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 · Issue #1580 ...
![Transactional REQUIRES_NEW considered harmful — Spring/Java transaction handling pitfalls | by Paul Klingelhuber | Medium Transactional REQUIRES_NEW considered harmful — Spring/Java transaction handling pitfalls | by Paul Klingelhuber | Medium](https://miro.medium.com/v2/resize:fit:1200/1*udbh7DT4Jz5Qfs4td_dd7Q.png)
Transactional REQUIRES_NEW considered harmful — Spring/Java transaction handling pitfalls | by Paul Klingelhuber | Medium
![postgresql - HikariCP: Why does connection leak and unleak result in "connection attempt timed out" for new DB connection? - Stack Overflow postgresql - HikariCP: Why does connection leak and unleak result in "connection attempt timed out" for new DB connection? - Stack Overflow](https://user-images.githubusercontent.com/423065/123304864-4fafab00-d4d4-11eb-9aac-f7cb46536c43.png)