Hadoop code base splits

[Matthew John]

Hi,

Can someone provide me some pointers on the following details of
Hadoop code base:

1) breakdown of HDFS code base (approximate lines of code) into
following modules:
         - HDFS at the Datanodes
         - Namenode
         - Zookeeper
         - MapReduce based
         - Any other relevant split

2) breakdown of Hbase code into following modules:
         - HMaster
         - RegionServers
         - MapReduce
         - Any other relevant split

Matthew John