blackfox1983 commented on a change in pull request #4261:
URL: https://github.com/apache/incubator-doris/pull/4261#discussion_r465685916
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File path: docs/zh-CN/administrator-guide/http-actions/fe/health-action.md
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@@ -0,0 +1,80 @@
+---
+{
+ "title": "Health Action",
+ "language": "zh-CN"
+}
+---
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+# Health Action
+
+## Request
+
+`GET /api/health`
+
+## Description
+
+返回集群当前存活的 BE 节点数和宕机的 BE 节点数。
+
+## Path parameters
+
+无
+
+## Query parameters
+
+无
+
+## Request body
+
+无
+
+## Response
+
+```
+{
+ "msg": "success",
+ "code": 0,
+ "data": {
+ "online_backend_num": 10,
+ "total_backend_num": 10
+ },
+ "count": 0
+}
+```
+
+## Examples
+
+1. 获取集群节点健康信息
+
+ ```
+ GET /api/health
+
+ Response:
+ {
+ "msg": "success",
+ "code": 0,
+ "data": {
+ "online_backend_num": 10,
Review comment:
这个地方是否可以加上be的ip？
这样可以知道哪个be出问题了。
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