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| -rw-r--r-- | doc/source/configuration.rst | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/source/configuration.rst b/doc/source/configuration.rst index 917e8659..042b9fe9 100644 --- a/doc/source/configuration.rst +++ b/doc/source/configuration.rst @@ -45,6 +45,18 @@ Stop the process using ``Control-C``. If you have not already configured Keystone, it may not start as expected. +Memcached and System Time +========================= + +If using `memcached`_ with Keystone - e.g. using the memcache token +driver or the ``auth_token`` middleware - ensure that the system time +of memcached hosts is set to UTC. Memcached uses the host's system +time in determining whether a key has expired, whereas Keystone sets +key expiry in UTC. The timezone used by Keystone and memcached must +match if key expiry is to behave as expected. + +.. _`memcached`: http://memcached.org/ + Configuration Files =================== |