On Mon, Aug 27, 2012 at 2:37 PM, Vincent Pelletier <vincent@nexedi.com> wrote:
NEO aims at being a replacement for use-cases where ZEO is used, but with better scalability (by allowing data of a single database to be distributed over several machines, and by removing database-level locking), with failure resilience (by mirroring database content among machines). Under the hood, it relies on simple features of SQL databases (safe on-disk data structure, efficient memory usage, efficient indexes).
How does NEO compare to RelStorage? NEO appears to implement the storage roughly in the same way; store pickles in tables in a SQL database. Some differences that I can see from reading your email: * NEO takes care of replication itself; RelStorage pushes that responsibility to the database used. * NEO supports MySQL and sqlite, RelStorage MySQL, PostgreSQL and Oracle. * RelStorage can act as a BlobStorage, NEO can not. Anything else different? Did you make any performance comparisons between RelStorage and NEO? -- Martijn Pieters