When deploying Flink on a single machine and creating the connection table of oracle19c RAC, the error ora-12505 is reported. Who can help

Single deployment flink, establish oracle19c rac The connection table of reports an error ORA-12505, Who can help to see why

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Take the answer 1：

ORA-12505 The probability is yours oracle Connect tnsnames.ora I don't know ... Follow flinkcdc It shouldn't matter https://blog.csdn.net/qq_45054878/article/details/110820890（ This answer is collated from Flink CDC Community ）

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