cache

Sequencing.com's picture

Implementing Couchbase vs Redis for Drupal 7 site with horizontal scaling

We're ll the process of moving our Drupal 7 online app platform site to a major cloud provider that will include horizontal scaling (multiple nodes for Frontend as well as multiple nodes for MariaDB). We're now considering the optimal solution to scale caching.

We are contemplating substituting standard memcache server with either internal Couchbase memcache server or Redis. The goal is to optimize performance of the site.

We are also contemplating upgrading from php v5.4 to php7.

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swigle's picture

Personalisation / Custom caching

Hi all,

I want to build a module that handels caching and is able to deal with altering pieces of content based on some variables.

For a client we've developed a D7 site a couple of years back. The site is high-traffic and serves a lot of visitors but only anonymous users. The site uses views, panels and panels everywhere for it's layout, general pagecaching for cache and all media comes from a CDN. Everything works great!

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Göran's picture

DP 7 - Ny sida visas ibland inte - fluch cache krävs - Cache problem?

Hej,
Håller på med en tvåspråkig Dp 7.28 dev site (som är ganska omfattande) och har sedan en tid stora problem med att vissa länkar inte aktiverar en ny page-view, dvs sidan står kvar på den sida som visades varifrån klick på länken sker.

Det krävs att man "flush:ar cachen" manuellt..! för att sidan ska komma upp/visas/synas, trots att den korrekta adressen syns i URL:en, dvs sidan svarar inte på URL:en utan hänger kvar på den sida jag står på när jag klickar på vissa länkar.
Det finns inget samband med om man är inloggad som user 1 eller oinloggad.

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steveworley's picture

Cache optimisation for admin menu

http://engineering.flitech.net/admin-menu-performance/

Wanted to post this here as Admin Menu is a great module! It allows your to provide quick and easy navigation to the most used parts of your Drupal administration experience. It provides cache clearing and searching and an array of other nice to haves that don't ship with the default Drupal administration menu. However due to the way that the menu needs to be kept up-to-date this module does not scale very well and can be a prime contributor to slow cache rebuilds and memory issues for larger Drupal sites.

Thanks,
Steve

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trainingcity's picture

Found this link useful for cache discussion

I found this discussion useful while exploring cache and cron issues for my site, real Life English.

http://tomroelandts.com/articles/how-to-ensure-that-visitors-always-see-...

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brad.curnow's picture

Handling large spike of un-cachable requests.

Hi all.

I've been tasked with building a high performance, high capacity website for a client and so have been reading up on best practices. I'm getting familiar with the cache based approach for both authenticated and anon. users, APC, varnish etc - however I'm finding it difficult to find best practices regarding non-cachable requests.

-- EXAMPLE --

Suppose my website were to give away 500 free donuts to the first 500 people who correctly answer a multiple choice question. This figure would be stored in a field called "QTY" on the "freebie" content type.

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HyperGlide's picture

Anyone Using "entitycache" on the BOA Sites

Hello.

Looking for other comments related to the use of:

https://drupal.org/project/entitycache

with the current BOA 2.0.9 setup.

Do you use it along with Boost? Core Caching? Redris?
Performance benefits? Server impact, etc.

Thanks,
Hg

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pixelpiloten's picture

Modul som "cachar" tweets

Hallå där Drupalsverige, jag har under några semester-dagar suttit och gjort en modul som sparar tweets från ett twitter-konto i drupals db vid varje cron.

Tanken bakom denna modul uppkom när jag satt och byggt en liknande modul för en kunds räkning och twitter stängde ner sitt gamla API och modulen helt slutade fungera, den hämtade då tweets direkt från API't varje gång den specifika sidan visades.

Denna modul använder twitters nya API och hämtar som sagt tweets vid varje cron och sparar i Drupals databas och listar dessa i ett block som man kan aktivera.

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jimyhuang's picture

Cache overview in Drupal

Last weekend, I've share a slide for Drupalcamp Taipei in Taiwan.
Although I the presentation speak in Chinese, most of the slides written in English. I think this may help some people to overview cache mechanism in Drupal.

Welcome for any suggestion, comment or correct.

Thanks for this great group, when I struggle on strange performance issue, some posts give me a light when I in the dark.

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TipiT's picture

Should I still use entitycache in Drupal 7 projects?

I have been using entitycache [1] without problems in D7. However I have not really measured lately does it really improve the performance and is there some issues? And what is the state at the moment about entitycache going to core [2] in D7 or D8?

What I am asking is:

  1. Should I use entitycache in projects of any kind? (Like using APC cache ALWAYS because it does not matter is there logged in users or not.)

  2. Has anyone measured the impact lately? (If it is in core it does not really make sense using it, right?)

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