Change RCFileOutputFormat's generic signatute to be <WritableComparable, ..>
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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.
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