images tag no change

[zijiren 0]

After modifying the media image, requesting /emby/Items/id/Images/Primary again does not change the request parameter tag, which is very unfriendly to the cache
I have seen my test and found that the tag is obtained by requesting /emby/Shows/NextUp, but the tag returned by this request will not change after the image is updated

[Abobader 3464]

Hello zijiren,

** This is an auto reply **

Please wait for someone from staff support or our members to reply to you.

It's recommended to provide more info, as it explain in this thread:

Thank you.

Emby Team

[Luke 42080]

Hi, did you run a library scan after modifying the image?

[zijiren 0]

 

I just modified the image without rescanning the media library, but I think the tag should change so that the cache or cdn can be refreshed as a new image

[Luke 42080]

It does, but first you have to scan the library so that the server becomes aware that the file has changed.

[zijiren 0]

How to automatically change the tag after modifying the picture, can the new version implement the second function? I think the need to manually rescan the media library is redundant

[visproduction 315]

Rescanning the entire library every time you make a single tag change would slow down the server for everyone using it. This would not be an efficient design to update immediately all the cache.  You only notice that the image hasn't change because you check it immediately.  The change will get processed after a short amount of time.

[Luke 42080]

2 hours ago, visproduction said:

Rescanning the entire library every time you make a single tag change would slow down the server for everyone using it. This would not be an efficient design to update immediately all the cache.  You only notice that the image hasn't change because you check it immediately.  The change will get processed after a short amount of time.

Just scanning the parent folder will do the trick as well.

[Luke 42080]

9 hours ago, zijiren said:

How to automatically change the tag after modifying the picture, can the new version implement the second function? I think the need to manually rescan the media library is redundant

If you have the realtime monitor enabled, and the realtime monitor supports your file system, then it will be automatic (within a minute or two).

[zijiren 0]

I modified the picture through the webpage, that is, the picture modified by requesting the api.
If the picture is modified through the api, it should be possible to execute some kind of callback function to make the tag change immediately.
The monitoring function of the file system should only be used if the source files of the directory are directly modified.
Is this a design flaw?

[Luke 42080]

On 6/25/2023 at 5:10 AM, zijiren said:

I modified the picture through the webpage, that is, the picture modified by requesting the api.
If the picture is modified through the api, it should be possible to execute some kind of callback function to make the tag change immediately.
The monitoring function of the file system should only be used if the source files of the directory are directly modified.
Is this a design flaw?

Hi, yes this already happens automatically. Did the date modified timestamp of the image change? That's what needs to happen.

[zijiren 0]

I don't know if the timestamp changes, but I noticed that the etag changes, but the cdn or cache doesn't check every time if the etag changes.
The end result is that after the image is modified in the browser, the tag parameter of the requested image will not change. I think the tag parameter should be changed immediately to refresh the cache.

[Luke 42080]

It does. Maybe the cdn is caching the json response?

[zijiren 0]

I don't think so, because I tested the origin site request API: /Shows/15130/Seasons
The ImageTags value of the returned json result is still unchanged

[zijiren 0]

Directly access the web page on port 8096 without going through CDN and cache, and the tag returned by modifying the picture is still unchanged

[Luke 42080]

On 7/2/2023 at 12:04 AM, zijiren said:

Directly access the web page on port 8096 without going through CDN and cache, and the tag returned by modifying the picture is still unchanged

屏幕录制2023-07-02 12.00.29.mov

That json value you're pointing to is the primary image tag of the Season. You changed the image of the series, not the season.

[zijiren 0]

But the picture really hasn't changed

Edited July 4, 2023 by zijiren

[Luke 42080]

8 hours ago, zijiren said:

But the picture really hasn't changed

What does that mean?