Change RCFileOutputFormat's generic signatute to be <WritableComparable, ..> ----------------------------------------------------------------------------
Key: HIVE-479 URL: https://issues.apache.org/jira/browse/HIVE-479 Project: Hadoop Hive Issue Type: Improvement Reporter: He Yongqiang In one test for hive-477, i found that the below command can not sucessfully pass: {noformat} $HADOOP_HOME/bin/hadoop jar $HADOOP_HOME/contrib/streaming/hadoop-0.19.0-streaming.jar -input /user/hive/warehouse/tablerc1 -output testHiveWriter -inputformat org.apache.hadoop.hive.ql.io.RCFileInputFormat -outputformat org.apache.hadoop.hive.ql.io.RCFileOutputFormat -mapper org.apache.hadoop.mapred.lib.IdentityMapper -jobconf mapred.work.output.dir=. -jobconf hive.io.rcfile.column.number.conf=32 -jobconf mapred.output.compress=true -numReduceTasks 0 {noformat} It is caused by the assumption that RCFileOutputFormat thinks the key's class of passes in records is Void. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.