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Re: migration of CVS repositery from one machine to another

From: Jim Hyslop
Subject: Re: migration of CVS repositery from one machine to another
Date: Thu, 16 Jun 2005 09:09:53 -0400
User-agent: Mozilla Thunderbird 1.0.2 (Windows/20050317)

Todd Denniston wrote:
moving a repo is covered in the manual[1].
0) get everyone to do a final checkin and then release their sandboxes
(mainly prevent confusion later).
1) Back up the repository [2].
2) take the backup to the other machine.
3) restore from backup.
4) configure the machine to serve cvs.

4a) test the configuration, including all scripts.

5) update everyone's CVSROOT values.

There is, of course, the possibility that someone might forget that the migration is happening, and check in a change to the old repository while the migration is in process. To eliminate this possibility, just create an empty file named CVSROOT/writers between steps 0 and 1. This also adds step 6: delete CVSROOT/writers file.

Step 5 is actually a rather difficult task. In order to make future migrations easier, I recommend that your server's actual machine name is *not* the one that is published to the users. Instead, set up an alias, which your system's DNS resolves to the actual server. That way, you can eliminate step (5) in all future migrations.

IOW, set up an alias in your DNS entries, called A DNS lookup resolves to the actual machine. Then, in future migrations, you simply perform all the steps above, except step 5 now becomes: Change DNS entries to point to the new machine.


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