The Basics
- Nextcloud Server version:
- Nextcloud Hub 10 (31.0.5)
- Operating system and version:
- Linux Mint 22.1 (~ Ubuntu 24.04)
- Web server and version:
- nginx 1.24.0
- Reverse proxy and version:
- none
- PHP version:
- 8.3.6
- Is this the first time you’ve seen this error? (Yes / No):
- Yes
- When did this problem seem to first start?
- May 28, 2025, 11:23:28 PM = ~ 5 hours after upgrading my server (was on an end-of-live version before, can’t remember which - the upgrader needed ~3 steps to reach the up-to-date version)
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
- archive originally, but have upgraded many times using the web-based upgrader linked from admin panel
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
- no
Summary of the issue you are facing:
Log entries with level “fatal” sound scary, and I don’t understand why this one should be fatal. The server my Nextcloud instance is running on now has 16GB of RAM, so 300MB should not be a problem. I did not notice any user-facing feature not working - looking at the log entry in between the two fatal ones it looks like it was caused by a cron job running and not a client of mine.
Nextcloud Log entries
{"reqId":"py75aKcjdOY48CWzk8V6","level":4,"time":"2025-05-28T21:26:49+00:00","remoteAddr":"","user":"--","app":"core","method":"","url":"--","message":"Request used more than 300 MB of RAM: 720 MB","userAgent":"--","version":"31.0.5.1","data":{"app":"core"},"id":"683806141d594"}
{"reqId":"py75aKcjdOY48CWzk8V6","level":2,"time":"2025-05-28T21:26:49+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"Cron job used more than 300 MB of ram after executing job OCA\\Files\\BackgroundJob\\ScanFiles (id: 10, arguments: null): 720 MB (before: 32.9 MB)","userAgent":"--","version":"31.0.5.1","data":{"app":"cron"},"id":"683806141d59c"}
{"reqId":"4g9KlTGNJP0fKjejxVSG","level":4,"time":"2025-05-28T21:23:28+00:00","remoteAddr":"","user":"--","app":"core","method":"","url":"--","message":"Request used more than 300 MB of RAM: 728.4 MB","userAgent":"--","version":"31.0.5.1","data":{"app":"core"},"id":"683806141d5a1"}
Can’t find any web server log entries during that time period, probably because it was caused by the cron job that doesn’t go through the webserver.
Configuration
Nextcloud
{
"system": {
"debug": false,
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"192.168.16.5",
"***REMOVED SENSITIVE VALUES MANUALLY***"
],
"maintenance_window_start": 1,
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"overwrite.cli.url": "https:\/\/my-domain\/nextcloud",
"overwriteprotocol": "https",
"dbtype": "mysql",
"version": "31.0.5.1",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_smtpmode": "smtp",
"mail_smtpauthtype": "LOGIN",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"maintenance": false,
"theme": "",
"default_phone_region": "AT",
"loglevel": 2,
"updater.release.channel": "stable",
"memcache.local": "\\OC\\Memcache\\APCu",
"memcache.locking": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": 0,
"timeout": 0
},
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_sendmailmode": "smtp",
"mail_smtpauth": 1,
"mail_smtpport": "465",
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"mail_smtpdebug": true,
"twofactor_enforced": "false",
"twofactor_enforced_groups": [],
"twofactor_enforced_excluded_groups": [],
"mail_smtpsecure": "ssl",
"app_install_overwrite": [
"spreed"
],
"mysql.utf8mb4": true,
"filelocking.enabled": true
}
}
Apps
Enabled:
- activity: 4.0.0
- admin_audit: 1.21.0
- app_api: 5.0.2
- calendar: 5.3.0
- circles: 31.0.0
- cloud_federation_api: 1.14.0
- comments: 1.21.0
- contacts: 7.1.1
- contactsinteraction: 1.12.0
- dashboard: 7.11.0
- dav: 1.33.0
- deck: 1.15.1
- federatedfilesharing: 1.21.0
- files: 2.3.1
- files_downloadlimit: 4.0.0
- files_pdfviewer: 4.0.0
- files_reminders: 1.4.0
- files_sharing: 1.23.1
- files_trashbin: 1.21.0
- files_versions: 1.24.0
- firstrunwizard: 4.0.0
- logreader: 4.0.0
- lookup_server_connector: 1.19.0
- mail: 5.1.1
- nextcloud_announcements: 3.0.0
- notes: 4.12.1
- notifications: 4.0.0
- oauth2: 1.19.1
- photos: 4.0.0-dev.1
- profile: 1.0.0
- provisioning_api: 1.21.0
- recommendations: 4.0.0
- related_resources: 2.0.0
- serverinfo: 3.0.0
- settings: 1.14.0
- sharebymail: 1.21.0
- systemtags: 1.21.1
- tasks: 0.16.1
- text: 5.0.0
- theming: 2.6.1
- twofactor_backupcodes: 1.20.0
- updatenotification: 1.21.0
- user_status: 1.11.0
- viewer: 4.0.0
- weather_status: 1.11.0
- webhook_listeners: 1.2.0
- workflowengine: 2.13.0
Disabled:
- bruteforcesettings: 4.0.0 (installed 1.0.3)
- encryption: 2.19.0
- federation: 1.21.0 (installed 1.3.0)
- files_external: 1.23.0
- files_rightclick: 0.15.1 (installed 1.6.0)
- password_policy: 3.0.0 (installed 1.13.0)
- privacy: 3.0.0 (installed 1.0.0)
- support: 3.0.0 (installed 1.6.0)
- survey_client: 3.0.0 (installed 1.1.0)
- suspicious_login: 9.0.1
- twofactor_nextcloud_notification: 5.0.0
- twofactor_totp: 13.0.0-dev.0
- user_ldap: 1.22.0