DragonFly kernel List (threaded) for 2008-10
DragonFly BSD
DragonFly kernel List (threaded) for 2008-10
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Re: HAMMER cleanup


From: Claes Wallin <clacke+dragonflybsd@xxxxxxxxxxxxxx>
Date: Wed, 29 Oct 2008 20:00:15 +0100

Michel Salim wrote:
On Wed, Oct 22, 2008 at 8:56 AM, Sascha Wildner <saw@online.de> wrote:
Michel Salim schrieb:
Is there anything like Linux's anacron on the BSDs? It would just run
any cron jobs missed because the computer was not on. Not sure if it
can be configured to only kick off after the rest of the boot process
has been completed though; that would avoid the "doing heavy IO at
start-up" concern.
Anacron is in pkgsrc (time/anacron). Never used it personally, though.

So:
- not a good option, since it's not part of the core OS?
- or, alternatively, laptop users who use Hammer are assumed to know
what they are doing

Another solution would be to do a cleanup every N mounts (similar to
the tunable file system option for ext2/3 on Linux that would run fsck
every N mounts); but this would not work for laptop users who just
suspend their machines at night.

Anacron is not a (very) complicated beast. Basic functionality could be provided by a simple script that checks if a timestamp was updated at most <bar> days ago. If timestamp is old, run cleanup. Run this script every <foo> minutes.
--
/c




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