[GitHub] [apisix] spacewander commented on a change in pull request #4105: docs(health-check): more notes

[GitBox <gi...@apache.org>]

spacewander commented on a change in pull request #4105:
URL: https://github.com/apache/apisix/pull/4105#discussion_r618281782



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File path: docs/en/latest/health-check.md
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@@ -26,8 +26,13 @@ title: Health Check
 Health Check of APISIX is based on [lua-resty-healthcheck](https://github.com/Kong/lua-resty-healthcheck),
 you can use it for upstream.
 
-Note that we only start the health check when the upstream is hit by a request.
+Note:
+
+* We only start the health check when the upstream is hit by a request.
 There won't be any health check if an upstream is configured but isn't in used.
+* If there is not healthy node can be chosen, we will continue to access the upstream.
+* We won't start the health check when the upstream only has one node, as we will access
+it whether this unique node is healthy or not.

Review comment:
       `whether ... or not` is equal to `no matter`.




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