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[Bug 840327] Re: /etc/logrotate.d/rsyslog should not have compress option

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Jérôme <840327@xxxxxxxxxxxxxxxxxx>
Date: Thu, 31 Jul 2014 18:03:00 -0000
Reply-to: Bug 840327 <840327@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

This becomes more important with SSD disks whose lifetime depends on the
number of write cycles.

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https://bugs.launchpad.net/bugs/840327

Title:
  /etc/logrotate.d/rsyslog should not have compress option

Status in “rsyslog” package in Ubuntu:
  Opinion
Status in “rsyslog” package in Debian:
  Fix Released

Bug description:
  I think that log files compression lowers the system performance on
  desktop computers which have now enough disk space for storing old
  logs.

  The "nocompress" and "compress" options of logrotate configure 2
  different behaviours of logrotate.

  If the log file isn't compressed,
  logrotate will just rename it to something like 'log_file_name.log.1'
  with quite no disk input/output.

  If the log file is compressed,
  logrotate will read the file, compress it and rewrite the content into a new file with a name like 'log_file_name.log.1.gz'.

  I think that files compression is a good tradeoff only in case the
  compressed files have a longer lifetime than the log files (i. e. man
  pages, documentation, fonts, Debian package files, ...).

  Drawbacks of log files compression :
  - increases disk input/output
  - increases cpu and memory usage
  - increases energy consumption
  - slightly decreases the disk lifetime

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: rsyslog 4.6.4-2ubuntu4
  ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8
  Uname: Linux 2.6.38-11-generic x86_64
  Architecture: amd64
  Date: Sat Sep  3 15:10:19 2011
  InstallationMedia: Lubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427)
  ProcEnviron:
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  SourcePackage: rsyslog
  UpgradeStatus: No upgrade log present (probably fresh install)

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