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Re: fsfs still very unstable with simultaneous commits

From: D.J. Heap <dj_at_shadyvale.net>
Date: 2004-06-09 14:54:50 CEST

C.A.T.Magic wrote:
>
>
> i created a few batch files to reproduce the effect.
> the test is using file:/// effect.
> i think it doesn't reproduce on remote repositories,
> because its essential that both commands run at the
> same time and same speed. rendom network delay may
> reduce the occourence.
> i test this on a hyperthreading cpu, and the effect is
> most noticeable when both commits run at the same frequency,
> but almost not reproducable if they run at different speeds.
[snip]
>
> i hope this helps to reproduce the errors
>
> =====
> c.a.t.

I can confirm that this quickly produces various errors on my local NTFS
harddisk on WinXP if two are run simultaneously, where one runs fine by
itself:

Sending Version.h
Transmitting file data .svn: Commit failed (details follow):
svn: Invalid diff stream: insn 3 overflows the target view

Sending Version.h
svn: Commit failed (details follow):
svn: Reference to non-existent node '0.0.t27-1' in filesystem
'/Temp/TestFS/Repos/db'

Sending Version2.h
Transmitting file data .svn: Commit failed (details follow):
svn: Checksum mismatch for resulting fulltext
(Version2.h):
    expected checksum: 375c8b0d2a12aaf855e0adfc3b722ed7
    actual checksum: 86e8fcb21febb7df17089dc11c32ede1

DJ

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Received on Wed Jun 9 14:55:46 2004

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