Hi All, I am using Mapreduce to scan HBase region to get the rowkey_list that related with one query. In Map period, the mapper outputs partial rowkey_list. In reduce period, the reducer will collect and sort all rowkey. If I need to use rowkey_list result of reduce, how can transport the rowkey_list outside reduce?
I have tried to write one reduce output to HDFS "/part-r-00000", but I found the efficiency is too low. How can I use the reduce result in next code part? Is there one API or example that can be used? Thanks. Regards, William Liu
