Mysql Cluster Backup Failed with Backup log buffer full (Doc ID 1456700.1)

Last updated on APRIL 13, 2017

Applies to:

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

Symptoms

With NDB Cluster under significant write load when a backup runs, it returns with the following error;
Backup failed
* 3001: Could not start backup
* Backup log buffer full: Permanent error: Internal error

Changes

 This error is more likely to occur if BackupLogBufferSize is reduced below the default of 16M, or, under very significant write workloads.

Cause

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