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Re: restart cron in Solaris
From: |
Darren Dunham |
Subject: |
Re: restart cron in Solaris |
Date: |
Wed, 12 Dec 2001 18:18:12 -0800 (PST) |
> In the context of cfengine, the mechanism for maintaining crontabs
> that seems to work the most best is to maintain cfengine copies of
> the crontabs in another directory of your choice and to operate on
> those. Code a class that invokes "crontab filename" whenever one
> of the copies changes. For example, you would define a class in the
> editfiles: actions on changing joe's crontab. Truth of that class
> invokes crontab joe.
The problem(?) arises when maintaining multiple crontabs (or any crontab
other than root).
Because the 'crontab <filename>' offers no means to specify the user (as
the crontab -l does), you must run it as the user. That usually
involves doing su's in a script and using temp files. I like to avoid
both of those items.
1) Put crontab in tempfile.
2) su $user "crontab tempfile"
3) rm tempfile
An alternative is to use the same mechanism that crontab uses.
1) Put the crontab in place.
2) Send a particular piece of data to the cron FIFO.
This is annoying because you're using an unpublished interface, so it's
quite non-portable and could break in the future, but I hate doing su's
in scripts when I can avoid them. The actual message isn't very
difficult to send, and I do it in a perl script (outside of cfengine).
Another alternative is more brute-force.
1) Put the crontab(s) in place.
2) Kill and restart cron.
--
Darren Dunham ddunham@taos.com
Unix System Administrator Taos - The SysAdmin Company
Got some Dr Pepper? San Francisco, CA bay area
< How are you gentlemen!! Take off every '.SIG'!! >
- Re: restart cron in Solaris, (continued)
- Re: restart cron in Solaris, Dan Zubairi, 2001/12/10
- Re: restart cron in Solaris, Katherine Morris, 2001/12/10
- Re: restart cron in Solaris, Katherine Morris, 2001/12/10
- Re: restart cron in Solaris, Daniel Nilsson, 2001/12/11
- Re: restart cron in Solaris, Katherine Morris, 2001/12/12
- Re: restart cron in Solaris, Rich Dempsey, 2001/12/12
- Re: restart cron in Solaris,
Darren Dunham <=
- Re: restart cron in Solaris, Rich Dempsey, 2001/12/12
- Re: restart cron in Solaris, Marion Hakanson, 2001/12/13
- Re: restart cron in Solaris, Ted Zlatanov, 2001/12/14
Re: encrypt.c: In function `LoadSecretKeys':, Rune Mossige, 2001/12/07