Database connections
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The maximum number of connections in the Spring Boot HikariCP database connection pool is defined in spring.datasource.hikari.maximum-pool-size and defaults to 10 (spring.datasource.hikari.maximum-pool-size=10). To customize, add spring.datasource.hikari.maximum-pool-size to conf/application.properties. For larger installations, increase this value proportionally to the number of concurrent users. One connection for every five simultaneous users is a conservative ratio.