What does "error Could not connect to hive-server: 10000" mean?

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This error message suggests that the application or program is unable to connect to the Hive Server, which is responsible for processing the queries in Apache Hive, a data warehousing tool used for querying and analyzing large datasets stored in Hadoop. The error code "10000" is a generic error code indicating a connection failure. Possible reasons for this error could be incorrect credentials or network issues preventing the connection.