The cache management has been rewritten, using cache router and memcached ideas and try to put the things one step further in the core. 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:. Drupal use a lot of caches at different levels but all of them are by default stored in the database. 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. To use the well known memcached daemon. TXT in FileCache directory for configuration details. The first question is « where should I put each separate cache bin or each cache table for short?
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For now we’ll just have a look at the cache tables problems. Keep in mind that you should never make a server swap. 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. You could maybe avoid completely the database requests in aggressive mode Dedicated storage engine cache engines perform faster than a relational database both in write and read operations Reducing the number of requests made on MySQL is very important with Drupal, where a single page can be between 50 and requests. Today it’s still a sandboxed module, no official release.
The default situation Take your Drupal Database and check what are the drupxl tables used, here I’ll use a quite druoal default Drupal installation on Drupal6: So by definition it’s quite hard to perform some fine tunning on the MySQL server if this table is not removed. And for each bin you can specify which storage backend will be used. Take your Drupal Database and check what drhpal the cache tables used, here I’ll use a quite basic default Drupal installation on Drupal There is no magic rules, the best tool will depend on your cache usage and on used modules.
But other backends could be written. Cache backends with Drupal7 Now comes Drupal7.
So now you may ask « why don’t we use Cache engines for everything? To use the well known memcached daemon. You would get bigger numbers on a big website.
Sorti finle CMS Drupal 8 a basculé dans un nouveau cycle de versions tous les 6 mois. Cache tables are small and not heavily used. In case of full cache overflow the cache is completely wiped out, so do not use that for long persistency. Some modules provides lock alternatives which are faster dgupal the Redis module 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.
But The use of a new Module called Session Proxy should be the definitive solution, allowing usage of a cache backend or usage of PHP native sessions which can be set to memcache. 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.
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. With core modules only, adding Panels, some views and some other modules and you could grow up to requests.
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TXT in FileCache directory for configuration details. The cache management has been rewritten, using cache router and memcached ideas and try to put the things one step further in the core. Use the right tool for the right thing.
To be honest statistics tracking can also make a lot of write requests, but this is yet another problem The Cache Backend crupal is not 77.26 of the session storage at least by default.
This module, drupa, maintained by pounardis a backport of Drupal7 cache engine separating backends for Drupal6.
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I said before cache engines can be faster in both write and read operations. Let’s look at a complete configuration, for Drupal6 the cache backport module would require these lines: Or do you want some configuration details? 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. So it’s a replacement for Cache Router where you can reuse the 7.6 parts of Drupal7 cache backends in a Drupal6 website.
More on this module when released like how to manage session locks, how to configure the cache backend for sessions, etc. For now we’ll just have a look at the cache tables problems. Follow me also on drupap.
And of course some existing modules could help you doing that. But this is still a good question. Soon enough you will ask yourself « Could I use some smarter solutions like Memcache for the cache storage? Module maintained drupl pounarda Makina Corpus worker.