The PHP OPcache module is not properly configured

[mitexleo]

Steps to reproduce

1. Upgrade Nextcloud Manually to the latest version
2. Check Overview Page

Expected behavior

Everything should work out of the box.

Actual behavior

Other information

Host OS Ubuntu 24 LTS

Output of sudo docker info

Client: Docker Engine - Community
Version: 27.3.1
Context: default
Debug Mode: false
Plugins:
buildx: Docker Buildx (Docker Inc.)
Version: v0.17.1
Path: /usr/libexec/docker/cli-plugins/docker-buildx
compose: Docker Compose (Docker Inc.)
Version: v2.29.7
Path: /usr/libexec/docker/cli-plugins/docker-compose

Server:
Containers: 22
Running: 21
Paused: 0
Stopped: 1
Images: 22
Server Version: 27.3.1
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Using metacopy: false
Native Overlay Diff: true
userxattr: false
Logging Driver: json-file
Cgroup Driver: systemd
Cgroup Version: 2
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog
Swarm: inactive
Runtimes: io.containerd.runc.v2 runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 7f7fdf5fed64eb6a7caf99b3e12efcf9d60e311c
runc version: v1.1.14-0-g2c9f560
init version: de40ad0
Security Options:
apparmor
seccomp
Profile: builtin
cgroupns
Kernel Version: 6.8.0-48-generic
Operating System: Ubuntu 24.04.1 LTS
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 7.57GiB
Name: mastoleo
ID: 667551f2-25b0-4656-8585-f9aeba82558f
Docker Root Dir: /var/lib/docker
Debug Mode: false
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false

WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled

Docker run command or docker-compose file that you used

Other valuable info

[szaimen]

Cc @MichaIng

[MichaIng]

@szaimen there is no OPcache usage monitor built into the container image, is it? Would be actually a great idea for an app, visualising opcache_get_status output, or having this in Monitoring app.

Else @mitexleo are you open to access container console and put a script with the output of above function into your container, or https://github.com/amnuts/opcache-gui alternatively, to check which scripts use that much OPcache?

[szaimen]

there is no OPcache usage monitor built into the container image, is it?

There isnt unfortunately.

Would be actually a great idea for an app, visualising opcache_get_status output, or having this in Monitoring app.

I agree. This could be a feature request for https://github.com/nextcloud/serverinfo. WDYT? :)

[szaimen]

Would be actually a great idea for an app, visualising opcache_get_status output, or having this in Monitoring app.

I agree. This could be a feature request for https://github.com/nextcloud/serverinfo. WDYT? :)

@MichaIng I had a fast look and it looks like this is actually already implemented and visible when you open https://your-nc-domain.com/ocs/v2.php/apps/serverinfo/api/v1/info?format=json

[szaimen]

On my test server I get this output:

          "opcache_revalidate_freq": 60,
          "opcache": {
            "opcache_enabled": true,
            "cache_full": false,
            "restart_pending": false,
            "restart_in_progress": false,
            "memory_usage": {
              "used_memory": 138093632,
              "free_memory": 130341824,
              "wasted_memory": 0,
              "current_wasted_percentage": 0
            },
            "interned_strings_usage": {
              "buffer_size": 67108864,
              "used_memory": 23571008,
              "free_memory": 43537856,
              "number_of_strings": 105021
            },
            "opcache_statistics": {
              "num_cached_scripts": 2660,
              "num_cached_keys": 5083,
              "max_cached_keys": 16229,
              "hits": 16540251,
              "start_time": 1731125044,
              "last_restart_time": 0,
              "oom_restarts": 0,
              "hash_restarts": 0,
              "manual_restarts": 0,
              "misses": 2711,
              "blacklist_misses": 0,
              "blacklist_miss_ratio": 0,
              "opcache_hit_rate": 99.9836123663949
            },
            "jit": {
              "enabled": true,
              "on": true,
              "kind": 5,
              "opt_level": 5,
              "opt_flags": 6,
              "buffer_size": 8388592,
              "buffer_free": 7332352
            }
          },

[MichaIng]

Ah nice. I just checked, sadly there is no way yet to show a list of cached keys/scripts, as function argument false is hardcoded: https://github.com/nextcloud/serverinfo/blob/master/lib/PhpStatistics.php#L56
I do not expect the Nextcloud checks to be wrong, hence it would be interesting to see which scripts/apps make most use of the cache. For that, one would need to call opcache_get_status(true) or opcache_get_status(). Maybe I am able to implement a new argument, based on how it is done for skipping system/app update infos: https://github.com/nextcloud/serverinfo/blob/master/lib/Controller/ApiController.php#L101
It would however make the JSON veeery long, with several thousand script paths 😄.

[szaimen]

One could temporarily hack the phpstatistics class on their server...

[szaimen]

@mitexleo would you mind opening https://your-nc-domain.com/ocs/v2.php/apps/serverinfo/api/v1/info?format=json as admin in your browser and posting the requested stats about opcache here?

[mitexleo]

@mitexleo would you mind opening https://your-nc-domain.com/ocs/v2.php/apps/serverinfo/api/v1/info?format=json as admin in your browser and posting the requested stats about opcache here?

This is what I get:

"opcache_revalidate_freq": 60, "opcache": { "opcache_enabled": true, "cache_full": false, "restart_pending": false, "restart_in_progress": false, "memory_usage": { "used_memory": 222317712, "free_memory": 7507832, "wasted_memory": 38609912, "current_wasted_percentage": 14.3833130598068 }, "interned_strings_usage": { "buffer_size": 67108864, "used_memory": 28571384, "free_memory": 38537480, "number_of_strings": 178384 }, "opcache_statistics": { "num_cached_scripts": 4625, "num_cached_keys": 8902, "max_cached_keys": 16229, "hits": 38995048, "start_time": 1731039835, "last_restart_time": 0, "oom_restarts": 0, "hash_restarts": 0, "manual_restarts": 0, "misses": 7265, "blacklist_misses": 0, "blacklist_miss_ratio": 0, "opcache_hit_rate": 99.9813728996021 },

[szaimen]

@MichaIng does the above help?

[MichaIng]

As said, the stats/conclusion is correct. Interesting would be the actual scripts which use up that much space: #5559 (comment)

So for now it'd require an additional script within webroot with opcache_get_status(true), or https://github.com/amnuts/opcache-gui.

[szaimen]

Hi @mitexleo can you please run sudo docker exec nextcloud-aio-nextcloud sed -i 's|opcache_get_status(false)|opcache_get_status(true)|' apps/serverinfo/lib/PhpStatistics.php and then wait 60s and then open the link again and post the new output here? Thanks a lot! :)

[mitexleo]

Hi @mitexleo can you please run sudo docker exec nextcloud-aio-nextcloud sed -i 's|opcache_get_status(false)|opcache_get_status(true)|' apps/serverinfo/lib/PhpStatistics.php and then wait 60s and then open the link again and post the new output here? Thanks a lot! :)

Got too long logs:

{"ocs":{"meta":{"status":"ok","statuscode":200,"message":"OK"},"data":{"nextcloud":{"system":{"version":"30.0.2.2","theme":"none","enable_avatars":"yes","enable_previews":"yes","memcache.local":"\\OC\\Memcache\\APCu","memcache.distributed":"\\OC\\Memcache\\Redis","filelocking.enabled":"yes","memcache.locking":"\\OC\\Memcache\\Redis","debug":"no","freespace":null,"cpuload":[5.1591796875,15.9541015625,13.97412109375],"mem_total":7937024,"mem_free":1690624,"swap_total":4193280,"swap_free":23552},"storage":{"num_users":4,"num_files":134270,"num_storages":9,"num_storages_local":1,"num_storages_home":2,"num_storages_other":6},"shares":{"num_shares":416,"num_shares_user":1,"num_shares_groups":0,"num_shares_link":17,"num_shares_mail":2,"num_shares_room":175,"num_shares_link_no_password":17,"num_fed_shares_sent":0,"num_fed_shares_received":0,"permissions_10_19":175,"permissions_3_17":17,"permissions_11_19":219,"permissions_4_20":2,"permissions_0_17":1,"permissions_11_0":2}},"server":{"webserver":"Apache/2.4.62 (Unix)","php":{"version":"8.2.25","memory_limit":1073741824,"max_execution_time":3600,"upload_max_filesize":10737418240,"opcache_revalidate_freq":60,"opcache":{"opcache_enabled":true,"cache_full":false,"restart_pending":false,"restart_in_progress":false,"memory_usage":{"used_memory":224051208,"free_memory":4153320,"wasted_memory":40230928,"current_wasted_percentage":14.987188577652},"interned_strings_usage":{"buffer_size":67108864,"used_memory":28620552,"free_memory":38488312,"number_of_strings":179018},"opcache_statistics":{"num_cached_scripts":4672,"num_cached_keys":8994,"max_cached_keys":16229,"hits":52178560,"start_time":1731039835,"last_restart_time":0,"oom_restarts":0,"hash_restarts":0,"manual_restarts":0,"misses":7398,"blacklist_misses":0,"blacklist_miss_ratio":0,"opcache_hit_rate":99.9858237727475},"scripts":{"/var/www/html/apps/files_versions/lib/Listener/VersionAuthorListener.php":
full_path":"/var/www/html/apps/files_versions/lib/Listener/VersionAuthorListener.php","hits":238,"memory_consumption":5088,"last_used":"Wed Nov 13 18:26:59 2024","last_used_timestamp":1731522419,"timestamp":1731040359},"/var/www/html/apps/dav/lib/CalDAV/Activity/Filter/Calendar.php":{"full_path":"/var/www/html/apps/dav/lib/CalDAV/Activity/Filter/Calendar.php","hits":30,"memory_consumption":6264,"last_used":"Thu Nov 14 00:31:20 2024","last_used_timestamp":1731544280,"timestamp":1731040360},"/var/www/html/apps/text/lib/Db/Session.php":{"full_path":"/var/www/html/apps/text/lib/Db/Session.php","hits":5,"memory_consumption":5800,"last_used":"Sun Nov 10 17:38:45 2024","last_used_timestamp":1731260325,"timestamp":1731040361},"/var/www/html/custom_apps/richdocuments/lib/Controller/DirectViewController.php":{"full_path":"/var/www/html/custom_apps/richdocuments/lib/Controller/DirectViewController.php","hits":9488,"memory_consumption":18888,"last_used":"Thu Nov 14 00:36:23 2024","last_used_timestamp":1731544583,"timestamp":1729815382},"/var/www/html/custom_apps/polls/lib/Controller/BaseController.php":{"full_path":"/var/www/html/custom_apps/polls/lib/Controller/BaseController.php","hits":1364,"memory_consumption":8576,"last_used":"Thu Nov 14 00:33:59 2024","last_used_timestamp":1731544439,"timestamp":1727378807},"/var/www/html/custom_apps/metadata/appinfo/routes.php":{"full_path":"/var/www/html/custom_apps/metadata/appinfo/routes.php","hits":1345,"memory_consumption":1088,"last_used":"Thu Nov 14 00:33:59 2024","last_used_timestamp":1731544439,"timestamp":1728146388},"/var/www/html/3rdparty/aws/aws-sdk-php/src/Result.php":{"full_path":"/var/www/html/3rdparty/aws/aws-sdk-php/src/Result.php","hits":31135,"memory_consumption":5320,"last_used":"Thu Nov 14 00:36:49 2024","last_used_timestamp":1731544609,"timestamp":1731040358},"/var/www/html/lib/public/Search/Provider.php":{"full_path":"/var/www/html/lib/public/Search/Provider.php","hits":27,"memory_consumption":5616,"last_used":"Thu Nov 14 00:31:50 2024","last_used_timestamp":1731544310,"timestamp":1731040362},"/var/www/html/custom_apps/collectives/vendor/teamtnt/tntsearch/helper/helpers.php":{"full_path":"/var/www/html/custom_apps/collectives/vendor/teamtnt/tntsearch/helper/helpers.php","hits":31635,"memory_consumption":3656,"last_used":"Thu Nov 14 00:36:49 2024","last_used_timestamp":1731544609,"timestamp":1730992646},"/var/www/html/lib/public/Preview/IProviderV2.php":{"full_path":"/var/www/html/lib/public/Preview/IProviderV2.php","hits":31423,"memory_consumption":3520,"last_used":"Thu Nov 14 00:36:49 2024","last_used_timestamp":1731544609,"timestamp":1731040362},"/var/www/html/apps/user_status/lib/Connector/UserStatus.php":{"full_path":"/var/www/html/apps/user_status/lib/Connector/UserStatus.php","hits":170,"memory_consumption":7376,"last_used":"Thu Nov 14 00:31:52 2024","last_used_timestamp":1731544312,"timestamp":1731040361},"/var/www/html/apps/webhook_listeners/lib/Db/WebhookListenerMapper.php":{"full_path":"/var/www/html/apps/webhook_listeners/lib/Db/WebhookListenerMapper.php","hits":31134,"memory_consumption":26912,"last_used":"Thu Nov 14 00:36:49 2024","last_used_timestamp":1731544609,"timestamp":1731040359},"/var/www/html/lib/private/App/AppStore/Version/VersionParser.php":{"full_path":"/var/www/html/lib/private/App/AppStore/Version/VersionParser.php","hits":15,"memory_consumption":5944,"last_used":"Thu Nov 14 00:31:54 2024","last_used_timestamp":1731544314,"timestamp":1731040362},"/var/www/html/custom_apps/collectives/lib/Listeners/CollectivesReferenceListener.php":{"full_path":"/var/www/html/custom_apps/collectives/lib/Listeners/CollectivesReferenceListener.php","hits":39,"memory_consumption":2656,"last_used":"Thu Nov 14 00:31:43 2024","last_used_timestamp":1731544303,"timestamp":1730992646},"/var/www/html/apps/circles/lib/Tools/Traits/TNCWellKnown.php":{"full_path":"/var/www/html/apps/circles/lib/Tools/Traits/TNCWellKnown.php","hits":31135,"memory_consumption":8960,"last_used":"Thu Nov 14 00:36:49 2024","last_used_timestamp":1731544609,"timestamp":1731040361},"/var/www/html/custom_apps/tables/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/HTML/ID.php":{"full_path":"/var/www/html/custom_apps/tables/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/HTML/ID.php","hits":759,"memory_consumption":7072,"last_used":"Thu Nov 14 00:31:50 2024","last_used_timestamp":1731544310,"timestamp":1728930978},"/var/www/html/apps/files/lib/Activity/Helper.php":{"full_path":"/var/www/html/apps/files/lib/Activity/Helper.php","hits":30,"memory_consumption":7296,"last_used":"Thu Nov 14 00:31:20 
2024","last_used_timestamp":1731544280,"timestamp":1731040360},"/var/www/html/custom_apps/user_migration/appinfo/routes.php":{"full_path":"/var/www/html/custom_apps/user_migration/appinfo/routes.php","hits":1346,"memory_consumption":2224,"last_used":"Thu Nov 14 00:33:59 2024","last_used_timestamp":1731544439,"timestamp":1728147200},"/var/www/html/apps/files_sharing/composer/composer/autoload_static.php":{"full_path":"/var/www/html/apps/files_sharing/composer/composer/autoload_static.php","hits":31422,"memory_consumption":7552,"last_used":"Thu Nov 14 00:36:49 2024","last_used_timestamp":1731544609,"timestamp":1731040359},"/var/www/html/apps/dav/lib/CalDAV/Activity/Setting/Calendar.php":{"full_path":"/var/www/html/apps/dav/lib/CalDAV/Activity/Setting/Calendar.php","hits":280,"memory_consumption":4872,"last_used":"Thu Nov 14 00:31:20 2024","last_used_timestamp":1731544280,"timestamp":1731040360},"/var/www/html/custom_apps/collectives/lib/Db/CollectiveUserSettingsMapper.php":{"full_path":"/var/www/html/custom_apps/collectives/lib/Db/CollectiveUserSettingsMapper.php","hits":31204,"memory_consumption":9096,"last_used":"Thu Nov 14 00:36:49 2024","last_used_timestamp":1731544609,"timestamp":1730992646},"/var/www/html/custom_apps/deck/lib/Db/RelationalEntity.php":{"full_path":"/var/www/html/custom_apps/deck/lib/Db/RelationalEntity.php","hits":5,"memory_consumption":13000,"last_used":"Thu Nov 14 00:36:14 2024","last_used_timestamp":1731544574,"timestamp":1731544428},"/var/www/html/custom_apps/news/lib/Fetcher/FaviconDataAccess.php":{"full_path":"/var/www/html/custom_apps/news/lib/Fetcher/FaviconDataAccess.php","hits":761,"memory_consumption":5224,"last_used":"Thu Nov 14 00:31:50 2024","last_used_timestamp":1731544310,"timestamp":1729002702},"/var/www/html/apps/files_external/lib/Service/GlobalStoragesService.php":{"full_path":"/var/www/html/apps/files_external/lib/Service/GlobalStoragesService.php","hits":31134,"memory_consumption":12792,"last_used":"Thu Nov 14 00:36:49 2024","last_used_timestamp":1731544609,"timestamp":1731040361},"/var/www/html/custom_apps/collectives/lib/Listeners/BeforeTemplateRenderedListener.php":{"full_path":"/var/www/html/custom_apps/collectives/lib/Listeners/BeforeTemplateRenderedListener.php","hits":187,"memory_consumption":6528,"last_used":"Thu Nov 14 00:31:49 2024","last_used_timestamp":1731544309,"timestamp":1730992646},"/var/www/html/custom_apps/tasks/lib/Controller/PageController.php":{"full_path":"/var/www/html/custom_apps/tasks/lib/Controller/PageController.php","hits":1363,"memory_consumption":4160,"last_used":"Thu Nov 14 00:33:59 2024","last_used_timestamp":1731544439,"timestamp":1726745963},"/var/www/html/lib/private/KnownUser/KnownUserMapper.php":{"full_path":"/var/www/html/lib/private/KnownUser/KnownUserMapper.php","hits":31130,"memory_consumption":8088,"last_used":"Thu Nov 14 00:36:49 2024","last_used_timestamp":1731544609,"timestamp":1731040362},"/var/www/html/lib/private/Preview/Movie.php":{"full_path":"/var/www/html/lib/private/Preview/Movie.php","hits":1,"memory_consumption":13640,"last_used":"Mon Nov 11 14:35:25 2024","last_used_timestamp":1731335725,"timestamp":1731040362},"/var/www/html/apps/dav/lib/CalDAV/IRestorable.php":{"full_path":"/var/www/html/apps/dav/lib/CalDAV/IRestorable.php","hits":118,"memory_consumption":1848,"last_used":"Thu Nov 14 00:31:29 2024","last_used_timestamp":1731544289,"timestamp":1731040360},"/var/www/html/config/proxy.config.php":{"full_path":"/var/www/html/config/proxy.config.php","hits":31639,"memory_consumption":2072,"last_used":"Thu Nov 14 00:36:49 
2024","last_used_timestamp":1731544609,"timestamp":1726745853},"/var/www/html/apps/files_external/lib/Service/UserStoragesService.php":{"full_path":"/var/www/html/apps/files_external/lib/Service/UserStoragesService.php","hits":31132,"memory_consumption":11416,"last_used":"Thu Nov 14 00:36:49 2024","last_used_timestamp":1731544609,"timestamp":1731040361},"/var/www/html/custom_apps/recognize/lib/Settings/AdminSettings.php":{"full_path":"/var/www/html/custom_apps/recognize/lib/Settings/AdminSettings.php","hits":12,"memory_consumption":4840,"last_used":"Tue Nov 12 12:29:14 2024","last_used_timestamp":1731414554,"timestamp":1728930617},"/var/www/html/custom_apps/groupfolders/lib/Controller/DelegationController.php":{"full_path":"/var/www/html/custom_apps/groupfolders/lib/Controller/DelegationController.php","hits":1350,"memory_consumption":9744,"last_used":"Thu Nov 14 00:33:59 2024","last_used_timestamp":1731544439,"timestamp":1728930601},"/var/www/html/custom_apps/news/lib/Listeners/AddMissingIndicesListener.php":{"full_path":"/var/www/html/custom_apps/news/lib/Listeners/AddMissingIndicesListener.php","hits":7,"memory_consumption":2392,"last_used":"Tue Nov 12 12:22:41 2024","last_used_timestamp":1731414161,"timestamp":1729002702},"/var/www/html/3rdparty/sabre/http/lib/RequestInterface.php":{"full_path":"/var/www/html/3rdparty/sabre/http/lib/RequestInterface.php","hits":2290,"memory_consumption":9328,"last_used":"Thu Nov 14 00:34:18 2024","last_used_timestamp":1731544458,"timestamp":1731040357},"/var/www/html/custom_apps/tables/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/Clone.php":{"full_path":"/var/www/html/custom_apps/tables/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/Clone.php","hits":761,"memory_consumption":3928,"last_used":"Thu Nov 14 00:31:50 2024","last_used_timestamp":1731544310,"timestamp":1728930978},"/var/www/html/3rdparty/symfony/css-selector/Parser/Shortcut/HashParser.php":{"full_path":"/var/www/html/3rdparty/symfony/css-selector/Parser/Shortcut/HashParser.php","hits":2,"memory_consumption":3480,"last_used":"Mon Nov 11 15:15:12 2024","last_used_timestamp":1731338112,"timestamp":1731040357},"/var/www/html/apps/files_external/lib/Config/IConfigHandler.php":{"full_path":"/var/www/html/apps/files_external/lib/Config/IConfigHandler.php","hits":31135,"memory_consumption":1968,"last_used":"Thu Nov 14 00:36:49 2024","last_used_timestamp":1731544609,"timestamp":1731040361},"/var/www/html/lib/public/Files/SimpleFS/InMemoryFile.php":{"full_path":"/var/www/html/lib/public/Files/SimpleFS/InMemoryFile.php","hits":73,"memory_consumption":9352,"last_used":"Thu Nov 14 00:31:33 2024","last_used_timestamp":1731544293,"timestamp":1731040362},"/var/www/html/lib/private/Preview/Image.php":{"full_path":"/var/www/html/lib/private/Preview/Image.php","hits":392,"memory_consumption":3832,"last_used":"Thu Nov 14 00:31:25 2024","last_used_timestamp":1731544285,"timestamp":1731040362},"/var/www/html/lib/public/Translation/LanguageTuple.php":{"full_path":"/var/www/html/lib/public/Translation/LanguageTuple.php","hits":38,"memory_consumption":4616,"last_used":"Thu Nov 14 00:31:43 2024","last_used_timestamp":1731544303,"timestamp":1731040362},"/var/www/html/3rdparty/sabre/dav/lib/DAVACL/IPrincipal.php":{"full_path":"/var/www/html/3rdparty/sabre/dav/lib/DAVACL/IPrincipal.php","hits":151,"memory_consumption":5064,"last_used":"Thu Nov 14 00:26:42 2024","last_used_timestamp":1731544002,"timestamp":1731040357},"/var/www/html/lib/private/App/AppStore/Fetcher/Fetcher.php":

Is there any other way to share the logs? Maybe I could give you access to the server?