[Bug]: 29.0.7 update failed: `OCP\Exceptions\AppConfigUnknownKeyException: unknown config key`

[SimonSchwendele]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

While performing the online update from 29.0.6 to 29.0.7 the error
OCP\Exceptions\AppConfigUnknownKeyException: unknown config key occurs.

The update still appears to ( partially? ) succeed as the info now shows nextcloud as 29.0.7

Steps to reproduce

1. Open the online updater
2. Perform the update
3. Disable the maintenance mode and continue with the update

Expected behavior

The update succeeds without any errors

Nextcloud Server version

29

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.3

Web server

Nginx

Database engine version

PostgreSQL

Is this bug present after an update or on a fresh install?

Updated from a MINOR version (ex. 28.0.1 to 28.0.2)

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "nextcloud.codepotatoes.de"
        ],
        "session_lifetime": 31536000,
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "pgsql",
        "version": "29.0.7.1",
        "overwrite.cli.url": "https:\/\/nextcloud.codepotatoes.de",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.local": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 0,
            "timeout": 0
        },
        "maintenance": false,
        "theme": "",
        "loglevel": 0,
        "updater.release.channel": "stable",
        "versions_retention_obligation": "auto, 13",
        "mail_smtpmode": "smtp",
        "mail_smtpsecure": "tls",
        "mail_sendmailmode": "smtp",
        "mail_smtpauthtype": "LOGIN",
        "mail_smtpauth": 1,
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "587",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "filelocking.enabled": true,
        "filelocking.ttl": 43200,
        "tempdirectory": "\/var\/wwwapps\/nextcloudTemp",
        "maintenance_window_start": 1
    }
}

List of activated Apps

Enabled:
  - activity: 2.21.1
  - bruteforcesettings: 2.9.0
  - calendar: 4.7.16
  - circles: 29.0.0-dev
  - cloud_federation_api: 1.12.0
  - comments: 1.19.0
  - contacts: 6.0.0
  - contactsinteraction: 1.10.0
  - dashboard: 7.9.0
  - dav: 1.30.1
  - federatedfilesharing: 1.19.0
  - federation: 1.19.0
  - files: 2.1.1
  - files_downloadlimit: 2.0.0
  - files_pdfviewer: 2.10.0
  - files_reminders: 1.2.0
  - files_sharing: 1.21.0
  - files_trashbin: 1.19.0
  - files_versions: 1.22.0
  - firstrunwizard: 2.18.0
  - logreader: 2.14.0
  - lookup_server_connector: 1.17.0
  - nextcloud_announcements: 1.18.0
  - notifications: 2.17.0
  - oauth2: 1.17.1
  - password_policy: 1.19.0
  - photos: 2.5.0
  - privacy: 1.13.0
  - provisioning_api: 1.19.0
  - recommendations: 2.1.0
  - related_resources: 1.4.0
  - richdocuments: 8.4.6
  - richdocumentscode: 24.4.502
  - serverinfo: 1.19.0
  - settings: 1.12.0
  - sharebymail: 1.19.0
  - spreed: 19.0.9
  - support: 1.12.0
  - survey_client: 1.17.0
  - systemtags: 1.19.0
  - text: 3.10.1
  - theming: 2.4.0
  - twofactor_backupcodes: 1.18.0
  - updatenotification: 1.19.1
  - user_status: 1.9.0
  - viewer: 2.3.0
  - weather_status: 1.9.0
  - workflowengine: 2.11.0
Disabled:
  - admin_audit: 1.19.0
  - encryption: 2.17.0
  - files_external: 1.21.0
  - files_rightclick: 0.15.1 (installed 1.6.0)
  - suspicious_login: 7.0.0
  - twofactor_totp: 11.0.0-dev
  - user_ldap: 1.20.0

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

# The nextcloud update log

Preparing update
Set log level to debug
Repair step: Repair MySQL collation
Repair info: Not a mysql database -> nothing to do
Repair step: Copy data from accounts table when migrating from ownCloud
Repair step: Drop account terms table when migrating from ownCloud
Updating database schema
Updated database
Repair step: Repair MySQL collation
Repair info: Not a mysql database -> nothing to do
Repair step: Copy data from accounts table when migrating from ownCloud
Repair step: Drop account terms table when migrating from ownCloud
Repair step: Update OAuth token expiration times
Updated "oauth2" to 1.17.1
Repair step: Repair MySQL collation
Repair info: Not a mysql database -> nothing to do
Repair step: Clean tags and favorites
Repair info: 0 tags of deleted users have been removed.
Repair info: 0 tags for delete files have been removed.
Repair info: 0 tag entries for deleted tags have been removed.
Repair info: 0 tags with no entries have been removed.
Repair step: Repair invalid shares
Repair step: Move .step file of updater to backup location
Repair step: Add move avatar background job
Repair info: Repair step already executed
Repair step: Add preview cleanup background jobs
Repair step: Migrate oauth2_clients table to nextcloud schema
Repair info: Update the oauth2_access_tokens table schema.
Repair info: Update the oauth2_clients table schema.
Repair info: Delete clients (and their related access tokens) with the redirect_uri starting with oc:// or ending with 
Repair step: Fix potential broken mount points
Repair info: No mounts updated
Repair step: Repair language codes
Repair step: Add log rotate job
Repair step: Clear frontend caches
Repair info: Image cache cleared
Repair info: JS cache cleared
Repair step: Clear every generated avatar
Repair step: Add preview background cleanup job
Repair step: Queue a one-time job to cleanup old backups of the updater
Repair step: Cleanup invalid photocache files for carddav
Repair step: Add background job to cleanup login flow v2 tokens
Repair step: Remove potentially over exposing share links
Repair info: No need to remove link shares.
Repair step: Clear access cache of projects
Repair step: Reset generated avatar flag
Repair step: Keep legacy encryption enabled
Repair step: Check encryption key format
Repair step: Remove old dashboard app config data
Repair step: Add job to cleanup the bruteforce entries
Repair step: Queue a one-time job to check for user uploaded certificates
Repair step: Repair DAV shares
Repair step: Add background job to set the lookup server share state for users
Repair step: Add token cleanup job
Repair step: Clean up abandoned apps
Repair step: Add possibly missing system config
Repair step: Add AI tasks cleanup job
Repair step: Queue a job to generate metadata
Repair step: migrate lazy config values
Repair step: Cache logo dimension to fix size in emails on Outlook
Repair info: Theming is not used to provide a logo
Starting code integrity check
OCP\Exceptions\AppConfigUnknownKeyException: unknown config key

# Extract from raw ( do you really need the whole log which are 15,5k lines )
[link to file](https://nextcloud.codepotatoes.de/s/KefRoENP6FdtXXy) due to github body limit

Additional info

It appears that despite this error the update did indeed succeed.

[joshtrichards]

Relevant excerpt from the logs:

{"reqId":"B2Da6LecNEmTtDBoAhFn","level":2,"time":"2024-09-13T09:53:10+00:00","remoteAddr":"202.46.155.170","user":"--","app":"core","method":"GET","url":"/core/ajax/update.php?requesttoken=gyFqKn5ng2%2FX4oo%2FUIPcpjxvdz9JpS7Rs4%2BD42Se%2BX0%3D%3A5UowSQsq5SKt2%2Fl8Z8ftwGhbT2sCklj%2Bws7AqiH3tjo%3D","message":"Value type is set to zero (0) in database. This is fine only during the upgrade process from 28 to 29.","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:130.0) Gecko/20100101 Firefox/130.0","version":"29.0.6.1","data":{"app":"core","key":"oc.integritycheck.checker"}}
{"reqId":"B2Da6LecNEmTtDBoAhFn","level":3,"time":"2024-09-13T09:53:10+00:00","remoteAddr":"202.46.155.170","user":"--","app":"no app in context","method":"GET","url":"/core/ajax/update.php?requesttoken=gyFqKn5ng2%2FX4oo%2FUIPcpjxvdz9JpS7Rs4%2BD42Se%2BX0%3D%3A5UowSQsq5SKt2%2Fl8Z8ftwGhbT2sCklj%2Bws7AqiH3tjo%3D","message":"unknown config key","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:130.0) Gecko/20100101 Firefox/130.0","version":"29.0.6.1","exception":{"Exception":"OCP\\Exceptions\\AppConfigUnknownKeyException","Message":"unknown config key","Code":0,"Trace":[{"file":"/var/www/nextcloud/lib/private/AppConfig.php","line":831,"function":"isLazy","class":"OC\\AppConfig","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppConfig.php","line":713,"function":"setTypedValue","class":"OC\\AppConfig","type":"->"},{"file":"/var/www/nextcloud/lib/private/IntegrityCheck/Checker.php","line":435,"function":"setValueArray","class":"OC\\AppConfig","type":"->"},{"file":"/var/www/nextcloud/lib/private/IntegrityCheck/Checker.php","line":550,"function":"storeResults","class":"OC\\IntegrityCheck\\Checker","type":"->"},{"file":"/var/www/nextcloud/lib/private/IntegrityCheck/Checker.php","line":561,"function":"verifyCoreSignature","class":"OC\\IntegrityCheck\\Checker","type":"->"},{"file":"/var/www/nextcloud/lib/private/Updater.php","line":303,"function":"runInstanceVerification","class":"OC\\IntegrityCheck\\Checker","type":"->"},{"file":"/var/www/nextcloud/lib/private/Updater.php","line":133,"function":"doUpgrade","class":"OC\\Updater","type":"->"},{"file":"/var/www/nextcloud/core/ajax/update.php","line":193,"function":"upgrade","class":"OC\\Updater","type":"->"}],"File":"/var/www/nextcloud/lib/private/AppConfig.php","Line":203,"message":"unknown config key","exception":{},"CustomMessage":"unknown config key"}}
{"reqId":"B2Da6LecNEmTtDBoAhFn","level":3,"time":"2024-09-13T09:53:10+00:00","remoteAddr":"202.46.155.170","user":"--","app":"updater","method":"GET","url":"/core/ajax/update.php?requesttoken=gyFqKn5ng2%2FX4oo%2FUIPcpjxvdz9JpS7Rs4%2BD42Se%2BX0%3D%3A5UowSQsq5SKt2%2Fl8Z8ftwGhbT2sCklj%2Bws7AqiH3tjo%3D","message":"\\OC\\Updater::failure: OCP\\Exceptions\\AppConfigUnknownKeyException: unknown config key","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:130.0) Gecko/20100101 Firefox/130.0","version":"29.0.6.1","data":{"app":"updater"}}
{"reqId":"B2Da6LecNEmTtDBoAhFn","level":3,"time":"2024-09-13T09:53:10+00:00","remoteAddr":"202.46.155.170","user":"--","app":"updater","method":"GET","url":"/core/ajax/update.php?requesttoken=gyFqKn5ng2%2FX4oo%2FUIPcpjxvdz9JpS7Rs4%2BD42Se%2BX0%3D%3A5UowSQsq5SKt2%2Fl8Z8ftwGhbT2sCklj%2Bws7AqiH3tjo%3D","message":"\\OC\\Updater::updateEnd: Update failed","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:130.0) Gecko/20100101 Firefox/130.0","version":"29.0.6.1","data":{"app":"updater"}}

[joshtrichards]

This was likely fixed. I believe by #52832

[fwsmit]

I used to get this error also, but in the latest upgrade it didn't occur. So I believe it's been fixed yeah