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Why do Virus Scanners hate Subversion

From: Jesse Hogan <jessehogan0_at_gmail.com>
Date: 2006-05-02 19:31:28 CEST

Hello,
   When I do large checkouts and large merges on Windows NT using either
svn.exe or TSVN I often get error messages like this.

svn: In directory 'Databases/eMax/StoredProcs'
svn: Can't move source to dest
svn: Can't move
'Databases/eMax/StoredProcs/_svn/tmp/props/dbo.spConfigWriteStartingConfiguration.PRC.svn-work'
to
'Databases/eMax/StoredProcs/_svn/props/dbo.spConfigWriteStartingConfiguration.PRC.svn-work':
Permission denied

If I repeat the checkout or merge it will either work or fail on a different
file.

I've done a little research on these types of error messages and the only
explanation I've found is that a virus scanner is tampering with the newly
downloaded files. This seems to be what I am seeing because I can disable
the virus scanner to get the checkout to work. Am I right in blaming virus
scanners for these types of error message. Also, what exactly is happening.
Is the virus scanner placing a lock on these files which causes svn to
abend. Can anything be done to make svn more tolerant of virus scanners. I
hope so because this is one of the first things a user sees when (s)he
begins using svn which, I have witness, leads to bad impressions.
Received on Wed May 3 04:06:45 2006

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