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Hendel's avatar
Hendel
Icon for Nimbostratus rankNimbostratus
Jan 31, 2023

Insert header when item added to ramcache

Haven't been in here for a looong time... :-7 Trying to store a header value received from pool member in a new header as that item is added to the ramcache (so it'll be present when that item is su...
application delivery
Hendel's avatar
Hendel
Icon for Nimbostratus rankNimbostratus

I'm able to log CACHE::headers when I retrieve objects from the cache, it's just that they only come out with all of their original headers/values as sent by the pool member, not the ones I was trying to insert and/or modify as they went in to the cache.

John_Alam's avatar
John_Alam
Icon for Employee rankEmployee
Feb 08, 2023

i used this version and was able to change the headers Cache-Control.  I was also able to insert headers.  No dynamic values though.

 

when CACHE_UPDATE {
    CACHE::header insert X-LTM-Cached "test"
    CACHE::header replace Cache-Control "private"
    log local0. "Cache update- path:$path cache: [CACHE::headers]"
}

 

But you have to invalidate the cache before every expected change of behavior.  You do that from the CLI with this command:  

 

tmsh delete /ltm profile ramcache optimized-caching

 

 and reload page twice.  First reload will not have the cached version.

HTH