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After Killing Service That Participates in RAC, UCP Connections Fail With ORA-12521 (Doc ID 2393137.1)

Last updated on MAY 01, 2018

Applies to:

Universal Connection Pool - Version 12.1.0.2.0 and later
Information in this document applies to any platform.

Symptoms

When testing Application Continuity with JDBC/UCP 12.2.0.1, multiple connection attempts fail with the error ORA-12521: TNS:listener does not currently know of instance requested in connect descriptor.

The test in question executes a reboot -f during the commit phase. This reboot -f reboots the machine without shutting it down, during the activity.

The error message:

java.sql.SQLRecoverableException: IO Error: A connection attempt failed
because the connected party did not properly respond after a period of time,
or established connection failed because connected host has failed to
respond, Authentication lapse 0 ms.
[...]
ORA-12521, TNS:listener does not currently know of instance requested in
connect descriptor


Changes

 

Cause

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