[ http://issues.apache.org/jira/browse/HADOOP-120?page=comments#action_12373386 ]
Dick King commented on HADOOP-120: ---------------------------------- The big deal is probably not so much the space it takes but the TIME it takes to look up a class. Owen, I'll stop by at 11 to talk about this. I think we need to generalize the notion of an input ot output class to an input or output _descriptor_ . Gotta run now -- literally. -dk > Reading an ArrayWriter does not work because valueClass does not get > initialized > -------------------------------------------------------------------------------- > > Key: HADOOP-120 > URL: http://issues.apache.org/jira/browse/HADOOP-120 > Project: Hadoop > Type: Bug > Components: io > Environment: Red Hat > Reporter: Dick King > Attachments: hadoop-120-fix.patch > > If you have a Reducer whose value type is an ArrayWriter it gets enstreamed > alright but at reconstruction type when ArrayWriter::readFields(DataInput in) > runs on a DataInput that has a nonempty ArrayWriter , newInstance fails > trying to instantiate the null class. -- 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
