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Percona Replication Lag

Percona

Monitor **slave replication lag** via pt-heartbeat, which is provided by the Percona toolkit. Percona's method is considered more reliable than MySQL's internal Seconds_Behind_Master metric.

Overview

Monitor slave replication lag via pt-heartbeat, which is provided by the percona toolkit. Percona’s method is considered more reliable than MySQL’s internal Seconds_Behind_Master metric.

This blog post better explains why pt-heartbeat is better than mysql’s Seconds_Behind_Master.

Dependencies

  • the Percona toolkit
  • a working pt-heartbeat.conf file.
  • paths to the pt-heartbeat binary and the pt-heartbeat.conf configuration file. If the plugin can’t find either of those, it will generate an error.
By Patrick O'Brien