• Kirill Smelkov's avatar
    bigfile: BigFile backend to store data in ZODB · 4174b84a
    Kirill Smelkov authored
    This adds transactionality and with e.g. NEO[1] allows to distribute
    objects to nodes into cluster.
    We hook into ZODB two-phase commit process as a separate data manager,
    and synchronize changes to memory, to changes to object only at that
    Alternative would be to get notified on every page change, and mark
    appropriate object as dirty right at that moment.
    But I wanted to stay close to filesystem design (we don't get
    notification for every file change from kernel) - that's why it is done
    the first way.
    [1] http://www.neoppod.org/
file_zodb.py 14.2 KB