kubina opened a new issue #1146: Consider Adding Metrics to Track CPU and I/O 
Utilization for Better Performance Monitoring
URL: https://github.com/apache/accumulo/issues/1146
 
 
   Exposing the CPU and I/O utilization of methods that are likely to consume 
the most of those resources could provide insights into overall potential 
performance improvements to Accumulo. Further, exposing such metrics at the 
table level could help identify tables with inefficient schema, inefficient 
bulk import strategies, or have iterators or aggregators that are resource hogs.
   
   This issue is to capture the methods or threads that are most likely to have 
high CPU or high I/O utilization.
   

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