[Bug 1257036] Re: services started with eatmydata should remove eatmydata by default

[Scott Moser]

I failed to put a bug number in the debian/changelog, but:

This bug was fixed in the package sysvinit  - 2.88dsf-41ubuntu5.

----------------------
sysvinit (2.88dsf-41ubuntu5) trusty; urgency=low

  * debian/src/sysv-rc/sbin/invoke-rc.d: clean eatmydata from environment
    unless INVOKE_RCD_ALLOW_EATMYDATA is set to value other than '0'.

 -- Scott Moser <smoser at ubuntu.com>  Mon, 02 Dec 2013 17:12:03 -0500


** Changed in: sysvinit (Ubuntu)
       Status: Confirmed => Fix Released

** Changed in: sysvinit (Ubuntu)
     Assignee: (unassigned) => Scott Moser (smoser)

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https://bugs.launchpad.net/bugs/1257036

Title:
  services started with eatmydata should remove eatmydata by default

Status in “sysvinit” package in Ubuntu:
  Fix Released

Bug description:
  when services are started from sysvinit (/etc/init.d/$SERVICE start),
  LD_PRELOAD will pass through to the started service.  That is fine,
  and even expected/desired in most cases.

  One explicit case where it is not expected (most of the time) is
  eatmydata is used.

  The use case that I want to "do the right thing" is:
   sudo eatmydata apt-get install mysql

  Here, I want apt-get to run with eatmydata (in order to improve
  performance), but do not want the mysql daemon to start with fsync()
  disabled.

  My solution to this problem is to simply have something clean
  libeatmydata.so from LD_PRELOAD prior to starting services.  I'd
  support an environment variable NEVER_DISABLE_LIBEATMYDATA=1 that
  would enable the user who wanted eatmydata to pass through to the
  service.

  It seems the common place for this to be done would be either:
   a.) /usr/sbin/service (sysvinit-utils)
   b.) invoke-rc.d

  Doing this in invoke-rc.d fixes it for the 'dpkg install' path, and is
  the least invasive path.  (fixing 'service' would not actually fix the
  dpkg install path as invoke-rc.d does not call service).

  so, I'd suggest we fix this in invoke-rc.d.


  Related bugs:
   * bug 1236531: cloud-init support package install with eatmydata

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: sysv-rc 2.88dsf-41ubuntu4
  ProcVersionSignature: Ubuntu 3.12.0-4.12-generic 3.12.1
  Uname: Linux 3.12.0-4-generic x86_64
  ApportVersion: 2.12.7-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Dec  2 14:26:17 2013
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2011-10-19 (775 days ago)
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  PackageArchitecture: all
  SourcePackage: sysvinit
  UpgradeStatus: Upgraded to trusty on 2013-05-20 (196 days ago)

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