We coudl also talk about the lock API in Drupal lock. And One of the good points of this module is that it provides a centralized documentation on several cache backends which is spread on the different modules for Drupal7. Or do you want some configuration details? So it’s a replacement for Cache Router where you can reuse the cache parts of Drupal7 cache backends in a Drupal6 website. But this is still a good question. Cache tables are small and not heavily used.

Nom: drupal 7.26
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Some modules provides lock alternatives which are faster like the Redis module Drupal use a lot of caches at different levels but all of them are by default stored in the database. Let’s look at a complete configuration, for Drupal6 the cache backport module would require these lines: So by definition it’s quite hard to perform some fine tunning on the MySQL server if this table is not removed. This is always almost provided in the module documentation but we will use srupal cache backport module documentation as an example. And the answer is that a relational database provides more services, it can for example provide a better persitency, or manage better simultaneous writes, or allow handling relationship between objects.

Let’s look at a complete configuration, for Drupal6 the cache backport module would require these lines:. You could also try the filecache backend, with a modern linux kernel often used files will get mapped into memory buffers and you may get good results.

And now for Drupal7 or Drupal6 we would have of course it depends of the bins available on your installation, check the table created in MySQL to see what bin are requested by the modules:.

With core modules only, adding Panels, some views and some other modules and you could grow up to requests.

drupal 7.26

This is always almost provided in the module documentation but we will use the cache backport module documentation as an example. The first question is « where should I put drypal separate cache bin or each cache table for short? This module, again maintained by pounardis a backport of Drupal7 cache engine separating backends for Drupal6.

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drupal 7.26

Or do you want some configuration details? But anyway, the real problem in term of performance here is not on the size of caches or the size of the indexes, but on the number of read and write queries running on theses tables.

The cache management has been rewritten, using cache router and memcached ideas and try to put the things one step further in the core. The only thing we need know is a documentation on how to configure these. More on this module when released like how to manage session locks, how to configure the cache backend for sessions, etc.

You may want to keep some bins in the database, but you should test the memcached backend for most bins. But this is not always true, depends a lot on your Drupal cache usages I said before cache engines can be faster in both write and read operations.

Available cache backends are: So now you may ask « why don’t we use Cache engines for everything?

Installer Drupal sur debian avec drush :: Le-linuxienlinux

And the answer is that a relational database provides more services, it can for example provide a better persitency, or manage better simultaneous writes, or allow handling relationship between objects.

There is also a MongoDB module providing a mongodb cache backend beta2that I did not drjpal yet, powered by Damien Tournoud. But other backends could be written. Keep in mind that you should never make durpal server swap. You may wonder why it is smart to use something which is not the database to perform the caching storage? Memcache module is providing a tool for that, Cache Router module was announcing it as well.

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For all the others bins you could apply a different policy.

Traduction DRUPAL 7.26 en français

Drupal use a lot of caches at different levels but all of them are by default stored in the database. Today it’s still a sandboxed module, no official release. Cache tables are small and not heavily used. The default situation Take your Drupal Database and check what are the cache tables used, here I’ll use a quite basic default Drupal installation on Drupal6: If you have several Apache servers you will have one APC cache per server, but it’s not a big one, be careful and part of the available memory space is occupied by the opcode.

But you will need to allow some memory for these new backends, maybe some of the memory given previously to MySQl or Apache. Follow me also on regilero. In case of full cache overflow the cache dripal completely wiped out, so do not use that for long persistency.

Separate cache Backends with Drupal6 and Drupal7 — Makina Corpus

Cache backends with Drupal7 Now comes Drupal7. We’ve just been removing write and read requests from MySQL. But The use of a new Module called Session Proxy should be the definitive solution, allowing usage of a cache backend or drupa, of PHP native sessions which can be set to memcache.

drupal 7.26

Let’s look at a complete configuration, for Drupal6 the cache backport module would require these lines: They will love the APC cache backend. And for each bin you can specify which storage drupzl will be used.