Use cache-invalidation for questions related to purging content from a cache based on a state change in the cached object or a canonical object that it shadows
I'd like to go slightly deeper into Smarty caching, so I have some simple questions...
To manipulate cache invalidation I want to know what directory Smarty is storing it's cache in. For example, all cached pages related to user_id=123 I want to…
We are running our Magento store on AWS and we have autoscaling setup behind an ELB. At any time, we have at least 2 web servers running. Each web-server instance has it's own Varnish Cache server in front of it handling incoming requests.
Now, the…
I understand the concept on Memcache but i have a doubt.
Lets say:
I have a table 'users' with the three columns:
userid
username
and password.
Lets say the query is $query="select * from users". For the first time, the query gets executed and…
When developing your project in Django with READ-COMITTED level, I think cache.delete can lead to race condition and django's signals won't help much.
T1 T2
cache.delete
cache.get (not found)
read…
I am trying to execute this riscv assembly code but I keep getting the error :Invalid language element
This is the code part that error happend. (last row)
main:
addi sp,sp,-32
sw ra,28(sp)
sw s0,24(sp)
…
Trying to invalidate an AWS cloudfront path that contains a tilde ~ character results in an invalid argument error. A tilde is a valid URL character, and invoking things like encodeURI or encodeURIComponent against strings that contain it do not…
Service1 -> Our Wrapper API service -> Redis
Service2 -> Our Wrapper API service -> Redis
Client side caching with Redis is very useful. Redis provides server push-based cache invalidation for client side cache in 2 modes:
Default mode: Redis…
Looking at Arm as an example, it has hardware support for automatic cache
invalidation as explained in this URL:
https://developer.arm.com/documentation/den0024/a/Multi-core-processors/Multi-core-cache-coherency-within-a-cluster
It also has software…
Suppose that a cache line with variable X is simultaneously uploaded to L1d of CPU0 and L1d of CPU1. After changing the value of X from CPU0, when CPU1's L1d cache line is invalidated, Is it impossible for CPU1 to copy the variable X from CPU0's L1d…
I am looking to speed up the loading and processing of large binary files using code I have written. The code works however it is slow. I want to make improvements, but whenever I load the files a second time I don't get the true loading speed as…
I´m running into a problem where using the @CacheInvalidate annotation is not enough anymore.
One method has to erase two different caches, one of them uses two of the given arguments and the other uses all three.
@CacheInvalidate(cacheName =…
An excerpt from Wiki on Cache invalidation -
"Cache invalidation is a process in a computer system whereby entries in a cache are replaced or removed." But, why on earth do we need to invalidate Cache?
I can think of only possible scenario -
If for…
I see a lot of answers about forcing cache reload recommending a solution that incorporates the HTML page itself.
But when you have a situation where your old website was written as an index.html homepage, and now you swap that with something new,…
