Connection Via Oracle Net Fails With Error ORA-21561: OID Generation Failed
(Doc ID 559981.1)
Last updated on SEPTEMBER 08, 2023
Applies to:
Oracle Net Services - Version 10.2.0.2 to 12.2.0.1 [Release 10.2 to 12.2]PeopleSoft Cloud Manager - Version 11 to 11 [Release 8.4]
Information in this document applies to any platform.
Symptoms
SQL*Plus connections from a remote client via the listener fail with the following error:
ORA-21561 : OID generation failed
e.g.
-bash-2.05b$ sqlplus username/password@tns_connect_string
Changes
It is likely that a recent upgrade has taken place.
This error is usually the result of a hostname (FQDN or shortname) resolution issue.
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |