Increase /tmp Partition Size Print

Resize /tmp partition size in cPanel and secure it

This is only applicable to our dedicated server customers.

Please follow the steps in order to resize the tmp partition for cPanel. All the following commands are to be done via SSH.

1. Stop cPanel, apache (litespeed), mysql services:

service cpanel stop

service httpd stop

service lsws stop

service mysqld stop

2. Identify and kill all tailwatchd process

pstree -p | grep tailwatchd

The above command will list all tailwatchd process. Kill them all. You can use the following command for it.

kill -9 Process_ID

3. Identify all files and processes that are using /tmp now using the following command and kill them all. The following commands lists the processes and associated users. Use the same kill -9 Process_ID to kill the processes.

fuser -cu /tmp

4. Umount /tmp and /var/tmp:

umount -l /tmp

umount -l /var/tmp

5. Move /usr/tmpDSK file to another location (just in case you need to mount it somewhere else to preserve data):

mv /usr/tmpDSK /usr/tmpDSK_back

mv /tmp /root/tmp.backup

6. Remove tmpDSK

rm -rf /usr/tmpDSK

7. Open the file - /scripts/securetmp - which is where you set the tmpdsksize to the new desired size. Search for $tmpdsksize in this file, and modify the value set to it to the new one of your choice and save the file. 

vi /scripts/securetmp
$tmpdsksize = 2048000

Modify the below line to the size require, for example 8GB would use - ( 2048 * 2048 * 2 )

my $FOUR_GIG_k = ( 1024 * 1024 * 2 );

8. Run the following command to secure /tmp

/scripts/securetmp

9. Start cPanel, apache (litespeed), mysql services:

service cpanel start

service httpd start

service lsws start

service mysqld start