The Network Adapter could not establish the connection Getting A JDBC Connection On Startup of OAM (Doc ID 2322790.1)

Last updated on NOVEMBER 02, 2017

Applies to:

JDBC - Version 10.1.0.2 and later
Information in this document applies to any platform.

Symptoms

On : 11.2.0.3 Thin JDBC driver

WebLogic 11g - 10.3.6
OAM software is 11.1.2.3
Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
java version - 1.7.0_111


When testing the datasource from OAM console and while the server is booting up, the following errors occur:


weblogic.jdbc.extensions.ConnectionDeadSQLException: weblogic.common.resourcepool.ResourceDeadException: 0:weblogic.common.ResourceException: Could not create pool connection. The DBMS driver exception was: IO Error: The Network Adapter could not establish the connection


If the connection is made from another domain datasource in WebLogic, the connection succeeds. The issue only occurs with OAM datasource.


Cause

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