hikaricp

I am trying to use HikariCP connection pool. I was able to get it to work and get a connection that I could use. I am not sure what is the best approach for returning the connection to the pool. I have the following questions: Should I close the connection when I am done, rely on idleTimeout and maxLifetime settings or is there another call that I can use so as not to hog the connections from the pool? If I close the connections (instead of returning to the pool), would that not result in additional connection objects being created to meet the requirements of the connection pool size? Looking

I am using hikari cp with spring boot app which has more that 1000 concurrent users. I have set the max pool size- spring.datasource.hikari.maximum-pool-size=300 When i look at the processlist of mysql using show processlist; It shows max 300 which is equal to the pool size.It never increases than max pool.Is this intened? I thought pool size means connections maintained so that the connections can be reused when future requests to the database are required but when need comes more connections can be made. Also when I am removing the max pool config ,I immediately get- HikariPool-0 -

I'm learning to use HikariCP (i'm new in java) and i found a wrapper but i think it's not thread safety, well the instance of the singleton is thread safety but not the method getConnection(). The class is this: public class HikariCPWrapper{ private static final HikariCPWrapper INSTANCE; private HikariDataSource ds; static { INSTANCE = new HikariCPWrapper(); } private HikariCPWrapper(){ HikariConfig config = new HikariConfig(); //config.set... //... ds = new HikariDataSource(config); } public static HikariCPWrapper getInstance () { return INSTANCE; } public Connection getConnection() throws

please tell me. How can I configure the "Hikari connection pooling + Hibernate 4.3.8 + Spring Data JPA configuration"? Here is my configuration, but for some reason I am sure that this configuration is not correct. Because the the console does not appear anything like the "connetction pooling". On the Internet I can not find the tutorial for the beginner. Thanks. <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" p:dataSource-ref="dataSource" p:packagesToScan="com.history" p:jpaVendorAdapter-ref="jpaVendorAdapter"> <property name=

I have written following properties in my configuration files I am using Log4j in my application When I am running a project. I am getting following message.does that mean connection pooling is configured in my project? if not then how it will be? INFO: internal.ConnectionProviderInitiator - HHH000130: Instantiating explicit connection provider: com.zaxxer.hikari.hibernate.HikariConnectionProvider I have referred following link also link here Datasource settings hibernate.datasource.driver-class-name=com.mysql.jdbc.Driver hibernate.datasource.url=jdbc:mysql://localhost:3306/mydb hibernate

i want to use Hikari CP in my Spring 4.0.3 context but seems i am missing something. My bean configuration looks like: <bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource"> <constructor-arg> <bean class="com.zaxxer.hikari.HikariConfig"> <constructor-arg> <props> <prop key="dataSource.driverClassName">${database.driver}</prop> <prop key="dataSource.jdbcUrl">${database.database.jdbc.url}</prop> <prop key="dataSource.port">${database.port}</prop> <prop key="dataSource.databaseName">${database.name}</prop> <prop key="dataSource.user">${database.user}</prop> <prop key="dataSource

I am trying to deploye two WAR files (app1.war and app2.war) on the same tomcat7 instance. I am getting this error : Unable to register MBean [HikariDataSource (HikariPool-0)] with key 'dataSource'; nested exception is javax.management.InstanceAlreadyExistsException: com.zaxxer.hikari:name=dataSource,type=HikariDataSource I don't have this error if I have only one application deployed on tomcat. Is there a way to solve this issue? in spring boot, jmx bean is loaded at run time and it scans your application. If two data sources are found, its going to throw javax.management

I have a small Java application for testing purposes. I have moved to hikari recently. What I notice is that I keep getting this error. java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30000ms. java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30000ms. at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:602) at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:195) at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:145)