Issues connectig to Oracle DB in an RAC environment from Diagnostics Collector

If the following error is seen in the Collector Log:

SEVERE oracle_collector [Thread-54] SID:OracleDBServer:1526 Connection Failure: Listener refused the connection with the following error:

ORA-12505

The problem occurs because the Oracle DB is in a RAC environment

The problem can be resolved by setting up one probe per instance when working in an RAC environment

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