memcache

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gopichandmb's picture

PHP Accelator for Drupal7

We are exploring few options to setup a site for drupal 7 , we have few combinations like

Nginx + varnish + php7 + php-fpm + memcache + APCU + zend opcode

Apache + varnish + php5 + HHVM + memcache

we need some suggestions on this

This is a media publishing website has more content and it can have 300 - 600 page visits for an hour and has 25000 articles.

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fengtan's picture

php7 + memcache: stable?

We'd like to run our Drupal 7 sites with php7. The only trouble we have so far has to do with the PECL memcache(d) extensions - no stable release supporting php7 has been published yet:

<

ul>

  • The PECL/memcached package is being discussed in this issue where people are actively waiting for a stable release to move to php7 (some of them ended up moving to Redis because it was taking too long)
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    DamienMcKenna's picture

    Seeking reviews for an improvement to Memcache's time-based expiration/invalidation logic

    Hello there.

    While working on a large site a coworker discovered that there was a problem with the Memcache module's cache clearing and time-based expiration & invalidation.

    My coworker devised a very simple scenario that tested what the Memcache module was doing:

    <

    ol>

  • Store some data in the cache via cache_set($data, $cid).
  • Verify what data is contained in the cache using cache_get($cid).
  • Clear the entire cache bin via cache_clear_all('*', $bin, TRUE).
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    JMeyer's picture

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    nublaii's picture

    Backend caching forms?

    We have a fairly normal multi-server setup: haproxy -> varnish -> drupal

    We have drupal using a single memcache instance for all the caches except cache_form (we had 2 for redundancy, but since we're trying to debug this problem we're running it on a single instance).

    All the urls that contain '/admin' are excluded from varnish (even though the cookie does that too, we just wanted to make sure this was not the problem).

    So what happens is: a lot of the backend forms get cached.

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    Anonymous'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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    Anonymous's picture

    Advices for tuning my server for better performance and scalability

    I am working on a web application which will primarily be used by authenticated users. The web application imports records from CSV files using the Feeds module, MongoDB was chosen to store this data because it is much faster to do the writes rather than in MySQL. The application is importing thousands of records every day really fast. The records are referenced to the users and when they log in, they can consult their information. The application is also used as an API for the mobile app.

    I have a 17gb AWS EC2 Instance as the server.

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    technicalknockout's picture

    Memcache performance

    Just recently setup new relic for a site and was surprised to see how much of the server's response time is being spent on memcache reads/writes. On a sample response, the breakdown is something like this:

    PHP: 312 ms
    Database: 143 ms
    Memcache: 201 ms
    External Web Service: 17 ms

    Am I correct in thinking the memcache time is way too high? Or is this similar to other people's experience?

    Thanks in advance for your thoughts.

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    antoniomanco's picture

    Ayuda con Memcache, lo instalé pero....

    Hola, necesito ayuda para configurar Memcache, recientemente renuncié a usar Varnish porque era bien complicado. Bueno, resumo mi problema:

    Se instaló Memcache en el servidor (lo hizo mi proveedor), luego procedí a configurar settings.php y le agregué este código: $conf['cache_backends'][] =
    '/sites/all/modules/memcache/memcache.inc';
    $conf['cache_default_class'] = 'MemCacheDrupal';
    $conf['memcache_key_prefix'] = 'something_unique';

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    cjgarcia1965's picture

    Site Performance Suggestions

    I'm trying to speed up my website and need some suggestions about what things go together and which typically give you the most performance increase. I need to lower CPU usage and caching seems like the way to go. We really need to decrease CPU because our host (a pretty well respected and expensive VPS) is being overloaded with only 2-3 simultaneous users. I've run Yslow and the developers are working on making the recommended changes there.

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