Problem with subversion hooks scripts under Linux Apache Dav

Hello all,

I have a very strange problem with subVersion Hook scripts under Ubuntu Linux (Ubuntu 12.04.4 LTS (GNU/Linux 3.2.0-64-generic x86_64))., when accessing the repository via Apache2 WebDav. I'm using subversion 1.7.9 .

The WebDav Configuration is as follows:
<Location /sbox>
    DAV svn
    SVNPath /var/subversion/repos17/sbox
    AuthType Basic
    AuthName "Subversion Sandbox Repository"
    AuthUserFile /etc/subversion/etc/svn-auth-file
    Require valid-user
    AuthzSVNAccessFile /etc/subversion/etc/svn-acl
</Location>

I tried with a post-commit hook (I wanted Trac to be informed about commits : /usr/bin/trac-admin /var/lib/trac/YourProject changeset added "$1" "$2") but the same problem occurs also for all other hook scripts, no difference what I use as content of the script.

Let me explain my problem:

I used a Tortoise Client on a remote Windows machine and tried there a commit. I always got the error message:
Failed to start '/var/subversion/repos17/sbox/hooks/post-commit' hook

I tried all possible changes at my hook script and at the end it consists only of the following two lines:
#!/bin/sh
/bin/echo "Dies ist ein Test fuer Pre-Commit."

But I got still the same error message.
The execute bit was set for the script and the file owner was www-data .

A local call of the script works perfect:
sudo -u www-data env - ./post-commit /var/subversion/repos17/sbox/ 175

When I do a direct commit on the subVersion server (without apache Dav access: ) the post-commit script works fine. I could verify this because after such a commit, the Trac shows the new changeset.

The very strange thing was, that when I did the tests yesterday the hook script (even called via Apache DAV from Tortoise at a remote client) sporadically was executed but it also failed sporadically without any changes in the script.
I checked in google for similar problems and the only helpful hint I found was an entry from 2008 : http://www.wandisco.com/svnforum/threads/31927-Hook-does-not-work-%28and-yes-absolute-paths-are-used-*g*%29; : The reason for this was, that the system only has limited resources available, such as main memory.
After reducing the number of server processes and/or threads created by Apache at startup, the SVN post-commit hook worked fine when committing to the repository. )

I restarted apache service but it didn't help. Also a reboot of the complete machine did not help. htop showed that memory is still available:
Mem : 125 /3954 MB
Swp : 65 / 3068

I checked also the apache log but I found no relevant error message, even when I used LogLevel debug in the apache2.conf .

Can you please give me any hint what is wrong.

Can I see in any log /trace why the hook script can not be started?

Thanks in advance.

Best regards Michael
Received on 2014-06-26 10:20:50 CEST