Opcache.memory_consumption insane values needed by nextcloud

kesselb · June 11, 2022, 1:53pm

Hi, some additional reading regarding the Opcache warnings:

https://docs.nextcloud.com/server/latest/admin_manual/installation/server_tuning.html?highlight=opcache#enable-php-opcache

github.com/nextcloud/server

[Bug]: The OPcache interned strings buffer is nearly full

opened 07:15PM - 16 Feb 22 UTC

closed 12:24AM - 04 Mar 22 UTC

andyxheli

enhancement 2. developing pending documentation 23-feedback

### ⚠️ This issue respects the following points: ⚠️ - [X] This is a **bug**, no…t a question or a configuration/webserver/proxy issue. - [X] This issue is **not** already reported on Github _(I've searched it)_. - [X] Nextcloud Server **is** up to date. See [Maintenance and Release Schedule](https://github.com/nextcloud/server/wiki/Maintenance-and-Release-Schedule) for supported versions. - [X] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/). ### Bug description The OPcache interned strings buffer is nearly full. To assure that repeating strings can be effectively cached, it is recommended to apply opcache.interned_strings_buffer to your PHP configuration with a value higher than 8. ![image](https://user-images.githubusercontent.com/59488153/154338881-a6ac86fd-91f5-4361-b7e0-6bf9359e6ea2.png) ### Steps to reproduce 1. Server Overview ### Expected behavior NA ### Installation method Manual installation ### Operating system Debian/Ubuntu ### PHP engine version PHP 8.0 ### Web server Apache (supported) ### Database engine version MariaDB ### Is this bug present after an update or on a fresh install? Updated to a major version (ex. 22.2.3 to 23.0.1) ### Are you using the Nextcloud Server Encryption module? Encryption is Disabled ### What user-backends are you using? - [X] Default user-backend _(database)_ - [ ] LDAP/ Active Directory - [ ] SSO - SAML - [ ] Other ### Configuration report ```shell { "system": { "instanceid": "***REMOVED SENSITIVE VALUE***", "passwordsalt": "***REMOVED SENSITIVE VALUE***", "secret": "***REMOVED SENSITIVE VALUE***", "trusted_domains": [ "1.1.1.14", "cloud.next.com" ], "datadirectory": "***REMOVED SENSITIVE VALUE***", "dbtype": "mysql", "version": "23.0.2.1", "overwrite.cli.url": "https:\/\/cloud.next.com", "htaccess.RewriteBase": "\/", "dbname": "***REMOVED SENSITIVE VALUE***", "dbhost": "***REMOVED SENSITIVE VALUE***", "dbport": "", "dbtableprefix": "oc_", "mysql.utf8mb4": true, "dbuser": "***REMOVED SENSITIVE VALUE***", "dbpassword": "***REMOVED SENSITIVE VALUE***", "installed": true, "memcache.local": "\\OC\\Memcache\\APCu", "memcache.distributed": "\\OC\\Memcache\\Redis", "memcache.locking": "\\OC\\Memcache\\Redis", "redis": { "host": "***REMOVED SENSITIVE VALUE***", "port": 6379 }, "simpleSignUpLink.shown": false, "trashbin_retention_obligation": "auto,30", "versions_retention_obligation": "auto,1", "skeletondirectory": "", "default_phone_region": "US", "allow_local_remote_servers": true, "mail_smtpmode": "smtp", "mail_smtphost": "***REMOVED SENSITIVE VALUE***", "mail_sendmailmode": "smtp", "mail_smtpport": "587", "mail_smtpauthtype": "LOGIN", "mail_from_address": "***REMOVED SENSITIVE VALUE***", "mail_domain": "***REMOVED SENSITIVE VALUE***", "mail_smtpsecure": "tls", "mail_smtpauth": 1, "mail_smtpname": "***REMOVED SENSITIVE VALUE***", "mail_smtppassword": "***REMOVED SENSITIVE VALUE***", "twofactor_enforced": "true", "twofactor_enforced_groups": [], "twofactor_enforced_excluded_groups": [], "maintenance": false, "updater.release.channel": "stable", "theme": "", "loglevel": 2, "updater.secret": "***REMOVED SENSITIVE VALUE***" } } ``` ### List of activated Apps ```shell Enabled: - accessibility: 1.9.0 - activity: 2.15.0 - admin_audit: 1.13.0 - bruteforcesettings: 2.3.0 - cloud_federation_api: 1.6.0 - comments: 1.13.0 - contactsinteraction: 1.4.0 - dashboard: 7.3.0 - dav: 1.21.0 - federatedfilesharing: 1.13.0 - federation: 1.13.0 - files: 1.18.0 - files_external: 1.15.0 - files_pdfviewer: 2.4.0 - files_rightclick: 1.2.0 - files_sharing: 1.15.0 - files_trashbin: 1.13.0 - files_versions: 1.16.0 - files_videoplayer: 1.12.0 - firstrunwizard: 2.12.0 - groupfolders: 11.1.2 - logreader: 2.8.0 - lookup_server_connector: 1.11.0 - nextcloud_announcements: 1.12.0 - notifications: 2.11.1 - oauth2: 1.11.0 - officeonline: 1.1.2 - password_policy: 1.13.0 - photos: 1.5.0 - previewgenerator: 4.0.0 - privacy: 1.7.0 - provisioning_api: 1.13.0 - ransomware_protection: 1.12.0 - recommendations: 1.2.0 - sendent: 1.2.10 - serverinfo: 1.13.0 - settings: 1.5.0 - sharebymail: 1.13.0 - socialsharing_email: 2.4.0 - spreed: 13.0.3 - support: 1.6.0 - survey_client: 1.11.0 - suspicious_login: 4.1.0 - systemtags: 1.13.0 - text: 3.4.0 - theming: 1.14.0 - twofactor_admin: 3.2.0 - twofactor_backupcodes: 1.12.0 - twofactor_totp: 6.2.0 - updatenotification: 1.13.0 - user_status: 1.3.1 - viewer: 1.7.0 - weather_status: 1.3.0 - workflowengine: 2.5.0 Disabled: - circles: 22.1.1 - encryption - user_ldap ``` ### Nextcloud Signing status _No response_ ### Nextcloud Logs _No response_ ### Additional info .

The idea of the warning is to make you aware that the opcache configuration is not sufficient. That can happen when beside Nextcloud other php applications are installed and all applications are using the same php fpm process as the opcache limits are per process afaik.

GitHub - amnuts/opcache-gui: A clean, effective and responsive interface for Zend OPcache can help you to get a better overview about the opcache status.

cc @MichaIng