HikariCP init

        System.out.println("hikariCP initializing...");

        HikariConfig config = new HikariConfig();
        config.setJdbcUrl("jdbc:postgresql://xxx.us-west-2.rds.amazonaws.com:5432/" +
            "epf_db?useUnicode=yes&characterEncoding=utf-8");
        config.setUsername("user_ro");
        config.setPassword("XXXXXXPWDXXXXXX");
        config.setInitializationFailFast(true);
        config.setMaximumPoolSize(20);
        config.setConnectionTestQuery("SELECT 1");
        HikariDataSource ds = new HikariDataSource(config);

        System.out.println("hikariCP initialized");