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Can't create temporary files on /var/tmp.

mysqldump: Error: 'Can't create/write to file '/var/tmp/mysql.k6NKGk/#sql_5dc_2.MAI' (Errcode: 2)' when trying to dump tablespaces

On my OS.

 id mysql
uid=60(mysql) gid=105(mysql) groups=105(mysql)

ls -l /var/
drwxrwxrwt  2 root root  72 oct 24 16:43 tmp

What can I do?

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2 Answers 2

up vote 1 down vote accepted

Perhaps you can change the owner with

chown -R mysql:mysql /var/tmp

Check to see if there is a [mysqldump] header in /etc/my.cnf. It may look like this:


or perhaps under the [mysqld] header


Try commenting it out and trying mysqldump again.

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the ownership is not a good practice, but commenting out the tmp and chanchind de tmpdir did work for me. – maniat1k Oct 26 '12 at 12:19

The folder /var/tmp/mysql.k6NKGk/ may have been removed by systemd-tmpfiles (or tmpwatch) if there were no activity since a while.

A service restart is a way to work-around the issue.

Please refer to for details or other possible sources like SELinux.

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