio.it_dists_testing_non-free_binary-i386_Packages.bz2
   4 repos.knio.it_dists_testing_non-free_binary-i386_Packages.gz
   0 repos.knio.it_dists_unstable_contrib_binary-i386_Packages.bz2
   4 repos.knio.it_dists_unstable_contrib_binary-i386_Packages.gz
   0 repos.knio.it_dists_unstable_main_binary-i386_Packages.bz2
   8 repos.knio.it_dists_unstable_main_binary-i386_Packages.gz
   0 repos.knio.it_dists_unstable_non-free_binary-i386_Packages.bz2
   4 repos.knio.it_dists_unstable_non-free_binary-i386_Packages.gz


Note that before I upgraded apt-cacher to unstable, it would continue
the cleanup job after each of these errors, so it was possible to see
that I would get one of these error messages in exactly those cases
where Packages.bz2 was empty.

I don't know why I get a Packages.gz file from some sources, and a
(non-empty) Packages.bz2 from others.  If it's part of apt's
configuration, I can't find it.

I see that there is a .notify file in private/ for each of the empty
Packages.bz2 files.

I thought this bug might be related to #354428, but that looks to be a
more complicated problem.

Thanks,
Andrew.


-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (990, 'testing'), (400, 'stable'), (200, 'unstable'), (1, 
'experimental')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.15
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages apt-cacher depends on:
ii  bzip2 1.0.3-2high-quality block-sorting file co
ii  libwww-perl   5.803-4WWW client/server library for Perl
ii  perl  5.8.8-2Larry Wall's Practical Extraction 

apt-cacher recommends no packages.

-- no debconf information


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