My Oracle Support Banner

Questions about how ONS and FCF work with JDBC (Doc ID 752595.1)

Last updated on SEPTEMBER 03, 2019

Applies to:

JDBC - Version 10.2.0.1 to 11.2.0.3.0 [Release 10.2 to 11.2]
Information in this document applies to any platform.

Purpose

Simple questions about how ONS and FCF work with JDBC

Questions and Answers

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


In this Document
Purpose
Questions and Answers
 When the JDBC creates connections through FCF/ONS why do we see 2 connections/details on the OS
level using netstat ( one with port 6200 and one server process 1521)?
 Can you explain how ONS works with the JDBC driver?
  
What happens if the ONS service is not running, will the client connection fail or will it still connect to the database (port 1521) and put a warning message on the application log?
References

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.