Uploading large files
- the URL of the media file to upload
- a text file with the first revision content
- the name of the user account for this first revision and upload
MediaWiki currently doesn't support files greater than 4 GB (as size is stored as a 32 bits unsigned integer) while our swift backend storage is limited to 5 Gb. See phab:T191804 and phab:T191802 for discussion to extend this limit respectively to 5 GB and beyond.
Step 1: download files
Download the files to mwmaint1002 (or if there's not enough space, deploy1001).
At this stage, it could be pertinent to check the hash of the file if known.
Requestors are advised to provide direct link to the to-upload-file. However, ocasionally, they do not do that, and use a public cloud service instead, which usually don't provide direct download links (like Google Drive).
From Google Drive, it is possible to download a file using it's unique ID via en:rclone:
urbanecm@titanium /nas/urbanecm/wmf-rehosting $ rclone -P backend copyid <config>: '<fileid>' '<filename>'
- <config> refers to the name of the rclone config entry (you can use
rclone configto see/edit the config entries)
- <fileid> is the ID of the file at Google (for https://drive.google.com/file/d/1K9QrMXyhPqlvc-vQRjVmT8YrbgYjfelC/view, the ID is
- <filename> is the name you want to store the file under
Since rclone is not installed at production servers, this requires copying the file first to a temporary location first and then transfering to the maintenance server, however, it does not mean downloading the file to administrator's own laptop (which might have capacity or connection speed issues).
Step 2: import image to Commons
Server-side uploads run much faster because of minimal network overhead, and as a result can cause extra strain on the job queue, especially videos which require transcoding. It's recommended to add some delay in between each upload with the
--sleep parameter. Because videos have various factors (resolution, fps, length) that would affect how long transcodes would take, it might be worth uploading one video, seeing how long the median transcode takes, and then sleeping for that length to avoid queuing up a large number of transcodes.
mwscript importImages.php --wiki=commonswiki --sleep=SECONDS --comment-ext=txt --user=USERNAME /tmp/uploads