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Re: Subversion Berkeley DB error

From: Blair Zajac <blair_at_orcaware.com>
Date: Fri, 14 Mar 2008 17:22:58 -0700

Troy Curtis Jr wrote:
> On Fri, Mar 14, 2008 at 2:42 PM, Ryan Schmidt
> <subversion-2008a_at_ryandesign.com> wrote:
>> On Mar 14, 2008, at 00:38, <geetha.kirubakaran_at_wipro.com>
>>
>> <geetha.kirubakaran_at_wipro.com> wrote:
>>
>> > I (Admin) created the repository and i did a checkout of the
>> > repository. The repository has directories created for each member
>> > in the project.
>> >
>> > Initially, the admin as well as the users were able to do a
>> > checkout in their working directory/logn\in.
>> >
>> > But later, when i(as admin) did a checkout of the repository, it
>> > gave some message saying "needing recovery". So i did svnadmin
>> > recover repos path. Once done I(admin) is able to do checkout and
>> > checkin.
>> >
>> > But users are not able to do checkout even after this.
>> >
>> > Everybody(Users) when they use svn commands or when they do a
>> > checkout they get error message as follows:
>> >
>> > svn: Unable to open an ra_local session to URL
>> > svn: Unable to open repository 'file:///home/ams_admin/
>> > TRAINING_BATCH_07/repository/.svn_repository/trunk'
>> > svn: Berkeley DB error while opening environment for filesystem /
>> > home/ams_admin/TRAINING_BATCH_07/repository/.svn_repository/db:
>> > I feel this is something related to the dB config file in dB
>> > directory. Could you please tell me how should i proceed.
>> >
>> > Could you please help me out in this?
>>
>> Several users accessing a repository via the file:///-protocol is a
>> recipe for disaster. Please switch to using svnserve or apache to
>> serve your repository, and put the repository itself in a location
>> where only the user under which these services are running can read
>> from and write to the repository.
>>
>>
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>>
>
> Right, and the REASON for this is permissions. There are a lot of
> files that get opened, read, and written to. To do it right you have
> to be very careful that all the users have the same primary group and
> that the appropriate umask is set up so that all the files the users
> create/modify have group write permissions and are owned by the right
> group. And all this assumes that you are running a *nix variant. I'm
> not sure what you have to do on Windows.
>
> In other words it is a LOT easier to have just one user accessing the
> repository files directly, and that is whatever user is running the
> svnserve or apache process. Apache can be a little tricky to get
> working just right (not TOO bad for a simple setup), but svnserve is
> very easy.
>
> Personally I always like to know WHY I shouldn't do something.

If the repository is on NFS, then you need a good NFS server that supports locks
to ensure that a BDB repository works. Using a NetApp NFS server is safe, as
CollabNet does that, but I'm not aware of using any other NFS servers.

Blair

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Received on 2008-03-15 01:23:27 CET

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