I have a Drupal (pressflow 6.22) website and I am using memcache as a caching level for my website/server. Sometimes some node (articles) that has been published on my website shows empty content when browsed (Specially with IE).

When I do below on the server that has memcache

$ telnet 11211
Connected to
Escape character is '^]'.

and refresh the page using the same browser, it is displayed properly. Has anybody faced the same issue?


Have you installed and configured drupal with the module for memcache - http://drupal.org/project/memcache ?

There is also a handbook page that will be able to help you http://drupal.org/node/1131458

  • sure i did... but honestly memcached caused a lot of troubles for me. and this is one of them :(. it reduces my average server load exponentially which is great. but in the same time it caused a lot of problems – Alaa Jul 10 '11 at 20:31

We recently went through a through troubleshooting of this issue.

We found that the fields table should not be served from Memcached.

$conf['cache_class_cache_field'] = 'DrupalDatabaseCache';

Reference: https://www.drupal.org/node/1679344#comment-7895709


@Walter Jenner: memcached should be flushed from time to another, so i have fixed it by applying the following crontabs

0 */1 * * * echo "flush_all" | nc 11211
1 */1 * * * ps aux |grep flush_all | grep -v grep |awk '{print $2}' |xargs kill -9
1 */1 * * * ps aux |grep "nc 11211" | grep -v grep |awk '{print $2}' |xargs kill -9

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