HDFS data for HBase and other projects

[Wasim Bari]

Hi,
     If we have already data stored in HDFS. Which of following sub-projects 
can use this data for further processing/operations:

  1.. Pig 
  2.. HBase 
  3.. ZooKeeper 
  4.. Hive 
  5.. Any other Hadoop related project

Thanks,

Wasim