/var/tmp full of systemd-private- folders

[nubevps]

Hello,

Today I got this problem in my Plesk server:

ERROR: Zend_Db_Statement_Exception: SQLSTATE[HY000]: General error: 1021 Disk full (/var/tmp/#sql_b7e_0); waiting for someone to free some space... (Pdo.php:234)

and I fixed it following this KB:

https://kb.odin.com/en/124579

I checked content of /var/tmp and found many systemd-private- foders:

drwx------ 3 root root 4096 feb 16 20:02 systemd-private-000c389024c645cd9546d3348cd65524-httpd.service-IuZd1c
drwx------ 3 root root 4096 feb 16 19:04 systemd-private-000c389024c645cd9546d3348cd65524-mariadb.service-T74wlJ
drwx------ 3 root root 4096 feb 16 19:04 systemd-private-000c389024c645cd9546d3348cd65524-php-fpm.service-RxIqUn
drwx------ 3 root root 4096 mar 28 2015 systemd-private-0uLU8D
drwx------ 3 root root 4096 mar 27 2015 systemd-private-2ICdhW
drwx------ 3 root root 4096 ago 8 2015 systemd-private-2IfXld
drwx------ 3 root root 4096 jun 3 2015 systemd-private-2QlphP
drwx------ 3 root root 4096 mar 8 2015 systemd-private-5CwQSI
drwx------ 2 root root 4096 dic 15 09:09 systemd-private-5tTMIE
drwx------ 3 root root 4096 abr 1 2015 systemd-private-7rgRaB
drwx------ 3 root root 4096 abr 1 2015 systemd-private-9R1UMr
drwx------ 3 root root 4096 mar 8 2015 systemd-private-9xs9uP
drwx------ 3 root root 4096 jul 17 2015 systemd-private-9zxJdq
drwx------ 3 root root 4096 ago 8 2015 systemd-private-ahAUhp
drwx------ 3 root root 4096 jun 7 2015 systemd-private-btXX7c
drwx------ 3 root root 4096 mar 31 2015 systemd-private-byDGqw
drwx------ 3 root root 4096 jun 1 2015 systemd-private-cZP9rQ
drwx------ 3 root root 4096 jul 31 2015 systemd-private-d3uka3
drwx------ 3 root root 4096 feb 15 18:26 systemd-private-dbc44f86d7674c3483ff7cd206355e4d-httpd.service-rwZZHT
drwx------ 3 root root 4096 dic 19 00:29 systemd-private-dbc44f86d7674c3483ff7cd206355e4d-mariadb.service-QeBUjU
drwx------ 3 root root 4096 dic 19 00:29 systemd-private-dbc44f86d7674c3483ff7cd206355e4d-php-fpm.service-wfwk0p
drwx------ 3 root root 4096 mar 28 2015 systemd-private-ec1g0F
drwx------ 3 root root 4096 abr 1 2015 systemd-private-Hjnq2p
drwx------ 3 root root 4096 jul 17 2015 systemd-private-HsNQ3h
drwx------ 3 root root 4096 jul 1 2015 systemd-private-HTTgOo
drwx------ 3 root root 4096 mar 31 2015 systemd-private-j4QlRu
drwx------ 2 root root 4096 dic 15 09:08 systemd-private-Kv4suW
drwx------ 3 root root 4096 oct 23 19:41 systemd-private-l1qf1B
drwx------ 3 root root 4096 mar 28 2015 systemd-private-miNP6g
drwx------ 2 root root 4096 dic 15 09:21 systemd-private-MiT4NA
drwx------ 3 root root 4096 ago 8 2015 systemd-private-mKK8MA
drwx------ 3 root root 4096 ago 27 01:04 systemd-private-NS3D6R
drwx------ 3 root root 4096 mar 28 2015 systemd-private-OUrjCZ
drwx------ 3 root root 4096 jun 7 2015 systemd-private-pPFxdE
drwx------ 3 root root 4096 mar 28 2015 systemd-private-Q3UxRE
drwx------ 3 root root 4096 abr 1 2015 systemd-private-ROistX
drwx------ 3 root root 4096 jul 7 2015 systemd-private-taGAJi
drwx------ 3 root root 4096 oct 23 19:41 systemd-private-taKkRX
drwx------ 3 root root 4096 abr 1 2015 systemd-private-THhSpu
drwx------ 3 root root 4096 jun 9 2015 systemd-private-Vqpd1x
drwx------ 3 root root 4096 oct 28 23:42 systemd-private-VYurSu
drwx------ 3 root root 4096 oct 22 12:16 systemd-private-wLJ9GX
drwx------ 3 root root 4096 jun 8 2015 systemd-private-wNQxpA
drwx------ 3 root root 4096 abr 14 2015 systemd-private-WuLsli
drwx------ 3 root root 4096 may 27 2015 systemd-private-WyeEyc
drwx------ 3 root root 4096 mar 28 2015 systemd-private-xs5UKI
drwx------ 3 root root 4096 abr 1 2015 systemd-private-ZemJK3
drwx------ 3 root root 4096 ago 27 01:04 systemd-private-Zq3TiV

is this normal?, can I safely delete them?.

Regards.

 

[IgorG]

Deleting any temp file is always your own risk.

 

[nubevps]

Yes I know, I mean if content of systemd-private-* folders is important for the system.