My Oracle Support Banner

When Using CMAN, Connect Strings With Multiple ADDRESS_LISTs Per DESCRIPTION Fail With ORA-12529 (Doc ID 2682117.1)

Last updated on FEBRUARY 28, 2023

Applies to:

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


When using JDBC connections with CMAN, connections whose connect strings use multiple ADDRESS_LISTs per DESCRIPTION fail with the following error:

ORA-12529, TNS:connect request rejected based on current filtering rules
  at oracle.ucp.util.UCPErrorHandler.newSQLException(
  at oracle.ucp.util.UCPErrorHandler.throwSQLException(
  at oracle.ucp.jdbc.PoolDataSourceImpl.startPool(
  at oracle.ucp.jdbc.PoolDataSourceImpl.getConnection(
  at oracle.ucp.jdbc.PoolDataSourceImpl.access$500(
  at oracle.ucp.jdbc.PoolDataSourceImpl$
  at oracle.ucp.jdbc.PoolDataSourceImpl.getConnection(
  at oracle.ucp.jdbc.PoolDataSourceImpl.getConnection(
  at oracle.ucp.jdbc.PoolDataSourceImpl.getConnection(


For example, this is a working connect string, where only one ADDRESS_LIST is used per DESCRIPTION:



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.