ChiaPing Tsai created HBASE-16866:

             Summary: Avoid NPE in AsyncRequestFutureImpl#updateStats
                 Key: HBASE-16866
             Project: HBase
          Issue Type: Bug
            Reporter: ChiaPing Tsai
            Priority: Minor

If region disables the stats, it won’t response any 
ClientProtos.RegionLoadStats to client. So the NEP will happen in 
We should use relevant log instead of NEP because the data manipulation 
shouldn’t be broken by statistics.
  protected void updateStats(ServerName server, Map<byte[], 
MultiResponse.RegionResult> results) {
      ClientProtos.RegionLoadStats stat = regionStats.getValue().getStat();
      RegionLoadStats regionLoadstats = 

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