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Intermittent TNS-00507, TNS-12537 and ORA-12514 Causing Loss of JDBC Connectivity (Doc ID 2817861.1)

Last updated on AUGUST 09, 2023

Applies to:

JDBC - Version 19.3 and later
Information in this document applies to any platform.


Intermittent loss of JDBC/thin connectivity from Weblogic.

The database alert.log shows:

TNS-12537: TNS:connection closed
TNS-00507: Connection closed

The JDBC application logs show:

ORA-12514, TNS:listener does not currently know of service requested in connect descriptor


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