JDBC Connection Validation Broken in GlassFish Server 2.1.1 Patch 9 and Patch 10
(Doc ID 1289919.1)
Last updated on APRIL 20, 2020
Applies to:Oracle GlassFish Server - Version 2.1.1 to 2.1.1 [Release 2.1]
Information in this document applies to any platform.
The typical symptom for this problem is your application receiving a SQLException from a connection that has just been obtained from a JDBC Connection Pool. For example:
If the connection pool does not have validation enabled then seeing SQLExceptions in your application is entirely possible as the connection pool does not test the connection before supplying it to your requesting application. Therefore, if the database has been restarted, the pool will contain "bad" connections which potentially won't be removed until the instance is restarted, and will cause errors until it is.
You've upgraded from an earlier version of the GlassFish Server to either 2.1.1 patch 9 or patch 10.
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