docs: update proxy-mirror

apache · Nov 11, 2022 · eb4aa6a · eb4aa6a
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diff --git a/docs/en/latest/plugins/proxy-mirror.md b/docs/en/latest/plugins/proxy-mirror.md
@@ -41,6 +41,7 @@ The response returned by the mirror request is ignored.
 |--------------|--------|----------|---------|--------------|---------------------------------------------------------------------------------------------------------------------------|
 | host         | string | True     |         |              | Address of the mirror service. It needs to contain the scheme but without the path. For example, `http://127.0.0.1:9797`. |
 | path         | string | False    |         |              | Path of the mirror request. If unspecified, current path will be used.                                                    |
+| path_concat_mode | string | False   |   replace     | ["replace", "prefix"]       | If the path of a mirror request is specified, set the concatenation mode of request paths. The `replace` mode will directly use `path` as the path of the mirror request. The `prefix` mode will use the `path` + `source request URI` as the path to the mirror request.  |
 | sample_ratio | number | False    | 1       | [0.00001, 1] | Ratio of the requests that will be mirrored.                                                                              |
 
 You can customize the proxy timeouts for the mirrored sub-requests by configuring the `plugin_attr` key in your configuration file (`conf/config.yaml`). This can be used for mirroring traffic to a slow backend.

diff --git a/docs/zh/latest/plugins/proxy-mirror.md b/docs/zh/latest/plugins/proxy-mirror.md
@@ -42,6 +42,7 @@ description: 本文介绍了 Apache APISIX proxy-mirror 插件的相关操作，
 | ---- | ------ | ------ | ------ | ------ | ------------------------------------------------------------------------------------------------------- |
 | host | string | 是   |        |        | 指定镜像服务的地址，地址中需要包含 `schema`（`http` 或 `https`），但不能包含 `path` 部分。例如 `http://127.0.0.1:9797`。 |
 | path | string | 否   |        |        | 指定镜像请求的路径。如果不指定，则默认会使用当前路径。 |
+| path_concat_mode | string | 否   |   replace     | ["replace", "prefix"]       | 当指定镜像请求的路径时,设置请求路径的拼接模式。`replace`将会直接使用path作为镜像请求的路径。`prefix`将会使用`path`+ `来源请求URI`作为镜像请求的路径。  |
 | sample_ratio | number | 否    | 1       |  [0.00001, 1]     | 镜像请求的采样率。当设置为 `1` 时为全采样。 |
 
 ## 启用插件