Caching Image Renditions in Dispatcher

[#1]

Hi,

i am facing a problem like not able to cache image renditions. Added a dispatcher for the author for performance improvement.

In Dispatcher cache i have given statlevel as 4

and the cache rule i have given to cache all the files under a project for example "react_aem_spa".

and also under invalidate rule

When i am trying to access http://localhost/content/dam/react_aem_spa/hiking_4.jpg the image is getting cached but when i am trying to access the rendition say http://localhost/content/dam/react_aem_spa/hiking_4.jpg/jcr:content/renditions/cq5dam.thumbnail.140....  they are not getting cached.

Are there any configurations specifically to do so as to cache the renditions as well.

And also when i am trying to edit the tags in damadmin console for the image they are not being autoinvalidated. 

Can anyone let me know what has to be done.

Regards,

Sree

[#2 · Accepted solution]

I found a community article that may be helpful:

https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/dispatcher-image-caching-i...

[#3]

Hi @sreekalyani 
You can try the following approach for Image rendition caching.
http://aempodcast.com/2017/assets/asset-rendition-caching-problem-solution/#.XsevrhMzbxU

Thanks,
Himanshu Singhal

[#4]

Hi @sreekalyani,

I'm no Dispatcher expert but I think the issue is with your glob expression.

If we take the two paths you provided:

/content/dam/react_aem_spa/hiking_4.jpg 
/content/dam/react_aem_spa/hiking_4.jpg/jcr:content/renditions/cq5dam.thumbnail.140.100.png

The following glob only matches the first asset:

/content/dam/react_aem_spa/*.*

Instead I think you should be using this glob which matches both assets:

/content/dam/react_aem_spa/**

I'm a regex man and I've always disliked globs, which is why I use https://globster.xyz/ to double-check my globs 😉 Have a look!

Matches one:

Matches all: