UCP Pool Erroring Out With: "oracle.ucp.UniversalConnectionPoolException: No valid connection available"

(Doc ID 2334452.1)

Last updated on NOVEMBER 30, 2017

Applies to:

JDBC - Version 12.1.0.2.0 and later
Information in this document applies to any platform.

Symptoms

On : 12.1.0.2.0 version, Thin JDBC driver

Approximately 2.5 hours after application startup, It starts getting errors about JDBC connections being closed.

ERROR
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BUSINESS IMPACT
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The issue has the following business impact:
Due to this issue, the application does not work.

Cause

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