[ http://issues.apache.org/jira/browse/HADOOP-732?page=comments#action_12451802 ] Runping Qi commented on HADOOP-732: -----------------------------------
Strings sgould be fine. > SequenceFile's header should allow to store metadata in the form of key/value > pairs > ----------------------------------------------------------------------------------- > > Key: HADOOP-732 > URL: http://issues.apache.org/jira/browse/HADOOP-732 > Project: Hadoop > Issue Type: New Feature > Reporter: Runping Qi > > The sequence file currently stores a fixed list of metadata attributes, such > as key/value class names, > compression method, etc. To make sequence file more self descriptable, it > should allow to store a list of key/value pairs. One particular attribute of > interest is to indicate whether the key/value classes are actually hadoop > record classes, > if so, store the DDls for the records. This way, we may create tools to > extract DDl from a sequence file and > then generate necessary classes. It also make it possible to provide an > interpretive version of Hadoop record. > This way, even in the situation where Hadoop or the application does not have > the necessary classes, > a sequence file of Hadoop records can be read and deserialized > "interpretively". -- 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
