Error in nextcloud.log after logout

[Nils160988]

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Steps to reproduce

1. Upgrade to 19 Beta 2
2. Login with a user
3. Logout with this user

Expected behaviour

No error messages in log

Actual behaviour

The nextcloud log shows an error each time a user logs out. So far, I can see no further effects, but it might be interesting for you to find the cause for this error.

Server configuration

Operating system: Ubuntu 18.04.3

Web server: apache 2.4.29

Database: mariadb 10.1.44

PHP version: 7.2.24

Nextcloud version: 19.0.0.3 (Beta 2)

Updated from an older Nextcloud/ownCloud or fresh install: updated

Where did you install Nextcloud from: nextcloud.com

Signing status:

Signing status

No errors have been found.

List of activated apps:

App list

Enabled:
  - accessibility: 1.5.0
  - activity: 2.12.0
  - announcementcenter: 3.8.0
  - calendar: 2.0.3
  - cloud_federation_api: 1.2.0
  - comments: 1.9.0
  - contacts: 3.2.0
  - contactsinteraction: 1.0.0
  - dav: 1.15.0
  - deck: 0.8.2
  - drawio: 0.9.5
  - federatedfilesharing: 1.9.0
  - federation: 1.9.0
  - files: 1.14.0
  - files_mindmap: 0.0.21
  - files_pdfviewer: 1.8.0
  - files_rightclick: 0.16.0
  - files_sharing: 1.11.0
  - files_trashbin: 1.9.0
  - files_versions: 1.12.0
  - files_videoplayer: 1.8.0
  - firstrunwizard: 2.8.0
  - groupfolders: 6.0.5
  - logreader: 2.4.0
  - lookup_server_connector: 1.7.0
  - nextcloud_announcements: 1.8.0
  - notifications: 2.7.0
  - oauth2: 1.7.0
  - password_policy: 1.9.0
  - photos: 1.1.0
  - privacy: 1.3.0
  - provisioning_api: 1.9.0
  - recommendations: 0.7.0
  - serverinfo: 1.9.0
  - settings: 1.1.0
  - sharebymail: 1.9.0
  - systemtags: 1.9.0
  - tasks: 0.12.1
  - text: 3.0.1
  - theming: 1.10.0
  - twofactor_backupcodes: 1.8.0
  - twofactor_totp: 4.1.3
  - updatenotification: 1.9.0
  - viewer: 1.3.0
  - workflowengine: 2.1.0
Disabled:
  - admin_audit
  - apporder
  - circles
  - documentserver_community
  - encryption
  - event_update_notification
  - external
  - files_automatedtagging
  - files_external
  - group_everyone
  - impersonate
  - onlyoffice
  - polls
  - ransomware_protection
  - spreed
  - support
  - survey_client
  - user_ldap
  - user_usage_report
  - workflow_pdf_converter
  - workflow_script

Nextcloud configuration:

Config report

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "test.xyz.de"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "overwrite.cli.url": "https:\/\/test.xyz.de\/nextcloud",
        "htaccess.RewriteBase": "\/",
        "dbtype": "mysql",
        "version": "19.0.0.3",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "mail_smtpmode": "sendmail",
        "mail_smtpauthtype": "LOGIN",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "default_language": "de",
        "default_locale": "de_DE",
        "logtimezone": "Europe\/Berlin",
        "theme": "",
        "loglevel": 2,
        "updater.release.channel": "beta",
        "skeletondirectory": "\/var\/www\/default-files",
        "maintenance": false,
        "mysql.utf8mb4": true,
        "data-fingerprint": "01ab1f439dc59f5b900a4be407aad640",
        "activity_use_cached_mountpoints": "true"
    }
}

Are you using external storage, if yes which one: no

Are you using encryption: no

Are you using an external user-backend, if yes which one: no

Client configuration

Browser: Firefox 75.0

Operating system:

Logs

Web server error log

Web server error log

xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:20 +0200] "GET /logout?requesttoken=vEJgmQniP3UEkDYUF9HDKAocjDxE1t9YtyRByfPKudQ%3D%3AhTYW4XGpBydB4n1feKiGf019znYr%2BYki%2BEEZkJ%2F7gbg%3D HTTP/1.1" 303 1959 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:20 +0200] "GET /login?clear=1 HTTP/1.1" 303 879 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:20 +0200] "GET /login?clear=1 HTTP/1.1" 200 4921 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /apps/deck/css/activity.css?v=2ebc9247-8 HTTP/1.1" 200 928 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /apps/files_pdfviewer/css/style.css?v=4fda350b-8 HTTP/1.1" 200 910 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /core/css/guest.css?v=4f951eb8-8 HTTP/1.1" 200 6243 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /apps/files_sharing/l10n/de.js?v=4f951eb8-8 HTTP/1.1" 200 5993 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /core/search/js/search.js?v=4f951eb8-8 HTTP/1.1" 200 2700 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /core/l10n/de.js?v=4f951eb8-8 HTTP/1.1" 200 19128 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /apps/files_sharing/js/dist/main.js?v=4f951eb8-8 HTTP/1.1" 200 1719 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /apps/files_pdfviewer/js/previewplugin.js?v=4f951eb8-8 HTTP/1.1" 200 2931 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /apps/theming/styles?v=8 HTTP/1.1" 200 1840 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /apps/files_videoplayer/js/main.js?v=4f951eb8-8 HTTP/1.1" 200 3392 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /core/js/files/fileinfo.js?v=4f951eb8-8 HTTP/1.1" 200 1565 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /core/search/js/searchprovider.js?v=4f951eb8-8 HTTP/1.1" 200 4431 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /core/js/files/client.js?v=4f951eb8-8 HTTP/1.1" 200 6408 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /js/core/merged-template-prepend.js?v=4f951eb8-8 HTTP/1.1" 200 4297 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /apps/accessibility/js/accessibility?v=0 HTTP/1.1" 200 951 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /core/js/dist/login.js?v=4f951eb8-8 HTTP/1.1" 200 229195 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /apps/theming/js/theming?v=8 HTTP/1.1" 200 1130 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /core/js/dist/main.js?v=4f951eb8-8 HTTP/1.1" 200 423540 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:21 +0200] "GET /svg/core/logo/logo?color=fff&v=1 HTTP/1.1" 200 1169 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:22 +0200] "GET /core/img/favicon.ico HTTP/1.1" 200 3884 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"
xxx.xxx.xxx.xxx - - [15/Apr/2020:00:18:22 +0200] "GET /core/img/favicon-touch.png HTTP/1.1" 200 3525 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0"

Nextcloud log (data/nextcloud.log)

Nextcloud log

{"reqId":"lKYXO4j9SrEvPvDGVDpJ","level":3,"time":"2020-04-15T00:18:20+02:00","remoteAddr":"xxx.xxx.xxx.xxx","user":"--","app":"PHP","method":"GET","url":"/logout?requesttoken=vEJgmQniP3UEkDYUF9HDKAocjDxE1t9YtyRByfPKudQ%3D%3AhTYW4XGpBydB4n1feKiGf019znYr%2BYki%2BEEZkJ%2F7gbg%3D","message":"session_start(): A session had already been started - ignoring at /var/www/test-nextcloud/lib/private/Session/Internal.php#209","userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0","version":"19.0.0.3"}

[cgzones]

OS: Debian Sid
Apache: 2.4.43-1
PHP: 7.4.5-1

{"reqId":"XqHXTWUb@-TAzm7MZj0EaQAAAAg","level":3,"time":"2020-04-23T17:58:37+00:00","remoteAddr":"replaced_ip","user":"--","app":"PHP","method":"GET","url":"/index.php/logout?requesttoken=replaced_token","message":"session_start(): A session had already been started - ignoring at /var/www/sites/nextcloud/lib/private/Session/Internal.php#209","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0","version":"19.0.0.6"}

[MeiRos]

I have this issue too. I opened a thread about it few days ago. There are more information about my setup etc.
https://help.nextcloud.com/t/a-session-had-already-been-started/81037

[AndyXheli]

Im also getting the following on NC 19 RC2 PHP 7.4.6, MYSQL, APACHE2

session_start(): A session had already been started - ignoring at /var/www/nextcloud/lib/private/Session/Internal.php#209

[LHollyfeld]

And again the error in the new 19.0.0 without RCxxxx

{"reqId":"4fyReJxUH3PJwpvKtZDr","level":3,"time":"2020-05-27T10:32:22+02:00","remoteAddr":"192.168.10.180","user":"--","app":"PHP","method":"GET","url":"/nextcloud/index.php/logout?requesttoken=TnYhjbweqYplNl6PSmVlAZSFf0UwA9%2B7WVHSBimyobQ%3D%3AFwVZxc176LoWdxa8MFILZN%2FoJhRpUo3qAB2FMUjiw%2Bc%3D","message":"session_start(): A session had already been started - ignoring at /var/www/nextcloud/lib/private/Session/Internal.php#209","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:76.0) Gecko/20100101 Firefox/76.0","version":"19.0.0.12"}

Ubuntu Server 20.04, PHP 7.4.3, MySQL and Apache2. Update from Nextcloud 18.04.

[Ruinenarr]

Got the same problem. Fresh instalation, 19.0.0

[tacruc]

Probably related to: nextcloud/maps#397

[Rob3487]

Same issue , fresh instalation , 19.0.0
Ubuntu 20.04
Apache 2.4.41
PHP 7.3.18

[ml94]

Same issue with fresh instalation too.

Operating system: Ubuntu 20.04
Web server: Nginx
Database: MariaDB
PHP version: 7.4.3
Nextcloud Version: 19.0.0