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11g / 12c Databases Integrated with OID or OUD for LDAP Naming: External Procedures Returning Random ORA-28575 (Doc ID 2505269.1)

Last updated on SEPTEMBER 11, 2019

Applies to:

Oracle Unified Directory - Version and later
Oracle Internet Directory - Version 11.1.1 and later
Oracle Net Services - Version and later
PL/SQL - Version and later
Information in this document applies to any platform.


Random ORA-28575 errors when executing queries utilizing functions operations on databases (DB) configured for LDAP naming / tnsnames resolution with Oracle Internet Directory (OID) or Oracle Unified Directory (OUD).

ORA-28575: unable to open RPC connection to external procedure agent
ORA-06512: at "<PACKAGE>", line 161
ORA-06512: at "<PACKAGE>", line 185
28575. 00000 - "unable to open RPC connection to external procedure agent"
*Cause: Initialization of a network connection to the <DB_CONNECT_NAME> agent did
  not succeed. This problem can be caused by network problems,
  incorrect listener configuration, or incorrect transfer code.
*Action: Check listener configuration in LISTENER.ORA and TNSNAMES.ORA, or
  check Oracle Names Server.


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