MySQL Enterprise Backup (MEB): Backup Fails; Lost Connection to MySQL Server During Query; Error 2006: MySQL Server Has Gone Away; This Backup Operation Cannot be Logged
(Doc ID 1381365.1)
Last updated on FEBRUARY 10, 2019
MySQL Enterprise Backup - Version 3.5 to 3.8 [Release 3.5 to 3.8]
Information in this document applies to any platform.
When attempting to backing up a large database, the following - or similar - errors occur.
The issue can be triggered by either of the following changes:
- The size of the database grows
- The value of wait_timeout has been lowered
- A change to the backup procedure so the backup is stored on a slower disk/medium or is sent through the network
- An external script kills the connection used by MySQL Enterprise Backup. This will not be discussed in more details here. Instead see <Note 2294363.1>.
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