hikaricp

I switched to HikariCP from Oracle default datasource. There is a piece of code where I pass custom Oracle type to a stored parameter, and cast java.sql.Connection to oracle.jdbc.OracleConnection . try(OracleConnection connection = (OracleConnection) dbConnect.getConnection()) { try(CallableStatement callableStatement = connection.prepareCall("{? = call pkg_applications.add_application(?,?,?)}")) { callableStatement.registerOutParameter(1, Types.VARCHAR); callableStatement.setString(2, form.getPolicyNumber()); callableStatement.setString(3, form.getPolicyStart()); Object[][] uploads = new

We are refactoring the persistence layer of a Java application from JDBC Template to JPA/Hibernate. I am profiling the SQL statements being issued to the database and I see "SHOW WARNINGS" is issued many, many times. According to JProfiler the "SHOW WARNINGS" is accounting for a considerable amount of 'inherent time'. What could cause SHOW WARNINGS to be issued so frequently? This SHOW WARNINGS was NOT previously issued when using Jdbc Template. Below is the part of our stack relevant to persistence. The only change here is the introduction of JPA/Hibernate. JPA / Hibernate: 4.3.6 MySQL driver

Hikari CP Version : 2.7.4 This is actually not an issue but some doubts. a) maxLifetime : retires the connection after 30 mins. Will it also create a new connection automatically at the time of killing it or it waits for a new request and then creates a new connectios? considering pool has more than minIdle. b) idleTimeout : it will drop after 10 mins of inactivity? but 10mins is too high. is it ok if i mark it as 10s(10 is min as seen from code) as otherwise there will always be connections higher than min-connections? ALso when does the connetion is mark as idle? The Hikari housekeeper runs

I have a SpringBoot app, I was making some performance test in the controller, and I realized that whatever is the first query I put the controller, It take ages compare to the others... (ths DB is a remote connection, but I can't change this) long t1 = System.nanoTime(); menuPriceSummaryService.findAllVegan().stream(); long t2 = System.nanoTime(); long elapsedTimeInSeconds = (t2 - t1) / 1000000000; System.out.println("elapsedTimeInSeconds1 -> " + elapsedTimeInSeconds); t1 = System.nanoTime(); menuPriceSummaryService.findAllVegan(); t2 = System.nanoTime(); elapsedTimeInSeconds = (t2 - t1) /

一、查看当前正在使用的连接池。 通过下面的代码，可以查看当前正在使用的连接池： import org.junit.Test; import org.junit.runner.RunWith; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.test.context.junit4.SpringRunner; import javax.sql.DataSource; @RunWith(SpringRunner.class) @SpringBootTest public class DataSourceTest { private static final Logger logger = LoggerFactory.getLogger(DataSourceTest.class); @Autowired private DataSource dataSource; @Test public void dataSourceInfo

I've started a project using Hibernate 5 and a MySQL database. Prior to this project, I've been using Hibernate 4, PostgreSQL and C3P0 connection pool. Now, I want to use HikariCP as it seems really promising, with Hibernate 5 . Here it's my IVY configuration part for hibernate: <?xml version="1.0"?> <!DOCTYPE ivy-module [ <!ENTITY vaadin.version "7.5.5"> <!ENTITY highcharts.version "1.1"> <!ENTITY vaadin.charts.version "3.0.0-alpha5"> <!ENTITY hibernate.version "5.0.1.Final"> <!ENTITY mysql.version "5.1.36"> <!ENTITY log4j.version "2.3"> <!ENTITY apache.poi.version "3.12"> <!ENTITY apache