Hello chino259,The file growing happens when you run mysqlcheck -r yourDB, because of the mechanic how it fixes the table, it create a copy of existing table (including indexes iirc), rebuilds it, then removes the temporary table and then moves to the next table. This is problematic if you have space issues.Usually, system default partition layout contains /tmp as a temp partition, which mysql is using to make this copy of table, if you do not have (as in your case by the looks of it) /tmp, it should be using /, can you please run this in mysql, this will tell you where it is storing temporary copies:SHOW VARIABLES LIKE 'tmpdir';If I remember correctly then you can edit location where it stores these temporary files by adding this to /etc/my.cnf (iirc this is the option which controls it), again after making changes to /etc/my.cnf always restart mysql:tmpdir = /whatewer/you/wantYou might want to change this location to a partition which has enough space to do this exercise (for example, by default RHEL variants allocate almost all space to /home, for different distros it might be different). As a rule of thumb - you must have DB size x2 available space on the same partition to perform repair, if you don't have it - you must use different partition.You have another option, to move whole mysql database to a different partition and create symbolic link to it, e.g. (any partition with enough space can be used in place of /usr), after doing this mysql restart is required:mv /var/lib/mysql/YourDB /usr/mysql/YourDBln -s /var/lib/mysql/YourDB /usr/mysql/yourDBAs for /etc/my.cnf, you might want to use this (I use 5.1.73, but it should not matter), beware, bind-address will make your mysql localhost only, thus you won't be able to connect to DB with external application, e.g., MySQL workbench:bind-address=127.0.0.1datadir=/var/lib/mysqlsocket=/var/lib/mysql/mysql.sockuser=mysql# Disabling symbolic-links is recommended to prevent assorted security riskssymbolic-links=0log-error=/var/log/mysqld.logpid-file=/var/run/mysqld/mysqld.pid