November 2018
Intermediate to advanced
390 pages
10h 8m
English
book
Practical Site Reliability Engineering
by Pethuru Raj Chelliah, Shreyash Naithani, Shailender Singh
Content preview from Practical Site Reliability Engineering
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Half-open state
We should have proper monitoring in place for the circuit breaker to know whether the backend microservice has recovered. The circuit breaker makes trial calls to a backend microservice periodically to check the status of that service. This state is known as the half-open state. It will remain in this half-open state unless all requests return successfully from the backend microservice. Then the circuit will retain its normal status, which is the closed state:
As shown in the preceding diagram, the Client request failed due to the unavailability of the backend microservice (Supplier Microservice), and the Circuit Breaker
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.