https://community.cloudera.com/t5/Support-Questions/Sqoop-import-table-from-mysql-to-Hive-failled-java-util/m-p/378330#M243508 <P>The error message you're encountering, "java.util.LinkedList cannot be cast to org.apache.hive.hcatalog.mapreduce.InputJobInfo," typically occurs when there's a mismatch between the data types or structures during a Sqoop import from MySQL to Hive. Here are some steps to troubleshoot and potentially resolve the issue:</P><OL><LI><P><STRONG>Check Hive and HCatalog Compatibility</STRONG>: Ensure that the versions of Hive and HCatalog you are using are compatible with your version of Sqoop. If there's a version mismatch, consider updating or downgrading one of them to ensure compatibility.</P></LI><LI><P><STRONG>Check Your SQL Query</STRONG>: Review the SQL query you're using with Sqoop to import data. Ensure that it's correctly configured and that the source and target tables are correctly specified.</P></LI><LI><P><STRONG>Check Data Types</STRONG>: Ensure that the data types of the source MySQL table match the data types of the target Hive table. Inconsistencies in data types can lead to this error.</P></LI><LI><P><STRONG>Check Field Mapping</STRONG>: Verify that the fields in your MySQL table match the columns in your Hive table in terms of number and order. Ensure there are no extra or missing columns.</P></LI></OL> Tue, 31 Oct 2023 07:21:22 GMT ggangadharan 2023-10-31T07:21:22Z