[ZODB-Dev] Clustering ZEO Server with drbd

[garthpl at periweb.com]

I am planning a ERP5 deployment with ZEO. I have a working HA configuration on Centos 4.3 (should work without changes on RHEL4 but I have not tested) and  am willing  to contribute  it all to the community  if I can get help clustering ZEO. I will write a howto and contribute back to the zope documentation. Anybody interested?

Benji York <benji at zope.com> wrote: 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




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