In a recent post the MySQL product managers asked the community for feedback about proposed new defaults. One of the proposals is to make log-slave-updates on by default.
There are other important options that require some debate. They all look reasonable to me. This one, instead, which implies funnelling the replication events in a slave to its binary log, is questionable.
Let's start for the reason why it is a good idea. The scenario in which it makes sense is when you want a slave to be a master of one or more slaves. This is a common scenario in many cases where you need …
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