What is the meaning of Hive's error message "Vertex failed Error" and "Mapper initialized failed"?

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The error message "Vertex failed Error" and "Mapper initialized failed" indicate that a failure has occurred in a vertex or mapper within a Hadoop Hive job. This error typically means that the code or logic within the vertex or mapper has encountered an unexpected error, which has caused the job to fail. It is typically necessary to review the logs for the Hadoop cluster where the job was executed to determine the cause of the failure. Some common causes of these errors include issues with input/output data, problems with input/output formats, and issues with processing logic.