Killed process php

Works constantly Oom killer and kills php-processes.
RAM 16 Gb
SWAP 16 Gb
CPUs 8
There are 2 cron-tasks for users www-data:
*/15 * * * * php -f /var/www/html/owncloud/cron.php
0 */4 * * * php /var/www/html/owncloud/occ user:sync -m disable “OCA\User_LDAP\User_Proxy”
This process /var/www/html/owncloud/cron.php is triggered Oom killer.
Help fix this error

oomlog.txt (2.7 KB)
cron.php.txt (5.9 KB)

###Server configuration
Operating system:
“user_ldap” 0.9.1
Operating system: Ubuntu Server 18.04 LTS
Web server:Apache/2.4.29
Database:mariaDB 10.1.34
PHP version:PHP 7.2
ownCloud version: ownCloud 10.0.10 (stable)
Updated from an older ownCloud or fresh install:
Special configuration (external storage - nas, external authentication- ldap, reverse proxy - no, server-side-encryption-no):

Hi domnich,

before you start investigating, I’d recommend to upgrade your ownCloud to the latest version, since you are still using 10.0. Especially, but not only, in 10.4 there were several improvements regarding background jobs (ie cron) memory consumption. (Search for ‘memory’)

If, after having upgraded, you still experience the OOM issue please provide a list of enabled apps and the owncloud.log around the timestamp when the OOM occured.


Do you need to follow the sequence of versions when updating, or can you go straight to version 10.6?

For any ownCloud version it is safe to upgrade to the latest minor version, so 10.0 -> 10.6 is fine for you.


Updated to 10.6.0 on your recommendation.
The update was successful with no errors.
Now the problem is in cron.php - not starting on the page (Last executed scheduler task: 15 hours ago. Looks like something is wrong.)
Should run every 15 minutes.
How can I fix this?

The cron syntax had changed, see

So replace your line with
*/15 * * * * /usr/bin/php -f /var/www/html/owncloud/occ system:cron

In general, when something is not working as expected have a look into owncloud.log. I’m pretty sure there is an error complaining about the command syntax.


You can also check the background jobs with the new occ background:queue:status commands

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