Alternate FIX: "Access denies... LOCK TABLES"

  • The docs state:

    # Set USERNAME and PASSWORD of a user that has at least SELECT permission
    # to ALL databases.

    However this is not completely accurate. The simplest fix is to just give your backup user global lock_tables:

      update user set Lock_tables_priv='Y' where Host='foo' and User='backup_user'

    You will need to do this on each host from whom backups are taken.