[Setup] ZODB Replicated Storage experiences?
hector.velarde at gmail.com
Thu Aug 15 02:48:53 UTC 2013
as many of you may know by now, ZODB Replicated Storage (ZRS) was
released as open source software last May:
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
does anybody here has any experience with it? any configuration
examples? how does a secondary storage behaves regarding blobs?
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