On Oct 19, 2004, at 5:21 PM, Yanni Chiu wrote:

> In a talk at Smalltalk Solution '04, on GemStone usage a WAMU, the
> approach taken was a lazy conversion. So two class definitions/method
> dictionaries were present in production, but the conversion took
> place JIT, IIUC. It had to be done this way because the large volume
> of data to be converted meant the downtime for conversion was too long.

Yes, which is a good argument for migrate-on-load approaches (vs. 
migrate-in-a-workspace, as John Pierce was describing).  I'm pretty 
sure that Niall Ross said that this is how Kapital at JPMorgan works as 
well.

Avi