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add warnings re cache warning and php memcached module

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This commit is contained in:
Carla Schroder
2015-10-02 09:02:38 -07:00
parent ee4b224d93
commit b1de3828fb
1 changed files with 10 additions and 2 deletions
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12
admin_manual/configuration_server/caching_configuration.rst
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@@ -7,8 +7,12 @@ caching, where frequently-requested objects are stored in memory for faster
retrieval. There are two types of caches to use: a PHP opcode cache, which is
commonly called *opcache*, and data caching for your Web server. If you do not
install and enable a local memcache you will see a warning on your ownCloud
admin page. (A memcache is not required and you may ignore the warning if you
prefer.)
admin page. A memcache is not required and you may ignore the warning if you
prefer.
.. note:: If you enable only a distributed cache in
your ``config.php`` (``memcache.distributed``) and not a
local cache (``memcache.local``) you will still see the cache warning.
A PHP opcache stores compiled PHP scripts so they don't need to be re-compiled
every time they are called. PHP bundles the Zend OPcache in core since version
@@ -107,6 +111,10 @@ with :doc:`Transactional File Locking <../configuration_files/files_locking_tran
store locks, and data can disappear from the cache at any time (Redis is
the best for this).
.. note:: Be sure to install the **memcached** PHP module, and not memcache, as
in the following examples. ownCloud supports only the **memcached** PHP
module.
Setting up Memcached is easy. On Debian/Ubuntu/Mint install ``memcached`` and
``php5-memcached``. The installer will automatically start ``memcached`` and
configure it to launch at startup.