I am pretty sure I am suffering the same issues as @Grom does, but I did not want to hijack the post.
The Basics
- Nextcloud Server version (e.g., 29.x.x):
30.0.3
- Operating system and version (e.g., Ubuntu 24.04):
Ubuntu 24.04.1 LTS
- Web server and version (e.g, Apache 2.4.25):
Apache/2.4.58 (Ubuntu)
- Reverse proxy and version _(e.g. nginx 1.27.2)
nginx/1.26.2
- PHP version (e.g, 8.3):
PHP 8.3.6
- Is this the first time you’ve seen this error? (Yes / No):
yes
- When did this problem seem to first start?
30.0.3
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
bare metal
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
no
Summary of the issue you are facing:
Nextcloud becomes unreachable and the Apache2 webserver throws Error the 503 error.
The Ubuntu VM of the Nextcloud host, shows this error.
Steps to replicate it (hint: details matter!):
I unfortunately don’t know
Log entries
Nextcloud
First this error happened twice
[richdocuments] Fehler: Failed to convert preview: cURL error 28: Operation timed out after 5002 milliseconds with 0 bytes received (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://cloud.redacteddomain.com/apps/richdocumentscode/proxy.php?req=/cool/convert-to/png
GET /index.phpiew?forceIcon=0&a=0&c=174abf8e3a3f6f82519704a387c59ed8&x=250&y=250&fileId=994721
von redactedIPv4 von readactedusername um 11.12.2024, 20:13:47
then this error happened four times
{"reqId":"fKSYWW1lS45ArIlFBT3Y","level":3,"time":"2024-12-11T21:05:01+00:00","remoteAddr":"","user":"--","app":"richdocuments","method":"","url":"--","message":"Failed to fetch discovery: Server error: `GET https://cloud.redacteddomain/apps/richdocumentscode/proxy.php?req=/hosting/discovery` resulted in a `503 Service Unavailable` response:\n<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n<html><head>\n<title>503 Service Unavailable</title>\n</head><body>\n<h1 (truncated...)\n","userAgent":"--","version":"30.0.3.2","exception":{"Exception":"GuzzleHttp\\Exception\\ServerException","Message":"Server error: `GET https://cloud.redacteddomain/apps/richdocumentscode/proxy.php?req=/hosting/discovery` resulted in a `503 Service Unavailable` response:\n<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n<html><head>\n<title>503 Service Unavailable</title>\n</head><body>\n<h1 (truncated...)\n","Code":503,"Trace":[{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Middleware.php","line":72,"function":"create","class":"GuzzleHttp\\Exception\\RequestException","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php","line":209,"function":"GuzzleHttp\\{closure}","class":"GuzzleHttp\\Middleware","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php","line":158,"function":"callHandler","class":"GuzzleHttp\\Promise\\Promise","type":"::"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/TaskQueue.php","line":52,"function":"GuzzleHttp\\Promise\\{closure}","class":"GuzzleHttp\\Promise\\Promise","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php","line":251,"function":"run","class":"GuzzleHttp\\Promise\\TaskQueue","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php","line":227,"function":"invokeWaitFn","class":"GuzzleHttp\\Promise\\Promise","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php","line":272,"function":"waitIfPending","class":"GuzzleHttp\\Promise\\Promise","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php","line":229,"function":"invokeWaitList","class":"GuzzleHttp\\Promise\\Promise","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/promises/src/Promise.php","line":69,"function":"waitIfPending","class":"GuzzleHttp\\Promise\\Promise","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Client.php","line":189,"function":"wait","class":"GuzzleHttp\\Promise\\Promise","type":"->"},{"file":"/var/www/nextcloud/lib/private/Http/Client/Client.php","line":205,"function":"request","class":"GuzzleHttp\\Client","type":"->"},{"file":"/var/www/nextcloud/apps/richdocuments/lib/Service/DiscoveryService.php","line":59,"function":"get","class":"OC\\Http\\Client\\Client","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/apps/richdocuments/lib/Service/CachedRequestService.php","line":74,"function":"sendRequest","class":"OCA\\Richdocuments\\Service\\DiscoveryService","type":"->"},{"file":"/var/www/nextcloud/apps/richdocuments/lib/Backgroundjobs/ObtainCapabilities.php","line":41,"function":"fetch","class":"OCA\\Richdocuments\\Service\\CachedRequestService","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":61,"function":"run","class":"OCA\\Richdocuments\\Backgroundjobs\\ObtainCapabilities","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":88,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":75,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":162,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Exception/RequestException.php","Line":113,"message":"Failed to fetch discovery: Server error: `GET https://cloud.redacteddomain/apps/richdocumentscode/proxy.php?req=/hosting/discovery` resulted in a `503 Service Unavailable` response:\n<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n<html><head>\n<title>503 Service Unavailable</title>\n</head><body>\n<h1 (truncated...)\n","exception":[],"CustomMessage":"Failed to fetch discovery: Server error: `GET https://cloud.redacteddomain/apps/richdocumentscode/proxy.php?req=/hosting/discovery` resulted in a `503 Service Unavailable` response:\n<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n<html><head>\n<title>503 Service Unavailable</title>\n</head><body>\n<h1 (truncated...)\n"},"id":"675a07d4a6481"}
Web server / Reverse Proxy
Apache2 on the Nextcloud VM
[Wed Dec 11 21:14:31.882616 2024] [proxy:error] [pid 5492:tid 124479791433408] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /run/php/php8.3-fpm.sock (*:80) failed
[Wed Dec 11 21:14:31.882647 2024] [proxy_fcgi:error] [pid 5492:tid 124479791433408] [client 10.0.56.4:60568] AH01079: failed to make connection to backend: httpd-UDS
[Wed Dec 11 21:14:54.556129 2024] [proxy:error] [pid 5493:tid 124479558649536] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /run/php/php8.3-fpm.sock (*:80) failed
[Wed Dec 11 21:14:54.556163 2024] [proxy_fcgi:error] [pid 5493:tid 124479558649536] [client 10.0.56.4:33752] AH01079: failed to make connection to backend: httpd-UDS
[Wed Dec 11 21:14:54.578083 2024] [proxy:error] [pid 5493:tid 124479527192256] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /run/php/php8.3-fpm.sock (*:80) failed
[Wed Dec 11 21:14:54.578105 2024] [proxy_fcgi:error] [pid 5493:tid 124479527192256] [client 10.0.56.4:33762] AH01079: failed to make connection to backend: httpd-UDS
can’t find any relating errors in the NGINX logs.
Configuration
Nextcloud
{
"system": {
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"cloud.redacted.domain"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "30.0.3.2",
"overwrite.cli.url": "https:\/\/cloud.redacted.domain",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"trusted_proxies": "***REMOVED SENSITIVE VALUE***",
"updatedirectory": "\/var\/www\/updateDirNextcloud",
"default_language": "de",
"default_locale": "de_CH",
"default_phone_region": "CH",
"overwriteprotocol": "https",
"overwritewebroot": "\/",
"overwritecondaddr": "10.0.56.4",
"htaccess.RewriteBase": "\/",
"mail_smtpmode": "smtp",
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_sendmailmode": "smtp",
"mail_smtpauth": 1,
"mail_smtpport": "587",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"memcache.local": "\\OC\\Memcache\\APCu",
"memcache.locking": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": 0
},
"maintenance": false,
"theme": "",
"loglevel": 2,
"maintenance_window_start": 1
}
}
Apps
Enabled:
- activity: 3.0.0
- app_api: 4.0.3
- bruteforcesettings: 3.0.0
- calendar: 5.0.6
- circles: 30.0.0
- cloud_federation_api: 1.13.0
- comments: 1.20.1
- contactsinteraction: 1.11.0
- dashboard: 7.10.0
- dav: 1.31.1
- federatedfilesharing: 1.20.0
- files: 2.2.0
- files_downloadlimit: 3.0.0
- files_pdfviewer: 3.0.0
- files_reminders: 1.3.0
- files_sharing: 1.22.0
- files_trashbin: 1.20.1
- files_versions: 1.23.0
- firstrunwizard: 3.0.0
- forms: 4.3.4
- logreader: 3.0.0
- lookup_server_connector: 1.18.0
- nextcloud_announcements: 2.0.0
- notifications: 3.0.0
- oauth2: 1.18.1
- password_policy: 2.0.0
- photos: 3.0.2
- privacy: 2.0.0
- provisioning_api: 1.20.0
- recommendations: 3.0.0
- related_resources: 1.5.0
- richdocuments: 8.5.3
- richdocumentscode: 24.4.1002
- serverinfo: 2.0.0
- settings: 1.13.0
- sharebymail: 1.20.0
- systemtags: 1.20.0
- tasks: 0.16.1
- text: 4.1.0
- theming: 2.5.0
- twofactor_backupcodes: 1.19.0
- twofactor_totp: 12.0.0-dev
- updatenotification: 1.20.0
- viewer: 3.0.0
- webhook_listeners: 1.1.0-dev
- workflowengine: 2.12.0
Disabled:
- admin_audit: 1.20.0
- encryption: 2.18.0
- federation: 1.20.0 (installed 1.17.0)
- files_external: 1.22.0
- support: 2.0.0 (installed 1.10.0)
- survey_client: 2.0.0 (installed 1.15.0)
- suspicious_login: 8.0.0
- twofactor_nextcloud_notification: 4.0.0
- user_ldap: 1.21.0
- user_status: 1.10.0 (installed 1.7.0)
- weather_status: 1.10.0 (installed 1.7.0)```