cache Archives - Page 2 of 3 - Magenaut

Stale cache handling with a persistent object cache

August 4, 2022 by Magenaut

Lets say you are doing an update_option() and because of some temporary network glitches updating the value in Redis/Memcached fails and you end up with a stale cache for a specific option key. The core APIs does not seem to care about the response from wp_cache_set() and they move forward with the rest of the process. Then the subsequent updates could delete or revert that option value in DB and that could have major consequences for the app depending on what that option value is used for. How do you handle this? How is this handled in large-scale WP setups? Anything that can be improved in core?

Versioning @import of parent theme’s style.css

August 4, 2022August 3, 2022 by Magenaut

Update my child theme every time the parent theme is updated to change a version string in style.css (e.g. @import url('../twentythirteen/style.css?ver=NEW_VERSION');). This creates an unnecessary and annoying link between parent theme version and child.

How does object caching work?

August 4, 2022August 3, 2022 by Magenaut

I’m looking for a definitive answer here. When object caching is enabled, where do options and transients end up living?

Explanation of update_post_(meta/term)_cache

August 4, 2022August 3, 2022 by Magenaut

I was reading over some best practices from 10up and they mention setting these two flags to false in a WP_Query ( depending on what you’re querying ):

Cache remote (HTTP) request with Transients API

August 4, 2022August 3, 2022 by Magenaut

I am trying to use get_transient() method in my WordPress, I have read the document and seems like I am doing what has been described in the docs.

How can I clear oEmbed caches for YouTube on posts as they are loaded

August 4, 2022August 3, 2022 by Magenaut

I have a site with tons of posts hundreds/thousands of which have YouTube videos embedded. Most use the default youtube_url format and the actual embed code is stored in the oEmbed postmeta fields.

What is the best caching option for WordPress multi-site on non-shared hosting?

August 4, 2022August 3, 2022 by Magenaut

What caching plugin configuration do you recommend and why under the following assumptions:

How well does WordPress scale?

August 4, 2022August 3, 2022 by Magenaut

With the new WordPress and it’s new features, it seems like WordPress is capable of much more than a simple blog engine. But how well does WordPress scale being used by say 10k -> 100k users per day?

What are the best practices for using a caching plugin on a shared host?

August 3, 2022August 2, 2022 by Magenaut

I’ve launched quite a big site the other day and I’d like to incorporate a caching plugin. The setup is single-site with some Buddypress features mixed in (for user registration, maps with gpress, having a profile) running on a shared host.

How do you avoid caching during development?

August 3, 2022August 2, 2022 by Magenaut

Is there a simple way to prevent all caching when testing the appearance of changes to the site? I use WP Super Cache. I can delete its cache using the option provided, delete the cache for my browser, and still some changes to CSS or widgets do not refresh. I try other work-arounds like switching browsers or computers, but there must be a more stream-lined workflow where I can ensure I’m viewing the changes I made and not some cached earlier format? What’s the best solution for this?