[Bug 1459046] Re: nova-* services do not start if rsyslog is not yet started

[James Page]

Hi Liang

Two comment; firstly your cherry pick is not quite clean - it retains
the existing syslog config code after the try/except wrapper introduced
upstream.

Secondly I'm not sure that this really resolves the issue - if syslog is
not started prior to a nova service, nova will just not use syslog for
logging - which feels wrong to me.

I think a better fix might be to retry configuring syslog a few times -
that way we don't have to update all upstart configurations, as the
common code in the nova codebase will deal with the race.

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https://bugs.launchpad.net/bugs/1459046

Title:
  nova-* services do not start if rsyslog is not yet started

Status in nova package in Ubuntu:
  In Progress
Status in nova source package in Trusty:
  In Progress

Bug description:
  [Impact]

   * Nova services fail to start because they cannot connect to rsyslog

  [Test Case]

   * Set user_syslog to True in nova.conf, stop rsyslog service and
  restart nova services.

  [Regression Potential]

   * None

  
  When nova services log to syslog, we should make sure the dependency on the upstart jobs is set prior to the nova-* services start.

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