[Bug 1273462] Re: Users can mistakenly run init.d scripts and cause problems if an equivalent upstart job already exists

[Mark Stosberg]

In Bug #1521771, I spent some time tracking down different behavior
between the mysql-5.5 "init" and "upstart" scripts. They differ on how
many seconds are waited between the SIGTERM and SIGKILL signals are
sent. Different values can mean the difference between a slower clean
shutdown and a shutdown interrupted by a SIGKILL signal.

In the case of that of that package, redirecting the "init.d" calls to
the upstart script will have a positive impact in my opinion-- giving
more time for MySQL to shutdown cleanly.  So the proposed patch will be
functionally helpful.

I do suggest that for any package that's affected by this, the "init.d"
script should be cleaned out, so only the code remains that redirects
people to the upstart script.

There is nothing about this line of code in an "init.d" script which
indicates that that all the code below it is about to ignored:

  . /lib/lsb/init-functions

Nor does the proposed patch emit any output that confirms that redirect
is happened. The result is that someone could pull their hair out
wondering why the "init.d" script is not behaving as expected.

Realize that there are packages like "ec2-consistent-snapshot" which
exist only in a PPA and make a hardcoded call to "/etc/init.d/mysql". It
does that in hopes of working on non-Debian-based systems as well. (The
package is also several years old, from an era when init.d scripts were
more common).   I'm not sure what small projects are supposed to when
they want to issue a command like "stop mysql" in a way that might work
across  SysV init scripts, upstart and systemd.

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Title:
  Users can mistakenly run init.d scripts and cause problems if an
  equivalent upstart job already exists

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