Could not open JDBC Connection for transaction; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30001ms.
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Could not open JDBC Connection for transaction; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Could not create connection to database server.
Could not get JDBC Connection異常問題
Error: Could not open client transport with JDBC Uri: jdbc:hive2://localhost:10000: java.net.ConnectException: 拒絕連接 (Connection refused) (state=08S01,code=0)
org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection;
org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection 原因
org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection總結
hiveserver2連接出錯如下：Error: Could not open client transport with JDBC Uri: jdbc:hive2://hadoop01:10000: java.net.ConnectException: Connection refused (Connection refused) (state=08S01,code=0)
CDbConnection failed to open the DB connection: could not find driver錯誤的處理
Could not get JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException:
JDBC中的事務-Transaction