My Oracle Support Banner

What Are Heartbeats and What Causes Missed Heartbeats In MySQL Cluster? HeartbeatIntervalDbDb; HeartbeatIntervalDbApi; HeartbeatOrder; HeartbeatIntervalMgmdMgmd (Doc ID 2034770.1)

Last updated on SEPTEMBER 06, 2023

Applies to:

MySQL Cluster - Version 7.1 and later
Information in this document applies to any platform.


Give details of how heartbeats works in MySQL Cluster, how to configure them, and what can cause them to be missed.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
 The Purpose of Heartbeats and How They Work
 Configuration Options
 Considerations When Choosing The Heartbeat Interval
 What Causes Missed Heartbeats

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.