...and a question (SHA1 UUIDs)

Ken Murchison murch at andrew.cmu.edu
Fri Aug 10 12:06:15 EDT 2007

David Carter wrote:
> On Mon, 6 Aug 2007, Ken Murchison wrote:
>> My gut is to use the 'replace' patch.  I'm not comfortable with the 21 
>> byte scenario.
> I agree that 21 bytes is likely to be a pain to maintain long term.
>> If we need a UUID schema version, we can always use a new MINOR_VERSION.
> This sounds like a plan. For the time being I am using the first 11 
> bytes of message MD5 sums on my Cyrus 2.3 systems, just like Fastmail.
> It would be useful to have a migration route to full 20 byte SHA1 UUIDs. 
> Zero padding existing schema 1 and schema 2 UUIDs is probably good enough.

I'm going to leave this stuff out of 2.3.9 and add it in for 2.3.10.

Kenneth Murchison
Systems Programmer
Project Cyrus Developer/Maintainer
Carnegie Mellon University

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