Nextcloud version (eg, 20.0.5): 20.0.14.2
Operating system and version (eg, Ubuntu 20.04): Linux 2.6.32-754.27.1.el6.x86_64
Apache or nginx version (eg, Apache 2.4.25): unknown
PHP version (eg, 7.4): 7.2
Hello,
I installed Nextcloud mainly for hosting picture files.
However after a while (which can be immediately after upload) I cannot access some of the uploaded files any more. First of all, the preview icon of such a file is grayed out and when I click on it then I get: “Error Loading filename”.
I cannot see any rule on what files are affected.
The picture files themselves on the server are still ok so I guess it has something to do with preview files which get corrupted - or deleted.
My installation is within a webspace environment of the German Provider Netcup.
It has some limitations, amoung others PHP limits.
Could it be that those limits are causing my troubles?
I am running the Nextcloud cron job “cron.php” every 15 minutes.
Could that harm preview files? Maybe if it gets aborted after reaching some PHP limit?
Is there a workaround in this case if there isn’t a solution?
For instance disabling that cron job?
How can I manually re-create the missing preview files?
Steps to replicate it:
Not really any because it happens on a random basis.
The output of your Nextcloud log in Admin > Logging:
nothing appropriate
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
?php
$CONFIG = array (
'instanceid' => 'XXX',
'passwordsalt' => 'XXX',
'secret' => 'XXX',
'trusted_domains' =>
array (
0 => 'XXX',
),
/**
* 'datadirectory' => '/var/www/vhosts/some-dirs-in-between/nextcloud/data',
*/
'datadirectory' => ((php_sapi_name() != 'cli') ? '/var/www/vhosts/XXX' : '').'XXX/nextcloud/data',
'dbtype' => 'mysql',
'version' => '20.0.14.2',
'overwrite.cli.url' => 'https://XXX/nextcloud',
'dbname' => 'nextcloud',
'dbhost' => '<my IP>:3306',
'dbport' => '',
'dbtableprefix' => 'oc_',
'dbuser' => 'cloud',
'dbpassword' => 'XXX',
'installed' => true,
The output of your Apache/nginx/system log in /var/log/____:
nothing of relevance
Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.
{"reqId":"5rR3UTM9dYOZfLDXQ2WQ",
"level":3,
"time":"2022-08-21T06:45:03+00:00",
"remoteAddr":"xx.xx.xx.xx",
"user":"Me",
"app":"PHP",
"method":"GET",
"url":"/nextcloud/index.php/core/preview?fileId=5352&x=1920&y=1080&a=true",
"message":{"Exception":"Error",
"Message":"file_put_contents(/var/www/vhosts/some-dirs-in-between/nextcloud/data/appdata_oc20caq6lkb1/preview/7/2/6/1/9/2/5/5352/1920-1440-max.jpg): failed to open stream: No such file or directory at /var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/Files/Storage/Local.php#283",
"Code":0,
"Trace":[{"function":"onError",
"class":"OC\\Log\\ErrorHandler",
"type":"::",
"args":[2,
"file_put_contents(/var/www/vhosts/some-dirs-in-between/nextcloud/data/appdata_oc20caq6lkb1/preview/7/2/6/1/9/2/5/5352/1920-1440-max.jpg): failed to open stream: No such file or directory",
"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/Files/Storage/Local.php",
283,
{"path":"appdata_oc20caq6lkb1/preview/7/2/6/1/9/2/5/5352/1920-1440-max.jpg",
"data":null,
"oldMask":18
}
]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/Files/Storage/Local.php",
"line":283,
"function":"file_put_contents",
"args":["/var/www/vhosts/some-dirs-in-between/nextcloud/data/appdata_oc20caq6lkb1/preview/7/2/6/1/9/2/5/5352/1920-1440-max.jpg",
null
]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php",
"line":257,
"function":"file_put_contents",
"class":"OC\\Files\\Storage\\Local",
"type":"->",
"args":["appdata_oc20caq6lkb1/preview/7/2/6/1/9/2/5/5352/1920-1440-max.jpg",
null
]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/Files/View.php",
"line":1165,
"function":"file_put_contents",
"class":"OC\\Files\\Storage\\Wrapper\\Wrapper",
"type":"->",
"args":["appdata_oc20caq6lkb1/preview/7/2/6/1/9/2/5/5352/1920-1440-max.jpg",
null
]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/Files/View.php",
"line":702,
"function":"basicOperation",
"class":"OC\\Files\\View",
"type":"->",
"args":["file_put_contents",
"/appdata_oc20caq6lkb1/preview/7/2/6/1/9/2/5/5352/1920-1440-max.jpg",
["create","write"],
null
]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/Files/Node/Folder.php",
"line":200,
"function":"file_put_contents",
"class":"OC\\Files\\View",
"type":"->",
"args":["/appdata_oc20caq6lkb1/preview/7/2/6/1/9/2/5/5352/1920-1440-max.jpg",
null
]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/Files/SimpleFS/NewSimpleFile.php",
"line":133,
"function":"newFile",
"class":"OC\\Files\\Node\\Folder",
"type":"->",
"args":["1920-1440-max.jpg",
null]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/Preview/Generator.php",
"line":262,
"function":"putContent",
"class":"OC\\Files\\SimpleFS\\NewSimpleFile",
"type":"->",
"args":[null]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/Preview/Generator.php",
"line":140,
"function":"getMaxPreview",
"class":"OC\\Preview\\Generator",
"type":"->",
"args":[{"__class__":"OC\\Files\\SimpleFS\\SimpleFolder"},
{"__class__":"OC\\Files\\SimpleFS\\NewSimpleFile"},
"image/jpeg",
""
]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/Preview/Generator.php",
"line":109,
"function":"generatePreviews",
"class":"OC\\Preview\\Generator",
"type":"->",
"args":[{"__class__":"OC\\Files\\Node\\File"},
[{"width":1920,"height":1080,"crop":false,"mode":"fill"}],
"image/jpeg"
]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/PreviewManager.php",
"line":190,
"function":"getPreview",
"class":"OC\\Preview\\Generator",
"type":"->",
"args":[{"__class__":"OC\\Files\\Node\\File"},1920,1080,false,"fill",null]},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/core/Controller/PreviewController.php",
"line":170,
"function":"getPreview",
"class":"OC\\PreviewManager",
"type":"->",
"args":[{"__class__":"OC\\Files\\Node\\File"},
1920,1080,false,"fill"
]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/core/Controller/PreviewController.php",
"line":143,
"function":"fetchPreview",
"class":"OC\\Core\\Controller\\PreviewController",
"type":"->",
"args":[{"__class__":"OC\\Files\\Node\\File"},
1920,1080,true,true,"fill"
]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/AppFramework/Http/Dispatcher.php",
"line":169,
"function":"getPreviewByFileId",
"class":"OC\\Core\\Controller\\PreviewController",
"type":"->",
"args":[5352,1920,1080,true,true,"fill"]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/AppFramework/Http/Dispatcher.php",
"line":100,
"function":"executeController",
"class":"OC\\AppFramework\\Http\\Dispatcher",
"type":"->",
"args":[{"__class__":"OC\\Core\\Controller\\PreviewController"},"getPreviewByFileId"]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/AppFramework/App.php",
"line":152,
"function":"dispatch",
"class":"OC\\AppFramework\\Http\\Dispatcher",
"type":"->",
"args":[{"__class__":"OC\\Core\\Controller\\PreviewController"},"getPreviewByFileId"]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/Route/Router.php",
"line":309,
"function":"main",
"class":"OC\\AppFramework\\App",
"type":"::",
"args":["OC\\Core\\Controller\\PreviewController",
"getPreviewByFileId",
{"__class__":"OC\\AppFramework\\DependencyInjection\\DIContainer"},
{"_route":"core.Preview.getPreviewByFileId"}
]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/base.php",
"line":1008,
"function":"match",
"class":"OC\\Route\\Router",
"type":"->",
"args":["/core/preview"]
},
{"file":"/var/www/vhosts/some-dirs-in-between/nextcloud/index.php",
"line":37,
"function":"handleRequest",
"class":"OC",
"type":"::",
"args":[]
}
],
"File":"/var/www/vhosts/some-dirs-in-between/nextcloud/lib/private/Log/ErrorHandler.php",
"Line":91,
"CustomMessage":"--"
},
"userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0",
"version":"20.0.14.2"
}