Server Restart Sequence
From AgileApps Support Wiki
Revision as of 02:23, 24 January 2014 by imported>Aeric
When an installation employs memcached, it is important to follow this sequence when restarting servers:
- Log in as root.
Common:Stop the Messaging Server
- Stop all application Servers
- Stop all memcached servers
- Start all memcached servers
- Start all application servers
Common:Start the Messaging Server
- Considerations
-
- Stopping application servers ensures that they aren't adding entries to the cache.
- Stopping memcached makes sure that the cache is flushed.
- Those two steps can occur in either order. It is the next two for which order is critical:
- Restarting memcached first makes sure that a clean copy of the cache is available.
- When the application servers come up, they use the clean cache.