Re: cron vs anacron
On Wed, Dec 13, 2000 at 10:51:27PM -0200, Henrique M Holschuh wrote: On Wed, 13 Dec 2000, Erik Steffl wrote: and you are not supposed to turn off the computer! ever! :-)) Err... but how am I supposed to remove the lint inside the fans then? :P best bet is to get hardware that doesn't need a fan. by that, i mean, not something made by intel. -- There are only two places in the world where time takes precedence over the job to be done. School and prison. --William Glasser [EMAIL PROTECTED]***http://www.dontUthink.com/ volunteer to document your experience for next week's newbies -- http://www.eGroups.com/messages/newbieDoc
Re: cron vs anacron
Thanks a lot to all people who taught me about cron vs anacron! On Wed, 13 Dec 2000 16:19:22 -0800, Erik Steffl wrote: and you are not supposed to turn off the computer! ever! :-)) erik Well, I was asking about my pc at home. From monday to friday I can only spend two or three hours per day with it, why keep it turned on the other 21hs? :) Cheers, Marcelo _ Marcelo Chiapparini [EMAIL PROTECTED]
Re: cron vs anacron
Marcelo Chiapparini wrote: Thanks a lot to all people who taught me about cron vs anacron! On Wed, 13 Dec 2000 16:19:22 -0800, Erik Steffl wrote: and you are not supposed to turn off the computer! ever! :-)) erik Well, I was asking about my pc at home. From monday to friday I can only spend two or three hours per day with it, why keep it turned on the other 21hs? :) run seti? to get good uptime? I was just kidding... erik
RE: cron vs anacron
On 13-Dec-2000 [EMAIL PROTECTED] wrote: Hi! Does cron work correctly in a system which is powered down periodically, like a pc at home? If it does, why does anacron exist? cron runs jobs at certain times. So, the cron.daily scripts are set to run at 2 in the morning. If your machine is not running, that job never happens. When you power the box on, cron does not look and see what jobs it did not run. So, if you power a machine on once a week, for 4 hours from 2 pm to 6 pm, no system cron job will ever run. This is what anacron solves. When the machine powers on it checks for missed jobs and runs them.
Re: cron vs anacron
if the system is down while something was scheduled to run, it will not run. there is a version of cron (don't remember the name) that runs everything that should have been run but wasn't (because system was down) right after the system starts, that might make anacron obsolete. and you are not supposed to turn off the computer! ever! :-)) erik [EMAIL PROTECTED] wrote: Hi! Does cron work correctly in a system which is powered down periodically, like a pc at home? If it does, why does anacron exist? Thanks in advance! Marcelo -- E-Mail: [EMAIL PROTECTED] Date: 13-Dec-2000 Time: 21:35:40 This message was sent by XFMail -- -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: cron vs anacron
on Wed, Dec 13, 2000 at 09:38:37PM -0200, [EMAIL PROTECTED] ([EMAIL PROTECTED]) wrote: Hi! Does cron work correctly in a system which is powered down periodically, like a pc at home? No. cron starts jobs at a specified time. If it does, why does anacron exist? See above. anacron checks to see what jobs were skipped during downtime. -- Karsten M. Self kmself@ix.netcom.comhttp://kmself.home.netcom.com/ Evangelist, Zelerate, Inc. http://www.zelerate.org What part of Gestalt don't you understand? There is no K5 cabal http://gestalt-system.sourceforge.net/http://www.kuro5hin.org pgpC5Z7lbwtL0.pgp Description: PGP signature
Re: cron vs anacron
On Wed, Dec 13, 2000 at 09:38:37PM -0200, [EMAIL PROTECTED] wrote:
Hi!
Does cron work correctly in a system which is powered down periodically,
like a pc at home? If it does, why does anacron exist?
It doesn't, which is why anacron exists.
By doesn't, the usual problem is that if you have cron jobs scheduled
for 6:30 am and your computer is always off from midnight to 7am, they
won't get executed. With anacron, they won't get executed at 6:30 am
since the system is off... but they will get executed roughly once a
day.
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Re: cron vs anacron
On Wed, 13 Dec 2000, Erik Steffl wrote: there is a version of cron (don't remember the name) that runs everything that should have been run but wasn't (because system was down) right after the system starts, that might make anacron obsolete. fcron, but it doesn't do ALL that Debian's cron do, at least not yet. As for making anacron obsolete, well, anacron is smaller and simpler. fcron does more but eats more memory and cpu. It's the usual choose the right tool for the job. and you are not supposed to turn off the computer! ever! :-)) Err... but how am I supposed to remove the lint inside the fans then? :P -- One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie. -- The Silicon Valley Tarot Henrique Holschuh pgpQNcVPNCne3.pgp Description: PGP signature
