I would like to suggest there be a different method to initialise the Gallery file previews.
I have a few thousand images spread across a few hundred directories, and it’s impossible to wait so long for Gallery to initialise the previews each time I wish to go into the files. I’ve tried to wait overnight for the “spinning wheel” to stop so I can actually go into the directories, but even that doesn’t work… the spinning wheel doesn’t stop. I did create a small test directory at the top of the file tree with only a few images, and Gallery works fine. But for a deep directory list, it either hangs or is impossibly slow.
This limitation (large image collections will take a long time to load) was mentioned in the documentation, so I am not reporting a “bug”, but rather a request for improved features in future releases.
Thus, I suggest one or more changes (or perhaps make them options) in Gallery to improve handing of large image collections:
– prevent preview images for directories; allow only for the images themselves
– allow “on demand” initialising of a directory; that is, only create previews for the current directory and do not descend further to create previews until the next directory is clicked
– improve the caching so that previews are not newly initialised each time the file list is accessed
– suggest alternative php settings to facilitate the handling of many files.
Thanks for any suggestions how to handle this problem.
Nextcloud 10.0.1, Gallery 15.0.0, Ubuntu 16.04.3, mysql 5.0.12, php 7.0.8
Normally, yes. But I don’t upload photos in the usual way. I have attached an external drive with a few thousand images and need an efficient way to produce the thumbs. In my case, I need a way to generate the thumbnails “behind the scenes” or perhaps “on demand”.
This seems plausible. I do not know how new files on your HD are discovered by the files app, but maybe the discover could be the point of time where you create such thumbnails!? This could also decrease the amount of thumbnails to be created each time.
I use the “External storage support” app, which works very well for me to access my files in File view. Accessing the external mount is transparent… only the folder icon of the new drive is somewhat different in Files view. Everything else feels the same so far as I can tell (although I haven’t explored all the options).
My problem is that after I attach the drive, I cannot use Gallery view at all… it hangs, or at least it appears to, and I cannot get past the root folder as the spinning wheel I’m sure is continuing to try (or failing) to create the thumbnails (there’s no feedback, so I don’t know what it’s really doing… I can’t find anything in the logs about it). I’ve let it continue with the “spinning circle” for hours, and still it hasn’t finished its work. Thus, I don’t think the moment of drive attachment would be the right point to generate the thumbs, at least not in the same manner as now.
This is why, at least in my case, I’d prefer to have the option of a separate or background or an “on demand” thumbnail creation. “Separate” would be something like the “create-thumbnails” feature mentioned in my earlier notes here. “Background” means it could create the thumbs behind the scenes, but still lets me go into Gallery view for those other folders which already have thumbs created, without interference by the thumbnail generation process. By “on demand” I mean the possibility to generate the thumbs only when the specific parent folder is clicked on. In my case, that would seldom involve more than 40 or 50 images, in contrast to having to bulk generate the other several thousand at one go.
The other thing which just occurred to me is that for all the images I would need to make thumbs for, after they are created the cache would probably be enormous. I’m running mysql which works well at the moment, but I imagine the database and php configurations would need to be considered, too, for handling such large numbers of images and their thumbnails. An additional consideration would be what happens if the external drive is ejected or unmounted. For me, it’s not an issue, since I am “permanently” mounting an separate partition on the server drive, and will not really ever think about ejecting it. But I’m sure other folks might attach a “real” separate hard drive.
Thanks for following up on this matter. It’s hardly a critical thing for the operation of Nextcloud/Owncloud, but solving it would facilitate the use of Gallery for those of us with mass quantities of images.