...and a question (SHA1 UUIDs)
dpc22 at cam.ac.uk
Fri Aug 10 11:59:38 EDT 2007
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.
David Carter Email: David.Carter at ucs.cam.ac.uk
University Computing Service, Phone: (01223) 334502
New Museums Site, Pembroke Street, Fax: (01223) 334679
Cambridge UK. CB2 3QH.
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