change: the timeout of healthcheck should be number type.

apisix/schema_def.lua

@@ -75,7 +75,7 @@ local health_checker = {
                     enum = {"http", "https", "tcp"},
                     default = "http"
                 },
-                timeout = {type = "integer", default = 1},
+                timeout = {type = "number", default = 1},
                 concurrency = {type = "integer", default = 10},
                 host = host_def,
                 http_path = {type = "string", default = "/"},

doc/health-check.md

@@ -45,6 +45,7 @@ curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f13
         "retries": 2,
         "checks": {
             "active": {
+                "timeout": 5,
                 "http_path": "/status",
                 "host": "foo.com",
                 "healthy": {
@@ -78,6 +79,8 @@ contains: `active` or `passive`.
 
 * `active`: To enable active health checks, you need to specify the configuration items under `checks.active` in the Upstream object configuration.
 
+  * `active.timeout`: Socket timeout for active checks (in seconds), support decimals. For example `1.01` means `1010` milliseconds, `2` means `2000` milliseconds.
+
   * `active.http_path`: The HTTP GET request path used to detect if the upstream is healthy.
   * `active.host`: The HTTP request host used to detect if the upstream is healthy.
 

doc/zh-cn/health-check.md

@@ -46,6 +46,7 @@ curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f13
         "retries": 2,
         "checks": {
             "active": {
+                "timeout": 5,
                 "http_path": "/status",
                 "host": "foo.com",
                 "healthy": {
@@ -78,6 +79,8 @@ curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f13
 
 * `active`: 要启动探活健康检查，需要在upstream配置中的 `checks.active` 添加如下配置项。
 
+    * `active.timeout`: 主动健康检查 socket 超时时间（秒为单位），支持小数点。比如 `1.01` 代表 `1010` 毫秒，`2` 代表 `2000` 毫秒。
+
     * `active.http_path`: 用于发现upstream节点健康可用的HTTP GET请求路径。
     * `active.host`: 用于发现upstream节点健康可用的HTTP请求主机名。
 

t/admin/health-check.t

@@ -476,3 +476,45 @@ GET /t
 {"error_msg":"invalid configuration: property \"upstream\" validation failed: property \"checks\" validation failed: object matches none of the requireds: [\"active\"] or [\"active\",\"passive\"]"}
 --- no_error_log
 [error]
+
+
+
+=== TEST 13: number type timeout
+--- config
+    location /t {
+        content_by_lua_block {
+            local t = require("lib.test_admin").test
+
+            req_data.upstream.checks = json.decode([[{
+                "active": {
+                    "http_path": "/status",
+                    "host": "foo.com",
+                    "timeout": 1.01,
+                    "healthy": {
+                        "interval": 2,
+                        "successes": 1
+                    },
+                    "unhealthy": {
+                        "interval": 1,
+                        "http_failures": 2
+                    }
+                }
+            }]])
+            exp_data.node.value.upstream.checks = req_data.upstream.checks
+
+            local code, body = t('/apisix/admin/routes/1',
+                ngx.HTTP_PUT,
+                req_data,
+                exp_data
+            )
+
+            ngx.status = code
+            ngx.say(body)
+        }
+    }
+--- request
+GET /t
+--- response_body
+passed
+--- no_error_log
+[error]