openstack/openstack-manuals
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openstack-manuals/doc/install-guide/source/environment-memcached.rst
chen-xing 3cd9383617 [install] Note the memcached service runs on the controller node 
backport:mitaka

Change-Id: I5ac25b01bd77191de603f16eef8ae0628fbc3957
Closes-Bug: #1588619
2016-06-04 12:45:31 +08:00

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Memcached

The Identity service authentication mechanism for services uses Memcached to cache tokens. The memcached service typically runs on the controller node. For production deployments, we recommend enabling a combination of firewalling, authentication, and encryption to secure it.

Install and configure components

  1. Install the packages:

    ubuntu

    # apt-get install memcached python-memcache

    rdo

    # yum install memcached python-memcached

    obs

    # zypper install memcached python-python-memcached

ubuntu

  1. Edit the /etc/memcached.conf file and configure the service to use the management IP address of the controller node to enable access by other nodes via the management network:

    -l 10.0.0.11

    Note

    Change the existing line with -l 127.0.0.1.

Finalize installation

ubuntu or debian

  • Restart the Memcached service:

    # service memcached restart

rdo or obs

  • Start the Memcached service and configure it to start when the system boots:

    # systemctl enable memcached.service
# systemctl start memcached.service