[Bug 606491] Re: start: Job is already running: anacron

[Daniel Richard G.]

The logic is already written with the intent of failing silently if
anacron is already running; that's what the "|| :" bit is for. Anacron
can be started from multiple places (various cron entries and pm-utils),
so it has to address the possibility of collisions from two instances
starting at roughly the same time. (I'm only getting the e-mail
infrequently, so this is what is probably happening in my case.)

If you find the e-mail messages useful for diagnosing hung jobs, then
you'll need to file a separate feature request. For one, anacron would
need better logic to determine when collisions are a result of those
rather than two instances starting in close succession.

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https://bugs.launchpad.net/bugs/606491

Title:
  start: Job is already running: anacron

Status in “anacron” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: anacron

  Every day cron sends me this email:

    Date: Sat, 17 Jul 2010 07:30:01 +1200
    From: Cron Daemon <root at hostname>
    To: root at hostname
    Subject: Cron <root at hostname> start -q anacron || :

    start: Job is already running: anacron

  I've tried to find out why it was running twice, but I could only find
  one copy of anacron in the cron directories...

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