Re: [myexperiment-hackers] Problem with /home caching

[Danius Michaelides]

On Thu, 16 Oct 2008, Jiten Bhagat wrote:

> Hi all
>
> See attached screenshot....
>
> Tom's caching work has improved performance of the "Home" page substantially, 
> but there is an issue we need to fix - the time information (eg: "6 hours 
> ago") gets stale and can cause confusion (I've now seen that "6 hours ago" 
> message two days in a row) and won't get updated till the fragment for that 
> box gets invalidated (by someone uploading or editing something).

> Any ideas?

a) dont cache
b) dont write the time info
c) calculate the time info on the client (although I guess the list would
   still get out of date)
d) make the list dynamic (like annoucements on the frontpage)
e) make the cache observers invalidate the correct user caches

I guess some of this will change with Sergey's news code. I'll make
option (a) live in the meantime. Having the improved auth code would also
help here.

> PS: this is why I had suggested a while back that timed expiry caching was 
> the least disruptive option.

It'd still give incorrect text to the user. If you recall the timed expiry
was a temporary solution until it was done properly.

Danius