Applicable to:
- Plesk for Linux
- Plesk for Windows
Symptoms
An operation fails in Plesk with a blank page or one of the following error messages in Plesk:
PLESK_INFO: PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 16384 bytes) in /path/to/plesk/file.php on line 228
PLESK_INFO: Out of memory (allocated 23855104) (tried to allocate 12975879 bytes) (Abstract.php:41)
Cause
Memory limit is exceeded by Plesk PHP back-end. This may happen if an object, over which the operation is performed, has a complex structure.
Resolution
-
Connect to the Plesk server via SSH.
-
Open the Plesk PHP configuration file php.ini in a text editor. In this example, we are using the vi editor:
# vi /usr/local/psa/admin/conf/php.ini
-
Increase the
memory_limit
value to 512M:CONFIG_TEXT: memory_limit = 512M
-
Save the changes and close the file.
-
Restart the Plesk management service:
# service sw-engine restart && service sw-cp-server restart
-
Redo the previously failed operation. If it fails with the same error, increase the
memory_limit
limit to a greater value and restart the services. -
To prevent the changes from being reverted during Plesk update, replace the following line in
/etc/cron.daily/50plesk-daily
using a text editor:-
on CentOS/RHEL-based distributions
CONFIG_TEXT: /usr/local/psa/bin/sw-engine-pleskrun /usr/local/psa/admin/plib/DailyMaintainance/script.php >/dev/null 2>&1
with
CONFIG_TEXT: /usr/local/psa/bin/sw-engine-pleskrun /usr/local/psa/admin/plib/DailyMaintainance/script.php >/dev/null 2>&1 && sed -i '/memory_limit/c\memory_limit = 512M' /usr/local/psa/admin/conf/php.ini
-
on Debian/Ubuntu-based distributions
CONFIG_TEXT: /opt/psa/bin/sw-engine-pleskrun /opt/psa/admin/plib/DailyMaintainance/script.php >/dev/null 2>&1
with
CONFIG_TEXT: /opt/psa/bin/sw-engine-pleskrun /opt/psa/admin/plib/DailyMaintainance/script.php >/dev/null 2>&1 && sed -i '/memory_limit/c\memory_limit = 512M' /usr/local/psa/admin/conf/php.ini
-
-
Connect to the Plesk server via RDP.
-
Open the Plesk PHP configuration file
%plesk_dir%admin\conf\php.ini
in a text editor. -
Increase the
memory_limit
limit to 512. -
Save the changes and close the file.
-
Restart the Plesk management service:
Start PowerShell and run the commands one by one:
PS import-module WebAdministration
net stop "Plesk PopPass Service"
net stop "Plesk Management Service"
net start "Plesk Management Service"
net start "Plesk PopPass Service"
Restart-WebAppPool PleskControlPanel -
Redo the previously failed operation. If it fails with the same error, increase the
memory_limit
limit to a greater value and restart the services.
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