June 19, 2013

Post: Three ways to know when a MySQL slave is about to start lagging

… this isn’t true, especially if you’re monitoring Seconds_behind_master instead of using mk-heartbeat, which is immune to this anomaly.

Comment: How to lag a slave behind to avoid a disaster

This is one of my favorite pt/mk tools, probably not unreasonable to say data poisoning, (particularly admin … backups are a must. Sheeri, are there any issues pt-heartbeat doesn’t solve regarding the monitoring issue?