Hello- We have had some problems with our cluster after decommissioning nodes. The 2 things that are troubling us are:
1) decommissioned nodes continue to show in master-status page as Dead Region Servers 2) we are seeing very busy (i.g. CPU and IO) nodes after decommissioning. Looking at stack traces on the busy RSs indicates the work is compaction. Our procedure for decommissioning is: 1) shutdown RS, job tracker and then DN 2) remove node for Hadoop slaves file and HBase regionservers file on master and RSs So, is there a way to decommission that will preserve locality and also inform HBase that a node is gone for good? Thanks, Ted
