[ http://issues.apache.org/jira/browse/HADOOP-525?page=all ]
Work on HADOOP-525 started by Milind Bhandarkar. > Need raw comparators for hadoop record types > -------------------------------------------- > > Key: HADOOP-525 > URL: http://issues.apache.org/jira/browse/HADOOP-525 > Project: Hadoop > Issue Type: Improvement > Components: record > Affects Versions: 0.6.0 > Reporter: Sameer Paranjpye > Assigned To: Milind Bhandarkar > Attachments: TypeBuilder-support.tar, TypeBuilder.java, > WordCountType.java > > > Raw comparators are not generated for types that are generated with the > Hadoop record framework. This could have a substantial performance impact > when using hadoop record generated types in Map/Reduce. The record i/o > framework should auto-generate raw comparators for types. > Comparison for hadoop record i/o types is defined to be member wise > comparison of objects. A possible implementation could only deserialize one > member from each object at a time, compare them and either return or move on > to the next member if the values are equal. -- 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
