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Displaying posts with tag: MySQL 5.6 new features (reset)

Beware of MySQL 5.6 server UUID when cloning slaves
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The other day I was working on an issue where one of the slaves was showing unexpected lag. Interestingly with only the IO thread running the slave was doing significantly more IO as compared to the rate at which the IO thread was fetching the binary log events from the master.

I found this out by polling the SLAVE STATUS and monitoring the value of Read_Master_Log_Pos as it changed over time. Then compared it to the actual IO being done by the server using the pt-diskstats tool from the excellent Percona Toolkit. Note that, when doing this analysis, I had already stopped the slave SQL thread

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New MySQL features, related technologies at Percona Live London
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The upcoming Percona Live London conference, November 11-12, features quite a number of talks about the latest MySQL features and related technologies. There will be a lots of talks about the new MySQL 5.6 features:

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