wiki:BluePrint/Synchronisation

Version 4 (modified by Fran Boon, 13 years ago) ( diff )

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This page hosts the detailed specification for the Blueprint for the Synchronisation.

We need to be able to support synchronising data between instances:

In S2 this is done by record ids being UUIDs (Universally Unique IDs) built from each instance's 'base_uuid'

There is a sync_instance table:

CREATE TABLE sync_instance (
    base_uuid VARCHAR(4) NOT NULL, -- Instance id
    owner VARCHAR(100), -- Instance owner's name
    contact TEXT, -- Contact details of the instance owner
    url VARCHAR(100) DEFAULT NULL, -- Server url if exists
    last_update TIMESTAMP NOT NULL, -- Last Time sync with the instance
    sync_count INT DEFAULT 0, -- Number of times synchronized
    PRIMARY KEY(base_uuid)
);

Web2Py users have tried to solve the same issue:

Inc through UUIDs:

There is a 1-table example appliance which has this functionality (however the download seems to be corrupted):

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