Re: Noting EVERY File Write/Change/Delete in (near) Real Time ???

From	Robert Riches <spamtrap42@jacob21819.net>
Newsgroups	comp.os.linux.misc
Subject	Re: Noting EVERY File Write/Change/Delete in (near) Real Time ???
Date	2022-09-09 03:29 +0000
Organization	none-at-all
Message-ID	<slrnthlcod.ll0.spamtrap42@one.localnet> (permalink)
References	<QA-dna7ohPr3Nof-nZ2dnZfqn_th4p2d@earthlink.com>

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On 2022-09-09, 25B.Z969 <25B.Z969@noda.net> wrote:
> There are a couple of monitoring functions in Linux, but
> they usually require being directed at specific folders,
> which is not practical if there are hundreds/thousands
> or worse.
>
> I look at softRAID ... and it's doing exactly what I'm
> looking for as it mirrors changes super-promptly. There
> is SOME tap into the lower-level kernel functions that
> shows everything going on as it happens. I just don't
> see a system function, or any GCC library, that can
> provide the same utility. I'm not interested in duplication
> though, just logging what's happened so I can do other
> stuff with the info.
>
> Yea, yea ... you can run rsync on everything over and
> over and over forever and have it build a log of what's
> changed. I've used that for other projects. Alas that's
> WAY too slow and uses too much CPU. Scanning is NOT
> the way, I want notice of EVERY file write/rewrite
> as it happens.
>
> Any ideas ? Words of wisdom ? SoftRAID tells me it CAN
> be done, but I can't penetrate the code well enough to
> see how it's doing the job.

If by "softRAID" you mean mdadm-style kernel-supported RAID, that
is for mirroring disks on a local machine.  It works really well
for that purpose.

Perchance, might you be looking for something closer to a
Distributed Replicated Block Device, aka DRBD?

https://en.wikipedia.org/wiki/Distributed_Replicated_Block_Device

HTH

-- 
Robert Riches
spamtrap42@jacob21819.net
(Yes, that is one of my email addresses.)

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Noting EVERY File Write/Change/Delete in (near) Real Time ??? "25B.Z969" <25B.Z969@noda.net> - 2022-09-08 22:55 -0400
  Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Robert Riches <spamtrap42@jacob21819.net> - 2022-09-09 03:29 +0000
    Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "25B.Z969" <25B.Z969@noda.net> - 2022-09-09 23:41 -0400
      Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Robert Riches <spamtrap42@jacob21819.net> - 2022-09-10 04:15 +0000
        Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "25B.Z969" <25B.Z969@noda.net> - 2022-09-10 22:51 -0400
  Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2022-09-09 01:19 -0400
    Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Richard Kettlewell <invalid@invalid.invalid> - 2022-09-09 08:21 +0100
      Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "25B.Z969" <25B.Z969@noda.net> - 2022-09-09 23:56 -0400
  Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Richard Kettlewell <invalid@invalid.invalid> - 2022-09-09 08:22 +0100
    Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "25B.Z969" <25B.Z969@noda.net> - 2022-09-10 00:09 -0400
      Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? The Natural Philosopher <tnp@invalid.invalid> - 2022-09-10 14:14 +0100
        Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "25B.Z969" <25B.Z969@noda.net> - 2022-09-14 21:54 -0400
  Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Grant Taylor <gtaylor@tnetconsulting.net> - 2022-09-09 23:48 -0600
    Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? John-Paul Stewart <jpstewart@personalprojects.net> - 2022-09-12 19:48 -0400
      Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "25B.Z969" <25B.Z969@noda.net> - 2022-09-15 23:44 -0400
        Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "26C.Z968" <26C.Z968@noada.net> - 2022-09-30 00:18 -0400
          Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Fritz Wuehler <fritz@spamexpire-202209.rodent.frell.theremailer.net> - 2022-09-30 14:39 +0200
            Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "26C.Z968" <26C.Z968@noada.net> - 2022-10-01 00:30 -0400
              Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Joe Beanfish <joebeanfish@nospam.duh> - 2022-10-04 14:18 +0000
                Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Joe Beanfish <joebeanfish@nospam.duh> - 2022-10-04 14:25 +0000
                Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "26C.Z968" <26C.Z968@noada.net> - 2022-10-14 23:30 -0400
                Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? The Natural Philosopher <tnp@invalid.invalid> - 2022-10-15 08:53 +0100
                Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "26C.Z968" <26C.Z968@noada.net> - 2022-10-15 22:34 -0400
                Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? The Natural Philosopher <tnp@invalid.invalid> - 2022-10-16 11:12 +0100
                Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "26C.Z968" <26C.Z968@noada.net> - 2022-10-16 21:51 -0400
                Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Anssi Saari <as@sci.fi> - 2022-10-17 11:50 +0300
                Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Richard Kettlewell <invalid@invalid.invalid> - 2022-10-17 17:58 +0100
                Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Richard Kettlewell <invalid@invalid.invalid> - 2022-10-16 12:24 +0100
                Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "26C.Z968" <26C.Z968@noada.net> - 2022-10-16 21:12 -0400
                Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Rich <rich@example.invalid> - 2022-10-18 14:15 +0000
                Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? "26C.Z968" <26C.Z968@noada.net> - 2022-10-27 00:38 -0400
          Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Rich <rich@example.invalid> - 2022-09-30 14:18 +0000
            Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Richard Kettlewell <invalid@invalid.invalid> - 2022-09-30 20:54 +0100
          Re: Noting EVERY File Write/Change/Delete in (near) Real Time ??? Richard Kettlewell <invalid@invalid.invalid> - 2022-09-30 20:53 +0100

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