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From: Lars Marowsky-Bree <lmb@suse.de>
To: Hans Reiser <reiser@namesys.com>
Cc: Reiserfs List <reiserfs-list@namesys.com>
Subject: Re: reiser4 data journalling?
Date: Wed, 3 Sep 2003 12:52:11 +0200	[thread overview]
Message-ID: <20030903105211.GC5762@marowsky-bree.de> (raw)
In-Reply-To: <3F55170E.1080603@namesys.com>

On 2003-09-03T02:17:50,
   Hans Reiser <reiser@namesys.com> said:

> No, isolation is not yet implemented and won't be unless we come up with 
> some more funding from somewhere.  The txnmgr seems to be structured to 
> handle isolation, but....

Ah, okay. Sorry, I think I had older plans in mind and hadn't checked
how far the current roadmap matched up to them ;-)

> The new thing with reiser4 is that if you do that write of 1MB to a 
> file, and perhaps updates to 63 other files as well, as part of an atom, 
> it will either all survive a crash, or none of it will.  We have 
> considered using the term "transcrash" for this.

So it's ACD and not ACID ;-) Sounds good. How is this weak transaction
exported to userspace, ie how do I signal BEGIN and COMMIT/ABORT?



Sincerely,
    Lars Marowsky-Brée <lmb@suse.de>

-- 
High Availability & Clustering		ever tried. ever failed. no matter.
SuSE Labs				try again. fail again. fail better.
Research & Development, SuSE Linux AG		-- Samuel Beckett


  reply	other threads:[~2003-09-03 10:52 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-08-28 17:25 reiser4 data journalling? Tupshin Harper
2003-08-28 17:42 ` Nikita Danilov
2003-08-28 20:48   ` Hans Reiser
2003-08-29  0:18     ` Tom Vier
2003-08-29  0:21       ` Hans Reiser
2003-08-29  1:23         ` Mike Fedyk
2003-08-29  5:08           ` Oleg Drokin
2003-08-29 17:48             ` Hans Reiser
2003-08-29 18:15               ` Nikita Danilov
2003-08-29 18:17                 ` Nikita Danilov
2003-08-29 21:43                 ` Hans Reiser
2003-08-29 21:56                   ` system_lists
2003-08-30 18:22                   ` Andi Kleen
2003-09-02 22:21                     ` Hans Reiser
2003-09-03  2:05                       ` Tom Vier
2003-08-29 21:47           ` Hans Reiser
2003-08-29 13:12       ` Lars Marowsky-Bree
2003-09-02 22:17         ` Hans Reiser
2003-09-03 10:52           ` Lars Marowsky-Bree [this message]
2003-09-03 16:56             ` Hans Reiser

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