Difference between revisions of "Server Restart Sequence"
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:* Stopping memcached makes sure that the cache is flushed. | :* 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: | :* Those two steps can occur in either order. It is the next two for which order is critical: | ||
::* Restarting memcached | ::* Restarting memcached first makes sure that a clean copy of the cache is available when the application server comes up. | ||
Latest revision as of 22:20, 22 June 2011
Server Restart Sequence
When an installation employs memcached, it is important to follow this sequence when restarting servers:
- Stop all application Servers
- Stop all memcached servers
- Start all memcached servers
- Start all application servers
- 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 server comes up.