[ZODB-Dev] Clustering ZEO Server with drbd

[Benji York]

Christian Theune wrote:
> In the end, this might not be exactly HA because you'll have a period of 
> time that isn't covered and may stretch for quite a while.

An interesting idea:  use drdb to create an HA pair for the read/write 
ZEO service, and also use a read-only ZRS secondary.  That way when the 
primary r/w ZEO server went down, read transactions could still complete 
until the second r/w ZEO server could start.
-- 
Benji York
Senior Software Engineer
Zope Corporation