Date: Wed, 08 Nov 2006 12:25:09 +0100 From: nicky <nicky@valuecare.nl> To: Norberto Meijome <freebsd@meijome.net> Cc: freebsd-questions@freebsd.org Subject: Re: Parallel shell scripts. Message-ID: <4551BE95.6020103@valuecare.nl> In-Reply-To: <20061108221212.430b2ec2@localhost> References: <4551AC4A.2000108@valuecare.nl> <cb5206420611080221n3fde2772h3569a8ce8f9920dc@mail.gmail.com> <4551B8D2.3020502@valuecare.nl> <20061108221212.430b2ec2@localhost>
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Creating 'status files' does seem a little easier, more flexable as well.
Thanks for the advice, i'll look in to it some more and try to solve it
that way.
Thanks,
Nick
Norberto Meijome wrote:
> On Wed, 08 Nov 2006 12:00:34 +0100
> nicky <nicky@valuecare.nl> wrote:
>
>
>> The whole idea is this. I have to extract two different databases to csv
>> files. One takes about an 1 hour, the other 1.5 hours. The problem is my
>> time window, which is 2 hours. So extracting one after the other is not
>> an option. After both extractions are complete, it should load the csv
>> files into a target database.
>>
>
> Andrew has a point - I think you are going the *very* hard way around...
> an easier way , i think, may be :
> dump1.sh : handles extraction of first DB. Checks its own return status AND
> write to a tmp file flagging success or failure (i dont know, dump1.ok or
> dump1.bad... or different content which you can cat / grep for...)
>
> dump2.sh : same as dump1, with obvious differences.
>
>
> loader.sh : loops, check for both .ok flags , wait if not there yet and
> handle as it should.
>
> Launch a term, run screen (if running on a remote server..this would be a
> must, i think...) , launch dump1.sh, then from another session, dump2.sh . Or
> use cron if you dont like screen.
> and , of course, launch loop.sh to monitor them both...
>
> may have more components...but it's far easier to get it right, IMHO
>
> _________________________
> {Beto|Norberto|Numard} Meijome
>
> "He uses statistics as a drunken man uses lamp-posts ... for support rather
> than illumination." Andrew Lang (1844-1912)
>
> I speak for myself, not my employer. Contents may be hot. Slippery when wet.
> Reading disclaimers makes you go blind. Writing them is worse. You have been
> Warned.
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