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[Mike Campbell <mike@xxxxxxxxxxxxxx>]

This is an issue for me. Does this only affect 12.04? Would upgrading to
Ubuntu 14.04 fix it?

If not, or also, would someone be able to explain how to downgrade gzip
to a working version, like I'm 5 years old?

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https://bugs.launchpad.net/bugs/1021975

Title:
  gzip --rsyncable not rsyncable

Status in gzip package in Ubuntu:
  Confirmed

Bug description:
  i use gzip --rsyncable to compress postgresql 9 db dumps for rsyncing
  from an east-coast colo to a west-coast colo.  the dumps are always
  changing in small ways so this compression speeds up the rsync by
  quite a bit.  both the following tests are with a large text dump file
  on both sides, the local is newer than the remote.

  a gzip 1.3.12 (with
  http://archive.ubuntu.com/ubuntu/pool/main/g/gzip/gzip_1.3.12-9ubuntu1.diff.gz)
  session ends with the usual infodump like this:

  rj@fudge:~$ rsync -Pvazl latest-linux-pg9.gz rj@cake:
  Password:
  sending incremental file list
  latest-linux-pg9.gz
    1857354904 100%    2.77MB/s    0:10:39 (xfer#1, to-check=0/1)

  sent 310747861 bytes  received 301381 bytes  456418.55 bytes/sec
  total size is 1857354904  speedup is 5.97

  but with the ubuntu server LTS gzip 1.4 i'm getting little or no
  speedup:

  rj@fudge:~$ rsync -Pvazl latest-linux-pg9.gz rj@cake: 
  Password:
  sending incremental file list
  latest-linux-pg9.gz
    1802447002 100%  634.16kB/s    0:46:15 (xfer#1, to-check=0/1)

  sent 1739614120 bytes  received 297265 bytes  617318.21 bytes/sec
  total size is 1802447002  speedup is 1.04

  i haven't taken a look at the code or data to suggest the difference,
  but the result is noticeable.  basically, not super-critical because i
  can build previous versions with previous-version patches, but i
  figured i should report it.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: gzip 1.4-1ubuntu2
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  Uname: Linux 3.2.0-23-generic x86_64
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: amd64
  Date: Fri Jul  6 21:21:29 2012
  InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Release amd64 (20120424.1)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: gzip
  UpgradeStatus: No upgrade log present (probably fresh install)

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