closing inbound before receiving peer's close_notify
다음과 같은 오류는,
Mon Aug 09 14:08:43 KST 2021 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
Mon Aug 09 14:08:43 KST 2021 WARN: Caught while disconnecting...
** BEGIN NESTED EXCEPTION **
javax.net.ssl.SSLException
MESSAGE: closing inbound before receiving peer's close_notify
STACKTRACE:
javax.net.ssl.SSLException: closing inbound before receiving peer's close_notify
at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:133)
...[생략]...
at java.base/java.lang.Thread.run(Thread.java:834)
** END NESTED EXCEPTION **
메시지에도 잘 설명이 되어 있지만, 인증서를 명시할만한 상황이 아니라면 그냥 useSSL=false를 연결 문자열에 추가하면 됩니다.
<property name="url" value="jdbc:mysql://localhost:3306/test?serverTimezone=Asia/Seoul&useSSL=false" />
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