High Availability ha, high performance

Developed every day, it is inevitable to listen to some technical forums. They are all professional words. If you have never heard of them, it is a stranger. Record them.

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High Availability:

1. Ha

2. Single-node failure is transparent to users, that is, it has no impact and is still in normal use.

Extension:

Vertical Scaling: become Superman (only improving the performance of a single computer) (improving CPU and storage ....)

Horizontal scaling: Great Unity (a large number of clusters) ------ database clusters, file system clusters, Server Clusters, etc...

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High Availability ha, high performance