[ http://issues.apache.org/jira/browse/HADOOP-433?page=comments#action_12427599 ] Doug Cutting commented on HADOOP-433: -------------------------------------
Are you proposing that we should add a getSplit() method to RecordReader? Then the progress wrapper could delegate to provide the original split. Would that suffice? BTW, do we have an issue anywhere to add a generic Split interface? I couldn't find one. > Better access to the RecordReader > --------------------------------- > > Key: HADOOP-433 > URL: http://issues.apache.org/jira/browse/HADOOP-433 > Project: Hadoop > Issue Type: Improvement > Components: mapred > Affects Versions: 0.5.0 > Reporter: Benjamin Reed > Priority: Minor > > The record reader has access to the FileSplit which can in turn have > information that is useful to the Mapper. For example, Map processing may > vary according to file name or attributes associated with a file. > Unfortunately, even using a MapRunner you only have access to the progress > wrapper of the RecordReader. To get access to the real record reader I had to > use a thread local variable which I set in RecordReader.getNext(). It would > be much nicer if you could get a reference to the real RecordReader from the > RecordReader passed to MapRunner. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
