MGW_AGENT: mgw extproc connections fail with ORA-12537 and TNS-12518 reported in Listener log
(Doc ID 2362132.1)
Last updated on FEBRUARY 12, 2020
Applies to:
Oracle Database - Enterprise Edition - Version 12.1.0.2 to 12.2.0.1 [Release 12.1 to 12.2]Oracle Net Services - Version 12.1.0.2 to 12.2.0.1 [Release 12.1 to 12.2]
Oracle Database Cloud Schema Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
Running an Oracle Messaging Gateway Agent (mgw_agent) out of a 12.1.0.2 Database.
Using an Oracle Grid structure but single (standalone).
Upgrade was done for the GRID Home 12.1.0.2 to 12.2.0.1 but not the Database or Listener.
Tnsnames.ora file contains:
Changes
This was triggered by the GRID being upgraded from 12.1.0.2 to 12.2.0.1 but not the Database Home.
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |