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Displaying posts with tag: relay (reset)

An odd spot in relay slaves
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A relay slave is a slave that writes to its binary log the stream of commands received from the master, thus enabling other slaves to replicate.
This is often used to relieve the master from heavy traffic created by many slaves asking for binlog events.
A typical scenario is when a master has a few dozen slaves, and instead of dealing with all of them directly, uses four relay slaves, each one dealing with 6 slaves.
So, where's the trick? The trouble comes if you change replication format after you start the slave.
Example. One master (M), two relay slaves (R1, R2), with four






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