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tone down fault injection docs

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Shriram Rajagopalan 2017-04-24 23:20:54 -04:00
parent aa3a19c478
commit c0e22abd4d
1 changed files with 6 additions and 11 deletions
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17
_docs/concepts/fault-injection.md
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@ -20,17 +20,12 @@ incompatible/restrictive timeouts across service calls) could result in
continued unavailability of critical services in the application, resulting
in poor user experience.
**Systematic fault injection:** Istio advocates a systematic approach to
testing the failure recovery of the application as a whole as opposed to a
chaotic model. Specifically, Istio enables protocol-specific fault
injection into the network, instead of killing pods, delaying or corrupting
packets at TCP layer. Our rationale is that the failures observed by the
application layer are the same regardless of network level failures, and
that more meaningful failures can be injected at the application layer
(e.g., HTTP error codes) to exercise the resilience of an
application. Secondly, a systematic approach to fault injection allows
developers to quickly triage the root cause of failures as opposed to a
chaotic fault injection model.
Istio enables protocol-specific fault injection into the network, instead
of killing pods, delaying or corrupting packets at TCP layer. Our rationale
is that the failures observed by the application layer are the same
regardless of network level failures, and that more meaningful failures can
be injected at the application layer (e.g., HTTP error codes) to exercise
the resilience of an application.
Operators can configure faults to be injected into requests that match
specific criteria. Operators can further restrict the percentage of