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问题描述：
挖掘引擎连接失败，Http status code:406
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WARN util.HttpConnectUtils.execute:363 - Request url:http://10.10.32.106:10010/smartbi/smartbix/api/monitor/token
Http status code:406
Http response:{"message":"连接被拒绝: 无法连接至:localhost:18900，请检查该链接地址以及该服务的运行情况","type":"smartbix.SmartbiXException","code":"CONNECTION_REFUSED","stackTrace":null,"stackAppendInfo":null,"weak":false}
2022-03-25 10:22:49.807 [67] ERROR util.SmartbiTokenHttpAuthenticator.checkApplyResult:219 - Failed to apply for a token,(statusCode:406,content:{"message":"连接被拒绝: 无法连接至:localhost:18900，请检查该链接地址以及该服务的运行情况","type":"smartbix.SmartbiXException","code":"CONNECTION_REFUSED","stackTrace":null,"stackAppendInfo":null,"weak":false})
2022-03-25 10:22:49.809 [67] ERROR context.ServiceAppContext.run:102 - Can't connect to the engine. Request url:http://10.10.32.106:10010/smartbi/smartbix/api/deployment/services
smartbix.datamining.engine.exception.HttpClientException: Can't connect to the engine. Request url:http://10.10.32.106:10010/smartbi/smartbix/api/deployment/services
at smartbix.datamining.engine.util.SmartbiTokenHttpAuthenticator.checkApplyResult(SmartbiTokenHttpAuthenticator.java:233) ~[EngineCore-1.0.jar:?]
at smartbix.datamining.engine.util.SmartbiTokenHttpAuthenticator.executeAuthenticate(SmartbiTokenHttpAuthenticator.java:163) ~[EngineCore-1.0.jar:?]
at smartbix.datamining.engine.util.SmartbiTokenHttpAuthenticator.authenticate(SmartbiTokenHttpAuthenticator.java:76) ~[EngineCore-1.0.jar:?]
at smartbix.datamining.engine.util.HttpConnectUtils.createHttpClient(HttpConnectU
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问题原因：
对应的URL地址无法访问成功
排查思路：
1、协议https
2、IP是否正常
3、端口是否正常被监听
4、服务的启动日志
解决方案：
1、服务地址是https
