Backup Fails With Concurrent Copying DDL: "WARNING: Trying to open a table, but could not open the tablespace file ..."
Last updated on AUGUST 10, 2017
Applies to:MySQL Enterprise Backup - Version 3.12 and later
Information in this document applies to any platform.
When trying to create a backup with MySQL Enterprise Backup (MEB) while an ALTER TABLE using ALGORITHM=COPY (implicitly or explicitly), OPTIMIZE TABLE, DROP TABLE, DROP SCHEMA, or DROP DATABASE the backup fails with warnings like the following in the backup log:
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