https://bitbucket.org/zc/zc.zrs https://pypi.python.org/pypi/zc.zrs
according to its documentation, ZRS "provides database replication for ZODB. For each database, a primary storage and one or more secondary storages may be defined. The secondary storages will automatically replicate data from the primary storage.
"Replication is superior to back-ups because as long as secondaries are running, secondary data is kept updated. In the event of a failure of a primary storage, just reconfigure a secondary to be the primary, and it can begin handling application requests."
in the past we have been using RelStorage for high availability and replication but we are not extremely happy with it because, at least on our experience, on sites with lot of content creation can DB maintenance (packing) can be a little bit problematic. besides that, you also have to maintain 2 different technologies.
I just finished reading the documentation and, though fortunately it does not have doctest integrated, it also is not very clear, at least not for me.
I think ZRS could be a killer feature for large, mission critical Plone sites.
does anybody here has any experience with it? any configuration examples? how does a secondary storage behaves regarding blobs?
best regards -- Héctor Velarde
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