My Oracle Support Banner

Memory Usage Increases Constantly With slave_parallel_workers > 0; Parallel Slave (Doc ID 1631607.1)

Last updated on FEBRUARY 03, 2019

Applies to:

MySQL Server - Version 5.6 to 5.6 [Release 5.6]
Information in this document applies to any platform.


When using the parallel slave, the memory usage keeps increasing until the slave's SQL thread is restarted.

The issue exists irrespectively of whether relay_log_info_repository and master_info_repository are set to TABLE or FILE.


The variable slave_parallel_workers have been set to a value greater than 0 either in the MySQL configuration file or dynamically:



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

This document is being delivered to you via Oracle Support's Rapid Visibility (RaV) process and therefore has not been subject to an independent technical review.
My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.