envoyproxy/envoy
GitHub で見るreduce health check rate if there is active succeeding traffic
Open
#9,351 opened on 2019年12月13日
area/perfarea/service discoveryhelp wanted
Repository metrics
- Stars
- (27,997 stars)
- PR merge metrics
- (平均マージ 8d) (30d で 378 merged PRs)
説明
This came up from a conversation I think with @snowp at KubeCon/EnvoyCon: we should be able to optionally lower the active health check rate if we are receiving a sufficient amount of passive traffic. As long as the upstream is able to send x-envoy-immediate-health-check-fail (as an upstream Envoy would do), draining should still be possible even in the passive case.
This would potentially mitigate some HC traffic explosion without having to resort to centralized HC.