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Re: Corruption when using --threads

From: Troy Curtis Jr <troycurtisjr_at_gmail.com>
Date: Wed, 19 Mar 2008 20:50:51 -0500

On Wed, Mar 19, 2008 at 7:53 PM, Landon Bradshaw
<landon.bradshaw_at_justleapin.com> wrote:
> We've been having a problem with our repository and finally had the time to
> do some more testing ... the results are that we needed to drop "--threads"
> from our svnserve invocation and just let it run via fork()
> Environment: CentOS5
> Revision: 1.4.2 (CentOS5) and 1.4.4 (Ubuntu)
> DB-type: fsfs
> Following these steps I could get a corruption within 10 revisions ...
> Setup:
> * create the repo
> * create 2 subdirectories
> * commit a set of text files into Dir1 (20 files all less than 2KB)
> * commit a set of large binary files into Dir2 (6 files of 2.5MB to 16MB)
> Stress:
> * By randomly choosing a text file to change I created a new revision for
> Dir1 containing 4 to 9 changed files
> * By randomly swapping the filename of 2 files in Dir2 I created a large
> changeset for Dir2
> * Serial commits of Dir2 were continuously occurring while I was randomly
> choosing a sleep time between serial commits of Dir1 (<16 seconds)
> I would trigger 10 loops of the large swap/commit of Dir2 while triggering
> 20 loops of revisions from Dir1 and I would reliably get the corruption
> before the 10 loops of the binary commits had finished ... "svn:
> Decompression of svndiff data failed"
> Removing the "--threads" from the svnserve options and I could get through
> over 400 commits without an error ... restarting svnserve with that option
> and again I would corrupt my repository within 10 commits ...
> Is this worthy of posting a bug report? Does someone want my scripts to test
> it out themselves?
> ...Landon

I for one would like to see if I could duplicate that corruption.
Could you post your script?


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Received on 2008-03-20 02:52:21 CET

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