nextcloud
[Bug]: Server reported no ETag on CIFS share mounted over external storage function
⚠️ This issue respects the following points: ⚠️
- [X] This is a bug, not 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 for supported versions.
- [X] Nextcloud Server is running on 64bit capable CPU, PHP and OS.
- [X] I agree to follow Nextcloud's Code of Conduct.
Bug description
Hello,
I have an issue with external storage mounted over SMB, the host ist Microfocus Open Enterprise Server 2018 SP3 with CIFS enabled, over said CIFS interface we are accessing underlying NSS Volumes and everything is working just fine when you access the shares using web interface of Nextcloud, problems start when we use Nextcloud client and try to sync shared volumes.
At some point Nextcloud client stops syncing and says “Server reported no ETag” at the same time I can find following error in Nextcloud log:
App: webdav Message: Sabre\DAV\Exception\ServiceUnavailable: Storage with mount id 7 is not available
It says that storage is not accessible, but using Web Interface of Nextcloud I can browse whole share, see all files, open and edit them, so the issue seems to be only on webdav part of nextcloud which is used for the client. By the way, the log is kind of flooded with said error, as we have multiple shares its not always number 7, but it is the same error regarding same CIFS host server.
I hoped that it is some kind of cosmetic error message, but no, after client throws this error, it stops syncing and if you browse to the shares using explorer, you dont see all the subfolders of the share, only a part of it, but at the same time if you browse to this folders using web interface of nextcloud - everything ist there and can be accessed and modified without any issues. So Im kind of clueless right now, it is working fine on the web, but has massive issues on the client.
Best Regards, Aleks
Steps to reproduce
- Mount large external CIFS Storage, aprox. 300GB. (SMB Emulation on Linux)
- Install Nextcloud Client.
- Start to synchronize the share.
- Wait till client starts reporting "Server reported no ETag".
Expected behavior
Nextcloud client should synchronize the share without throwing "Server reported no ETag" error. Also after client reports this error, synchronisations stops and if you browse to the folders using explorer, there are folders that are missing, if you open same path using Web Interface and not Client, all folders and files in there are visible and can be accessed and modified.
Installation method
Community VM appliance
Operating system
Debian/Ubuntu
PHP engine version
PHP 8.1
Web server
Nginx
Database engine version
PostgreSQL
Is this bug present after an update or on a fresh install?
Fresh Nextcloud Server install
Are you using the Nextcloud Server Encryption module?
Encryption is Disabled
What user-backends are you using?
- [ ] Default user-backend (database)
- [X] LDAP/ Active Directory
- [ ] SSO - SAML
- [ ] Other
Configuration report
{
"system": {
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"nextcloud.rs-radolfzell.de"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "pgsql",
"version": "24.0.5.1",
"overwrite.cli.url": "https:\/\/nextcloud.rs-radolfzell.de",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"mail_smtpmode": "smtp",
"mail_sendmailmode": "smtp",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "25",
"mail_smtpauthtype": "LOGIN",
"mail_smtpauth": 1,
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"mail_smtpsecure": "tls",
"default_phone_region": "DE",
"memcache.local": "\\OC\\Memcache\\APCu",
"overwriteprotocol": "https",
"logtimezone": "Europe\/Berlin",
"maintenance_window_start": 1,
"filelocking.enabled": true,
"memcache.locking": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": 0,
"timeout": 0
},
"ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory",
"skeletondirectory": "",
"templatedirectory": "",
"maintenance": false,
"theme": "",
"loglevel": 2
}
}
List of activated Apps
Enabled:
- accessibility: 1.10.0
- activity: 2.16.0
- bruteforcesettings: 2.4.0
- circles: 24.0.1
- cloud_federation_api: 1.7.0
- comments: 1.14.0
- contactsinteraction: 1.5.0
- dashboard: 7.4.0
- dav: 1.22.0
- federatedfilesharing: 1.14.0
- federation: 1.14.0
- files: 1.19.0
- files_external: 1.16.1
- files_pdfviewer: 2.5.0
- files_rightclick: 1.3.0
- files_sharing: 1.16.2
- files_trashbin: 1.14.0
- files_versions: 1.17.0
- files_videoplayer: 1.13.0
- firstrunwizard: 2.13.0
- logreader: 2.9.0
- lookup_server_connector: 1.12.0
- nextcloud_announcements: 1.13.0
- notifications: 2.12.1
- oauth2: 1.12.0
- password_policy: 1.14.0
- photos: 1.6.0
- privacy: 1.8.0
- provisioning_api: 1.14.0
- recommendations: 1.3.0
- richdocuments: 6.2.0
- richdocumentscode: 22.5.502
- serverinfo: 1.14.0
- settings: 1.6.0
- sharebymail: 1.14.0
- support: 1.7.0
- survey_client: 1.12.0
- systemtags: 1.14.0
- text: 3.5.1
- theming: 1.15.0
- twofactor_backupcodes: 1.13.0
- updatenotification: 1.14.0
- user_ldap: 1.14.1
- user_status: 1.4.0
- viewer: 1.8.0
- weather_status: 1.4.0
- workflowengine: 2.6.0
Disabled:
- admin_audit
- encryption
Nextcloud Signing status
No errors have been found.
Nextcloud Logs
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Tree.php - line 78:OCA\DAV\Connector\Sabre\Directory->getChild()
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Tree.php - line 73:Sabre\DAV\Tree->getNodeForPath()
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Tree.php - line 73:Sabre\DAV\Tree->getNodeForPath()
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Tree.php - line 73:Sabre\DAV\Tree->getNodeForPath()
/var/www/nextcloud/apps/dav/lib/DAV/ViewOnlyPlugin.php - line 74:Sabre\DAV\Tree->getNodeForPath()
/var/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php - line 89:OCA\DAV\DAV\ViewOnlyPlugin->checkViewOnly()
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 472:Sabre\DAV\Server->emit()
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 253:Sabre\DAV\Server->invokeMethod()
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 321:Sabre\DAV\Server->start()
/var/www/nextcloud/apps/dav/lib/Server.php - line 358:Sabre\DAV\Server->exec()
/var/www/nextcloud/apps/dav/appinfo/v2/remote.php - line 35:OCA\DAV\Server->exec()
/var/www/nextcloud/remote.php - line 166:require_once(“/var/www/ne … p”)
Additional info
CIFS Share is hosted by Microfocus Open Enterprise Server 2018 SP3. (Based on SLES 12 SP5)
Nextcloud version: 24.0.5 Operating system and version: Debian 11.3 nginx version: 1.22.0 PHP version: 8.1.9 Nextcloud Client: Newest version, tested on Windows an Mac
