mchcz commented on issue #809: Web server failed to start. Port 8080 was already in use. URL: https://github.com/apache/incubator-dolphinscheduler/issues/809#issuecomment-532573140 1.请确认application.properties中8181端口是否被占用，如果没有请看第二点。 2.请确认nginx配置文件中，和调度系统映射的端口是否被占用，如下图所示：  If the error is still reported, please provide more error information.
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