排查数据库的正在执行的占用的慢sql语句，可以查看生产的执行sql语句时间

1. 生产报错异常：

org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is java.sql.SQLException: master - Interrupted during connection acquisition

2.在数据库执行查询生产正在执行的time比较大的sql

SELECT * FROM INFORMATION_SCHEMA.PROCESSLIST WHERE info IS NOT NULL AND TIME > 0 ORDER BY TIME DESC;

3. 暂时的解决问题，可以kill 掉 相关的sql

kill ID