19.0.0 released Nov 08, 2023
File storage

Vely provides a file directory that you can use for any general purpose, including for storing temporary-files. This directory is also used for automatic upload of files from clients. It provides a two-tier directory system, with sub-directories automatically created to spread the files for faster access.

Files in Vely file directory are located in the sub-directories of:
/var/lib/vv/<app_name>/app/file

If you wish to place this directory in another physical location, see vv.

You can create files here by means of uniq-file, where a new unique file is created - with the file name made available to you. This directory is also used for uploading of files from clients (such as web browsers or mobile device cameras) - the uploading is handled automatically by Vely (see input-param).

In general, a number of sub-directories is created within the file directory that contain files, with (currently) the maximum of 40,000 directories with unlimited files per each directory (so if you had 50,000 files per each directory, then you could store a total of about 2 billion files). This scheme also allows for faster access to file nodes due to relatively low number of sub-directories and files randomly spread per each such sub-directory. The random spreading of files across subdirectories is done automatically.

Do not rename file names or sub-directory names stored under file directory.
See also
Files
close-file  
copy-file  
delete-file  
file-position  
file-storage  
file-uploading  
lock-file  
open-file  
read-file  
read-line  
rename-file  
stat-file  
temporary-file  
uniq-file  
unlock-file  
write-file    
See all
documentation


You are free to copy, redistribute and adapt this web page (even commercially), as long as you give credit and provide a dofollow link back to this page - see full license at CC-BY-4.0. Copyright (c) 2019-2023 Dasoftver LLC. Vely and elephant logo are trademarks of Dasoftver LLC. The software and information on this web site are provided "AS IS" and without any warranties or guarantees of any kind. Icons from table-icons.io copyright PaweĊ‚ Kuna, licensed under MIT license.