My Oracle Support Banner

In WebLogic, JDBC Current Connections Count Rise Rapidly To Maximum In Connection Pool For Data Source. (Doc ID 2496553.1)

Last updated on NOVEMBER 01, 2023

Applies to:

Oracle WebLogic Server - Version 10.3.6 and later
Information in this document applies to any platform.


Current Connections count rise rapidly to Maximum Capacity in JDBC Connection pool for WebLogic data source.

After that the JDBC connections increase and hit the maximum for the pool (set to 100) and no more connections can be made.

The following error appears in the WebLogic managed server log:



The system was recently upgraded from Oracle WebLogic Server 10.3.1 and Oracle EE Database to WebLogic Server 10.3.6 and Oracle EE Database WebLogic was upgraded first and then the database.

The JDBC drivers in use are those that came with the WebLogic 10.3.6 upgrade (Oracle JDBC 4.0 compiled with JDK6 on Fri_Nov_04_08:05:20_PDT_2011)


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

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