A.64M B.75M C.一個map讀取64M,另外一個map讀取11M D.一個map讀取11M,另外一個map讀取64M
A.start-dfs.sh B.stop-dfs.sh C.sbin/mr-jobhistory-daemon.sh start historyserver D.jps
A.hadoop namenode-jar B.hadoop namenode-format C.hadoop datanode-jar D.hadoop datanode-format