边缘安全加速平台 EO

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文档中心边缘安全加速平台 EO 源站配置负载均衡相关参考负载均衡相关概念

负载均衡相关概念

最近更新时间：2024-03-08 15:55:52

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本文将为您介绍负载均衡中涉及到的相关概念。
注意：
EdgeOne 负载均衡功能在内测中，如您需要使用请 联系我们。
负载均衡实例
负载均衡实例是一个虚拟的概念，它由源站组和健康检查策略组成。一个负载均衡实例中可以按照优先级顺序配置至多十个源站组以及一个健康检查策略，负载均衡实例将会根据探测结果以及配置的流量调度策略智能地分配业务流量。
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源站组
源站组是负载均衡中最小的源站配置单元，可以添加单个或多个源站。添加多源站时可以配置权重来调整流量负载，详情请参见 源站组操作指引。
健康检查策略
健康检查策略是由探测方式和健康判定条件组成。当前支持 ICMP Ping、HTTP/HTTPS、TCP 和 UDP 这四种探测方式，详情请参见 健康检查详解。
流量调度策略
流量调度策略只有当健康检查策略启用时才会生效，当前支持按“优先级顺序进行故障转移”策略，即根据探测结果，屏蔽故障源站，按照源站组的优先级顺序，将流量路由到健康源站。
请求重试策略
负载均衡可以在业务正常请求至某个源站出现请求失败时，根据请求重试策略将该请求调度至其它源站再次重试，以减少因网络问题、源站故障等原因导致的业务请求失败。详情请参见 请求重试策略介绍。

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