If you have some question lie this
How do I get the following meta information about a table
1. recent users of table,
2. top users of table,
3. recent queries/jobs/reports,
4. number of rows in a table
Look :->
The tool available here
Store information from the job tracker including counters, progress, jobxml info. Put it all in cassandra so you can profile runs of a job, day over day etc.
Some Code Samples from This project :
