HikariPool-1 – Connection is not available, request timed out after 30002ms.
After some SQL queries, the system is unable to get any connection from the HikariPool and prompts the following error message HikariPool-1 – Connection is not available, request timed out after 30002ms. Tested with HikariCP 3.3.1 mysql-connector-java 5.1.47 Java 8 1. Solution 1.1 Enable the debug logs for com.zaxxer.hikari, it will print out many useful …