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Re: Repository synchronization between two cvs server

From: Todd Denniston
Subject: Re: Repository synchronization between two cvs server
Date: Wed, 05 Jul 2006 08:59:08 -0500
User-agent: Mozilla Thunderbird 1.0.8-1.1.fc4 (X11/20060501)

Arthur Barrett wrote:

Some users are working on cvs server1 for Project1. Other some users are working on cvs server2 at remote location for same Project(Project1).

I need to merge (synchronised merging) between these two cvs server repositories without any data lose and end result to be one repository(project1) that should
be same (mirrored copy) in both cvs server
This process should be conducted in regular interwel.

This is a contentious topic.

CVS was designed for use on networks much slower than todays, and so
therefore operates well in a multi site environment without the need for
repository replication.

However there are some good business reasons for repository replication
and there are various tools to help you do that, eg: cvsup, rsync,
unison.  However none of these will give you specifically what you are
asking for.

For disaster recovery replication of CVS and other on disk data, if you are using Linux servers, you may also want to look at drbd.

CVSNT (free/GPL for Unix/Linux, Windows etc) supports in-built basic
repository replication and access control for free or you can contact
the company I work that wrote CVSNT to implement a more comprehensive
solution closer to what you have asked for.  There are many CVS
consultants who will implement multi site solutions for you in addition
to us listed here:

However let me stress - CVS does not require repository replication in
order to allow teams of people at multiple locations to efficiently use
the server.  Replication strategies should address a business
requirement (eg: disaster recovery) and be designed to address those
requirements and have a tangible cost/benefit.

The core requirement of your versioning system is NOT replication, so if
you do require support - in my opinion a solution from Ximbiot or March
Hare who have developed CVS/CVSNT for many years for the open source
community and have intimate knowledge and of the underlying foundations
will serve you best.


Arthur Barrett

Todd Denniston
Crane Division, Naval Surface Warfare Center (NSWC Crane)
Harnessing the Power of Technology for the Warfighter

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