Hi: I'm recently using hbase (included in hadoop 0.15.2 release)to manage spatial data. And found two "flaws" which I think can be improved.
First, if you fetch the column names in a hbase table using " Set <Text> columns = tableDes.families().keySet(); " You can get a set of column names that ended by a colon, which I think should be gotten rid of. Second, if you read all contains in a hbase table by "HScannerInterface.next" method, you will ge a TreeMap<Text, byte[]> every time you call. Returning column names every time is a waste of memory and network bandwidth. And there should be an efficient way to do such work. The above two APIs are used in my program and also in Hbase shell program. I don't know if there are alternative APIs that have performed the improvements. Best regards. Mafish -- [EMAIL PROTECTED] Institute of Computing Technology, Chinese Academy of Sciences, Beijing.
