에러가 발생했습니다.

org.mybatis.spring.MyBatisSystemException

nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30001ms. ### The error may exist in file [/opt/tomcat/apache-tomcat-8.5.31/webapps/cak_arch/WEB-INF/classes/mapper/util/UtilMapper.xml] ### The error may involve cak.arch.common.controller.resetPackage ### The error occurred while executing a query ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30001ms.

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