How to replace default hikari cp to tomcat pool on spring boot 2.0

Question

I have migrated spring boot application to 2.0 and found out some problems with hikari connection pool. When I am fetching database data this results to hikari cp timeout ie. co

Answer 1

I have found out the solution. This can be resolved in pom.xml by modifying like that:

    org.springframework.boot
    spring-boot-starter-jdbc
    
        
            com.zaxxer
            HikariCP
        
    



    org.apache.tomcat
    tomcat-jdbc

However the hikari problem was probably with default small size of connection pool. So this problem could be resolved also with this change but not verified by myself. Just note for others. Something like that:

spring.datasource.hikari.connection-timeout=60000
spring.datasource.hikari.maximum-pool-size=5