RelStorage A backend for ZODB that stores pickles in a relational database
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RelStorage Tags

ZODB backend zodb back-end database back-end backend ZODB back-end

RelStorage Description

A backend for ZODB that stores pickles in a relational database RelStorage is a free and open source storage implementation for ZODB that stores pickles in a relational database. PostgreSQL 8.1 and above (via psycopg2), Oracle 10g (via cx_Oracle) and MySQL 5.0.x (via MySQLdb 1.2.2 and above), are currently supported. RelStorage replaces the PGStorage project. Here are some key features of "RelStorage": · It is a drop-in replacement for FileStorage and ZEO. · There is a simple way to convert FileStorage to RelStorage and back again. You can also convert a RelStorage instance to a different relational database. · Designed for high volume sites: multiple ZODB instances can share the same database. This is similar to ZEO, but RelStorage does not require ZEO. · According to some tests, RelStorage handles high concurrency better than the standard combination of ZEO and FileStorage. · Whereas FileStorage takes longer to start as the database grows due to an in-memory index of all objects, RelStorage starts quickly regardless of database size. · Supports undo and packing. · Free, open source (ZPL 2.1) What's New in This Release: · RelStorage now implements IMVCCStorage, making it compatible with ZODB 3.9.0b1 and above. · Removed two-phase commit support from the PostgreSQL adapter. The feature turned out to be unnecessary. · Added MySQL 5.1.34 and above to the list of supportable databases. · Fixed minor test failures under Windows. Windows is now a supportable platform.

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