What is connection pooling in WebSphere?

What is connection pooling in WebSphere?

When servants start the same JDBC data source or J2C connection factory configuration, WebSphere Application Server (base) implements a corresponding physical connection pool for every servant. Therefore all of these connection pools can potentially request connections from the same backend resource, at the same time.

What is JNDI in WebSphere Application Server?

Observe the conventions of the Java™ Naming and Directory Interface (JNDI) service in WebSphere® Application Server when you create connection factory JNDI names. The Java Naming and Directory Interface (JNDI) provides a common interface that is used to access the various naming and directory services.

What is Orb thread pool in Websphere?

The ORB thread pool contains a task queue and a pool of threads. It is normal for a large application’s Max Pool Size to be ten times the size of the current task queue. The Application Server uses the ORB thread pool to: Execute every ORB request. Trim EJB pools and caches.

Where is JNDI in WebSphere?

To Determine the JNDI Port to Specify In the WebSphere administration console, navigate to Servers > Application Servers > Your_Server > Ports.

Where is JNDI name in WebSphere?

To view this administrative console page, click Applications > Application Types > WebSphere enterprise applications > application > EJB JNDI names.

When should you not use connection pooling?

You reuse a prior database connection, in a new context to avoid the cost of setting up a new database connection for each request. The primary reason to avoid using database connections is that you’re application’s approach to solving problems isn’t structured to accommodate a database connection pool.

How do I know what size connection pool to get?

For optimal performance, use a pool with eight to 16 connections per node. For example, if you have four nodes configured, then the steady-pool size must be set to 32 and the maximum pool size must be 64. Adjust the Idle Timeout and Pool Resize Quantity values based on monitoring statistics.

What is Hikari maximum pool size?

maximum-pool-size= 10 #maximum pool size spring.

Why is my JDBC connection not working in WebSphere Application Server?

This section will help you to troubleshoot problems that occur when using a data source defined in WebSphere Application Server to establish a JDBC connection to a database. JDBC connection problems usually occur at runtime when an application attempts to connect to the database and perform SQL queries.

Why is my JNDI file not showing up?

Yes, the root cause of the problem is that the JNDI lookup of the data source by the application fails. Check the data source JNDI name and ensure that it is bound to the JNDI namespace when the application server starts.

Why does WebSphere Application Server purge the connection pool?

For other backends, a fatal connection error occurs. As a result, WebSphere Application Server purges the connection pool based on the Purge Policy setting and applications are able to recover from the problem.

How do I find the JNDI name of an application?

Check the data source JNDI name and ensure that it is bound to the JNDI namespace when the application server starts. If the JNDI name is jdbc/ds, you should see this entry in the SystemOut.log: Also, check the application code and ensure that it is looking up the correct JNDI name.