MySQL 8.3: Purging data from your InnoDB Cluster
Maintaining a production dataset at a manageable size can present a considerable challenge during the administration of a MySQL InnoDB Cluster.

Old Days

Back in the day when we only had one main copy of our data (the source), and one read copy (the replica) that we used to look at current and old data f
https://lefred.be/content/mysql-8-3-purging-data-from-your-innodb-cluster/
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MySQL 8 and Replication Observability
Many of us, old MySQL DBAs used Seconds_Behind_Source from SHOW REPLICA STATUS to find out the status and correct execution of (asynchronous) replication.

Please pay attention of the new terminology. I'm sure we've all used the old terminology.

However, MySQL replication has evolved a lot and the repli
https://lefred.be/content/mysql-8-and-replication-observability/
#80 #GroupReplication #HeatWave #MySQL #Performance_Schema #Replication #SYS