Mailinglist Archive: opensuse (1620 mails)

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[opensuse] Use crontabs (was Re: openSUSE-13.1: at 17:00 system begins thrashing: What is cause?)
Anton Aylward wrote:
On 11/19/2014 11:32 PM, Ruben Safir wrote:
On Tue, Nov 18, 2014 at 05:27:53PM -0600, Philip Amadeo Saeli wrote:
Help!

It has to have somethng to do with systemd

Either that's a joke or this is an obsession with you, blaming
everything you dislike, that other people complain about, on systemd.
----

Like "jdd's" comment on using film
based pictures vs. electronic, you seem to miss <content=silly> based
humor.


That's not to say that you can't do exactly what this present scheme is
going using systemd timers:

Oh, wait! That's actually easier! You can set io scheduling priority
as well as cpu scheduling priority!
----
Gee... and shell scripts have only had that ability for a decade
or so?


Personally, as a 24/7 style user I think this idea of scheduling *ALL*
the jobs to run *every* day at the same time is what is wrong headed.
----
If you use 'crontabs', they run like the old cron. Only things
put in /etc/cron.{timeperiod}, get run under the new method.

Backups and snapshots -- all get run with remarkable regularity:
Home-2014.10.23-03.07.02 Data -wi-ao--- 800.00m
Home-2014.10.31-03.07.03 Data -wi-ao--- 892.00m
Home-2014.11.04-03.07.03 Data -wi-ao--- 1.65g
Home-2014.11.06-03.07.06 Data -wi-ao--- 884.00m
Home-2014.11.08-03.07.02 Data -wi-ao--- 740.00m
Home-2014.11.10-03.07.02 Data -wi-ao--- 250.97g
Home-2014.11.12-03.07.07 Data -wi-ao--- 1.89g
Home-2014.11.17-03.07.07 Data -wi-ao--- 1.39g
Home-2014.11.18-03.07.05 Data -wi-ao--- 4.75g
Home-2014.11.20-03.07.08 Data -wi-ao--- 1016.00m
Home-2014.11.21-03.07.02 Data -wi-ao--- 1.60g
Home-2014.11.22-03.07.02 Data swi-aos-- 1.50t Home 0.12
----
Snapshot partitions and when they were created by this crontab entry:

7 3 * * * /bin/bash /home/law/bin/snaphome

Notice the timestamp embedded in the names... all within 2-8 seconds
past 3:07am.


The old CRON and the systemd.timer allowed for things like "not at
weekends" and "last Friday of the month". And also for more than once a
day but not hourly.
---
Cron can still do this:

30 4 2 1-12/3 * /root/bin/dumpshare 0
30 4 9-31/7 1-12/3 * /root/bin/dumpshare
30 4 2-31/7 2-12/3 * /root/bin/dumpshare
30 4 2-31/7 3-12/3 * /root/bin/dumpshare



Perhaps we need an alternate package, rather like the ability to install
Postscript OR Exim OR Sendmail. Something like Laptop-CRON or
Desktop-CRON or Server-CRON. The current cron being the Laptop-CRON.

I think you want "AND" -- so you can choose what you want,
like:

rpm -qa|grep cron

cronie-1.4.8-50.1.2.x86_64
cron-4.2-50.1.2.x86_64

Just use both. Wait, don't tell me, the new Xd doesn't allow this?



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