MySQLdump backup script no longer works, getting "mysqldump: unknown variable 'local-infile=0'"

user_6941075 0
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I've recently upgrade a server to Debian 9 and MySQL to the latest version. I have a simple backup script that I run before performing any work on a production site but this time, when running my script, I encounter the following:

mysqldump: unknown variable 'local-infile=0'

Here is my script. What's going on?

#!/bin/bash
# [skipping commentary]

SITE=prod

# Set the directory that the Drupal root is IN, no trailing slashes
DROOT=[website_root]

# Set the directory for storing backups, no trailing slashes
BUD=/$DROOT/notes/backups

# Don't edit; End of defining variables
echo Doing a full back up...
echo Prepare to enter MySQL password...
# tar -czf $BUD/$SITE-files-$(date +'%Y%m%d%H%M%S').tgz  $DROOT/docroot
mysqldump -u mysql_user -p drupal > $BUD/$SITE-drupal-$(date +'%Y%m%d%H%M%S').sql
mysqldump -u mysql_user -p civicrm > $BUD/$SITE-civicrm-$(date +'%Y%m%d%H%M%S').sql
ls -lh $BUD
pwd
echo Finished with backups...

MySQL version 10.1.37-MariaDB-0+deb9u1 Debian 9.6

Edit: When I ssh and run mysqldump with correct permissions I get the same issue. Weirdest thing, cron that runs similar process is backing up my databases as ordered.

debian mysql bash
2 Answers

The best way to solve this is simply to rename the variable to: loose-local-infile=1

This will allow mysqldump to merely throw a warning, rather than a fatal error.

The suggestion to comment out the variable is not an option if you want LOAD DATA INFILE functionality out of the box, and MySQL 8+ for security reasons requires you to set this variable for both server (mysqld) and client. It is the [client] variable grouping in your config that chokes mysqldump if you don't add the "loose-" prefix to local-infile.

user_6401130

Seems like the new version you install is compiled without support of local-infile parameter. And because package management system (usually) keep your current configuration file you can try to find this parameter in my.ini file and comment it.

This parameter manage LOAD DATA LOCAL functionality. But seems like this have some potential security issues (more here)

user_29085990
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