[Spread-users] Changing configs?
dustin at v.igoro.us
dustin at v.igoro.us
Wed Jan 3 00:08:23 EST 2007
Today I needed to add a new box to a spread ring that already had nine
machines in it -- ideally without taking the ring down in the process.
I started up spread on the new box with the "new" configuration (with
ten machines), and it wouldn't talk to the other boxes. Then I started
restarting spread on other boxes with the new configuration.
As far as I could tell, during this time there were two separate rings
-- the "old" configuration and the "new" configuration. This was
probably most problematic with my wackamole groups -- during the time my
wackamole groups were straddling the two spread rings, each virtual IP
was "owned" by two machines!
This seems like a common quandry for spread users.. how are other people
handling this?
Dustin
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