March 2019
Intermediate to advanced
636 pages
27h 50m
English
The availability criterion is closely related to reliability, but it is more about ensuring system uptime with high probability, or as a corollary, minimizing the probability of system downtime. As with reliability, detection of failed nodes and ensuring adequate failover is the key to ensuring that your application will remain operational, even when one or more components fails. Determination of the desired availability level, allocating an adequate number of resources in the form of redundant and self-correcting components, and testing in a production environment are necessary to ensure that you get the desired performance from your application.
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