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Re: triggering a program in web server

by gjb (Vicar)
on Aug 18, 2003 at 10:44 UTC ( [id://284535]=note: print w/replies, xml ) Need Help??


in reply to triggering a program in web server

As an addendum to arthas's post, you may also use a cron facility on server A that runs the transfer program every so often (modified so that it tests whether there's something to trasnfer).

Just my 2 cents, -gjb-

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Re: Re: triggering a program in web server
by l3nz (Friar) on Aug 19, 2003 at 13:23 UTC
    Probably the reason why choosing synchronous execution (script A calls script B) or asynchronous is how much time B takes and how you want to handle B's errors. In a synchronous environment you may report B's error to the user (say, destination server is down) and abort the process. If B is expected to be quite fats (say less than a few seconds) handling B synchronously is probably both easier and sensible. If B runs in 'daemon mode', ie as a daemon or using repeated sleep's, you'll have to handle B's errors anyhow using a log or something.
    My $.02
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