[Bug 998695] Re: Ureadahead try to read missing log files, then Fail to read compressed log files

[Bryan Fullerton]

*** This bug is a duplicate of bug 559525 ***
    https://bugs.launchpad.net/bugs/559525

To clarify, the function of ureadahead is to load files used by the boot
process into memory (disk cache) before they are needed by the boot
process. Specifically, it is used to increase the speed of reading files
from the disk.

Log files in /var/log are not read from the disk during the boot
process, they are only written to. So there is no value in caching them
with ureadahead, and in fact there can be a very significant performance
penalty if the logs are large.

Removing /var/log from ureadahead is the point of bug 559525, so it is a
valid duplicate in this case.


** This bug has been marked a duplicate of bug 559525
   Trace should ignore files in /var/log

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https://bugs.launchpad.net/bugs/998695

Title:
  Ureadahead try to read missing log files, then Fail to read compressed
  log files

Status in “ureadahead” package in Ubuntu:
  New

Bug description:
  Precise i386 logged as gnome-classic

  from /var/log/upstart/ i get :

  ureadahead:/var/log/upstart/ureadahead-other.log: No such file or directory
  ureadahead:/var/log/upstart/module-init-tools.log: No such file or directory
  ureadahead:/var/log/upstart/procps-virtual-filesystems.log: No such file or directory
  ureadahead:/var/log/upstart/console-setup.log: No such file or directory
  ureadahead:/var/log/upstart/container-detect.log: No such file or directory
  ureadahead:/var/log/upstart/rsyslog.log: No such file or directory
  ureadahead:/var/log/upstart/statd.log: No such file or directory
  ureadahead:/var/log/upstart/gssd.log: No such file or directory
  ureadahead:/var/log/upstart/udev-fallback-graphics.log: No such file or directory
  ureadahead:/var/log/upstart/cryptdisks-enable.log: No such file or directory
  ureadahead:/var/log/upstart/cups.log: No such file or directory
  ureadahead:/var/log/upstart/network-interface-eth0.log: No such file or directory
  ureadahead:/var/log/upstart/hybrid-gfx.log: No such file or directory
  ureadahead:/var/lib/pgl/.pglcmd.iptables.remove.sh: No such file or directory
  ureadahead:/home/oem/.pulse/81a87d7c3e7524bcba4b9eff49d87ce0-runtime/pid: No such file or directory
  ureadahead:/home/oem/.xinput.d/fr_FR: No such file or directory
  ureadahead:/var/log/upstart/cups.log: No such file or directory
  ureadahead:/var/log/upstart/network-interface-eth0.log: No such file or directory
  ureadahead:/var/lib/pgl/.pglcmd.iptables.remove.sh: No such file or directory
  ureadahead:/home/oem/.pulse/81a87d7c3e7524bcba4b9eff49d87ce0-runtime/pid: No such file or directory
  ureadahead:/home/oem/.xinput.d/fr_FR: No such file or directory
  ureadahead:/var/log/upstart/cups.log: No such file or directory
  ureadahead:/var/log/upstart/network-interface-eth0.log: No such file or directory
  ureadahead:/var/lib/pgl/.pglcmd.iptables.remove.sh: No such file or directory
  ureadahead:/home/oem/.pulse/81a87d7c3e7524bcba4b9eff49d87ce0-runtime/pid: No such file or directory
  ureadahead:/home/oem/.xinput.d/fr_FR: No such file or directory

  So ureadahead is looking for somefile.log, but inside this upstart
  subdir all the logs are compressed  as somefile.log.1.gz

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: ureadahead 0.100.0-12
  ProcVersionSignature: Ubuntu 3.4.0-1.2-generic-pae 3.4.0-rc5
  Uname: Linux 3.4.0-1-generic-pae i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: i386
  Date: Sun May 13 10:19:41 2012
  SourcePackage: ureadahead
  UpgradeStatus: No upgrade log present (probably fresh install)

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