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by kfool
5225 days ago
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Sorry for not disclosing I work on ChronicDB. The author of the 6b article kindly provided more information about the time it took for the migration: http://news.ycombinator.com/item?id=3621561 A couple of limitations of the Percona tool are related to changing data in tables with ON DELETE and ON UPDATE foreign key constraints and possible lock-ups of tables. It is a bi-directional replication tool, so it has to deal with the master-master replication case and as such does not guarantee data consistency. Still the tool is helpful in many cases and congrats to Percona for developing it. Replication safety is a non-trivial problem in general. |
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