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From Ted Dunning <>
Subject Re: [math] Monitoring iterative algorithms
Date Wed, 10 Aug 2011 18:39:56 GMT
I have been able to manage some long-lived branches in Zookeeper and Mahout
using git.

The key was to rebase the branch frequently.  That allowed me to spread the
complexity of the ultimate merge out into a lot of small decisions, each of
which was pretty simple and could be tracked back to a small change in

The branch in Zookeeper was a particularly interesting case since it
involved changes to dozens of files with lots of commits from multiple
people on the branch and even more changes on the trunk while the branch
lasted.  The branch was not even a very short-term thing ... from first
commit to final merge was 6-7 months.

The key here was to not get too far behind.  During active periods of
development, I rebased almost every day.

On Wed, Aug 10, 2011 at 11:21 AM, Luc Maisonobe <>wrote:

> As for the cost of branching, it is almost trivial. svn copy
>> https://fromurl
>> https://tourl
> The cost of branching is trivial. The cost of merging back is huge.

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