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TNS-12602: TNS: Connection Pooling limit reached

TNS-12602: TNS: Connection Pooling limit reached..

Answer / guest

Cause: The operation failed because maximum active current
connections has been reached. It may not be a real error
when the Connection Pooling feature is enabled. It is
possible that the application later reissues the operation
and successfully grabs the connection pool slot and proceeds.

Action: This is an internal error. Enable tracing and
attempt to repeat the error. If it occurs again, contact
Oracle Customer Support.

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