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口岸AR出现系统异常提示
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![[Pasted image 20250724094126.png]]
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### 排查过程
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1. 排查日志后发现数据库连接打满
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![[Pasted image 20250724094105.png]]
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2. 查看hertzbeat数据库监控显示从4点开始出现连接未释放状态，直到6点到7点之间超过最大500连接限制
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![[Pasted image 20250724094256.png]]
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3. 查看日志从4点半开始出现socket超时，但不是数据库类型的异常
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![[Pasted image 20250724094428.png]]
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4. 查看hertzbeat 应用监控发现从4点起线程并未出现递增或者较大波动情况
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![[Pasted image 20250724095212.png]]
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5. 说明不是socket或者线程导致的问题，继续往下查看日志
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车牌识别未执行的情况下，线程池出现了频繁申请连接的情况
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![[Pasted image 20250724101641.png]]
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DeviceStatusCheckerJob和VehicleOvertimeStayCheckerJob执行前后都出现了申请连接的情况
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![[Pasted image 20250724102510.png]]
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![[Pasted image 20250724102744.png]]
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6. 直到7点50分第一次出现连接打满情况
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![[Pasted image 20250724103638.png]]
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