Some of your Link Shares have been removed - Data lost

[gboisvert]

Steps to reproduce

Message "Some of your link shares has been removed". I had the message with v15, upgraded to v16, message still there. Found the missing directories under /var/www/html/nextcloud/data/__groupfolders

Expected behaviour

• Message with real meaning (with explanation)
• NEVER EVER LOOSE DATA (well not completely lost here but i had almost a heart attack seeing the folders disappeared under my user's account)
• To have some kind of procedure to fix this issue

Actual behaviour

• Folders just disappeared
• Message with no explanation
• Software took action without acknowledge from the admin resulting in lost of data for user / groups
• Difficult to take action, fear of worsening the situation (like moving / renaming the found folders back to user's directory)
• The missing folders "definitions" seems to hang somewhere, how to fix / stop the annoying message for good

Server configuration detail

Operating system: Linux 3.10.0-957.21.3.el7.x86_64 #1 SMP Tue Jun 18 16:35:19 UTC 2019 x86_64

Webserver: Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.1.29 (apache2handler)

Database: mysql 5.5.60

PHP version:

7.1.29
Modules loaded: Core, date, libxml, openssl, pcre, zlib, filter, hash, Reflection, SPL, session, standard, apache2handler, bz2, calendar, ctype, curl, dom, mbstring, fileinfo, ftp, gd, gettext, gmp, iconv, igbinary, imagick, intl, json, exif, mcrypt, mysqlnd, mysqli, PDO, pdo_mysql, pdo_sqlite, Phar, posix, shmop, SimpleXML, sockets, sqlite3, sysvmsg, sysvsem, sysvshm, tokenizer, xml, wddx, xmlreader, xmlwriter, xsl, memcached, zip, Zend OPcache

Nextcloud version: 16.0.1 - 16.0.1.1

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

Where did you install Nextcloud from: https://download.nextcloud.com/server/releases/latest.tar.bz2 (a while back)

Signing status

Array
(
)

List of activated apps

Enabled:
 - accessibility: 1.2.0
 - activity: 2.9.1
 - bookmarks: 1.0.6
 - calendar: 1.7.0
 - cloud_federation_api: 0.2.0
 - comments: 1.6.0
 - contacts: 3.1.3
 - dav: 1.9.2
 - federatedfilesharing: 1.6.0
 - federation: 1.6.0
 - files: 1.11.0
 - files_external: 1.7.0
 - files_pdfviewer: 1.5.0
 - files_rightclick: 0.13.0
 - files_sharing: 1.8.0
 - files_texteditor: 2.8.0
 - files_trashbin: 1.6.0
 - files_versions: 1.9.0
 - files_videoplayer: 1.5.0
 - firstrunwizard: 2.5.0
 - gallery: 18.3.0
 - issuetemplate: 0.5.0
 - keeweb: 0.5.1
 - logreader: 2.1.0
 - lookup_server_connector: 1.4.0
 - nextcloud_announcements: 1.5.0
 - notifications: 2.4.1
 - oauth2: 1.4.2
 - password_policy: 1.6.0
 - passwords: 2019.6.0
 - privacy: 1.0.0
 - provisioning_api: 1.6.0
 - recommendations: 0.4.0
 - serverinfo: 1.6.0
 - sharebymail: 1.6.0
 - spreed: 6.0.2
 - support: 1.0.0
 - survey_client: 1.4.0
 - systemtags: 1.6.0
 - theming: 1.7.0
 - twofactor_backupcodes: 1.5.0
 - updatenotification: 1.6.0
 - viewer: 1.0.0
 - workflowengine: 1.6.0
Disabled:
 - admin_audit
 - encryption
 - groupfolders
 - user_ldap

Configuration (config/config.php)

{
    "instanceid": "***REMOVED SENSITIVE VALUE***",
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "trusted_domains": [
        "172.16.1.125",
        "***REMOVED SENSITIVE VALUE***"
    ],
    "datadirectory": "***REMOVED SENSITIVE VALUE***",
    "overwrite.cli.url": "http:\/\/172.16.1.225\/nextcloud",
    "dbtype": "mysql",
    "version": "16.0.1.1",
    "dbname": "***REMOVED SENSITIVE VALUE***",
    "dbhost": "***REMOVED SENSITIVE VALUE***",
    "dbport": "",
    "dbtableprefix": "oc_",
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "installed": true,
    "maintenance": false,
    "theme": "",
    "loglevel": 2,
    "mail_from_address": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpmode": "php",
    "mail_smtpauthtype": "LOGIN",
    "mail_domain": "***REMOVED SENSITIVE VALUE***",
    "updater.secret": "***REMOVED SENSITIVE VALUE***"
}

Are you using external storage, if yes which one:

Are you using encryption: Files? Communication (https) ? Other? Blurry question IMHO!

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

Client configuration

Browser: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:67.0) Gecko/20100101 Firefox/67.0

Operating system: Ubuntu 18.04 LTS

Logs

Web server error log

N/A

Nextcloud log

Error	index	OCP\Files\NotFoundException: /user1/files/Directory1

    /var/www/html/nextcloud/lib/private/Files/Node/Folder.php - line 134:

    OC\Files\Node\Root->get("/boig01/files/Famille")

    /var/www/html/nextcloud/apps/recommendations/lib/Service/RecentlySharedFilesSource.php - line 122:

    OC\Files\Node\Folder->get("/Famille")

    <<closure>>

    OCA\Recommendations\Service\RecentlySharedFilesSource->OCA\Recommendations\Service\{closure}("*** sensiti ... *")

    /var/www/html/nextcloud/apps/recommendations/lib/Service/RecentlySharedFilesSource.php - line 127:

    array_map(Closure {}, [ OC\Share20 ... }])

    /var/www/html/nextcloud/apps/recommendations/lib/Service/RecommendationService.php - line 91:

    OCA\Recommendations\Service\RecentlySharedFilesSource->getMostRecentRecommendation(OC\User\User {}, 6)

    <<closure>>

    OCA\Recommendations\Service\RecommendationService->OCA\Recommendations\Service\{closure}("*** sensiti ... *")

    /var/www/html/nextcloud/apps/recommendations/lib/Service/RecommendationService.php - line 92:

    array_reduce([ OCA\Recomm ... "], Closure {}, [])

    /var/www/html/nextcloud/apps/recommendations/lib/Controller/RecommendationController.php - line 63:

    OCA\Recommendations\Service\RecommendationService->getRecommendations(OC\User\User {})

    /var/www/html/nextcloud/lib/private/AppFramework/Http/Dispatcher.php - line 166:

    OCA\Recommendations\Controller\RecommendationController->index()

    /var/www/html/nextcloud/lib/private/AppFramework/Http/Dispatcher.php - line 99:

    OC\AppFramework\Http\Dispatcher->executeController(OCA\Recommen ... {}, "index")

    /var/www/html/nextcloud/lib/private/AppFramework/App.php - line 126:

    OC\AppFramework\Http\Dispatcher->dispatch(OCA\Recommen ... {}, "index")

    /var/www/html/nextcloud/lib/private/AppFramework/Routing/RouteActionHandler.php - line 47:

    OC\AppFramework\App::main("OCA\\Recomm ... r", "index", OC\AppFramew ... {}, { _route: "r ... "})

    <<closure>>

    OC\AppFramework\Routing\RouteActionHandler->__invoke({ _route: "r ... "})

    /var/www/html/nextcloud/lib/private/Route/Router.php - line 297:

    call_user_func(OC\AppFramew ... {}, { _route: "r ... "})

    /var/www/html/nextcloud/lib/base.php - line 975:

    OC\Route\Router->match("/apps/recom ... s")

    /var/www/html/nextcloud/index.php - line 42:

    OC::handleRequest()

Browser log

N/A

[kesselb]

Some of your Link Shares have been removed

Code behind this message does not delete any file. It's about link shares. Is Famille your folder or a folder shared to you by another user? Is there something else in the logs?

"mail_smtpmode": "php",

Not related to your issue: This way of sending emails is not longer supported. Please update your configuration.

[gboisvert]

@kesselb Well, i'm a sysadmin with a problem to solve! I can understand that the code behind doesn't delete or move any file. I reported the message and what i found around it. So sorry if the title is misleading but it is what we got. So what do you suggest? Thanks for your time / patience. I'm new to this and i promised you won't have to repeat!!!

[kesselb]

Well, i'm a sysadmin with a problem to solve! I can understand that the code behind doesn't delete or move any file. I reported the message and what i found around it.

That was just a hint. We need to look deeper.

So what do you suggest?

Is Famille your folder or a folder shared to you by another user? Is there something else in the logs?

[jospoortvliet]

also see https://help.nextcloud.com/t/some-of-your-link-shares-have-been-removed-15-0-8/53522 ;-)

[skjnldsv]

Duplicate of #15643