EC
1698
MariaDBERRORCommonReplicationMEDIUM confidence

Generic error reported on the replication source

Production Risk

High — replication stopped; replica data may be stale.

What this means

A generic error occurred on the replication source. The error message typically includes the underlying cause. This code wraps source-side errors reported to the replica.

Why it happens
  1. 1Source executed a statement that failed.
  2. 2Networking issue interrupted the replication stream.
  3. 3Source binlog event is malformed.
How to reproduce
trigger — this will error
trigger — this will error
-- Observed in SHOW SLAVE STATUS\G as Last_Error.

expected output

ERROR 1698 (HY000): Error on master: code: 1062 message: Duplicate entry '1' for key 'PRIMARY'

Fix

Identify and resolve the underlying source error

Identify and resolve the underlying source error
SHOW SLAVE STATUS\G
-- Review Last_SQL_Error and Last_Error_Code fields.
-- Fix the data inconsistency on the source or use sql_slave_skip_counter if safe.

Why this works

The embedded error code and message indicate the exact failure on the source.

What not to do

✕

Sources
Official documentation ↗

MySQL 8.0 — 1698 ER_ERROR_ON_MASTER

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