HBase-4348 Add metrics for regions in transition
Review Request #4402 - Created March 19, 2012 and updated
This patch is for adding Region in transition metrics to the HMaster metrics system. It also adds these metrics in the master ui, in the Region in transition section. I have attached the proposed new format in the jira 4348.
Ran on a 5 node cluster and kill region servers randomly to observe the changes in the RIT metrics as emitted out by the Master's mxbean; mvn test passes without any failure.