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TNS-12511: TNS:service handler found but it is not accepting
connections



TNS-12511: TNS:service handler found but it is not accepting connections..

Answer / guest

Cause: The dispatchers notified the listener that they
temporarily do not accept new connections.

Action: Attempt the connection again. If error persists,
contact the DBA to check the state of the dispatchers and/or
ask him to increase the number of dispatchers.

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