Installing Sys Schema From MySQL Enterprise Monitor (MEM) On Replication Master Breaks Replication: "Could not execute Write_rows event on table sys.sys_config; Duplicate entry 'statement_truncate_len' for key 'PRIMARY', Error_code: 1062;" (Doc ID 2109777.1)

Last updated on MARCH 08, 2017

Applies to:

MySQL Enterprise Monitor - Version 3.1 to 3.1 [Release 3.1]
MySQL Server - Version 5.6 to 5.7 [Release 5.6 to 5.7]
Information in this document applies to any platform.

Symptoms

After installing the sys schema using MySQL Enterprise Monitor (MEM) on a MySQL instance that is a replication master breaks replication to the replication slave, if the replication slave already has the sys schema installed. The error is similar to:

 

Changes

The issue arises after using MySQL Enterprise Monitor (MEM) to install the sys schema on a replication master where the replication slave already has the sys schema installed.

Cause

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