protected void verifyResultsAndUpdateMetrics(boolean verify, Get[] gets, long elapsedNano,
      Result[] results, Table table, boolean isNullExpected) throws IOException {
      totalOpTimeMs.addAndGet(elapsedNano / 1000000);
      numKeys.addAndGet(gets.length);
      int i = 0;
      for (Result result : results) {
        verifyResultsAndUpdateMetricsOnAPerGetBasis(verify, gets[i++], result, table,
          isNullExpected);
      }
    }
Should only be used for the concurrent writer/reader workload. The maximum key we are allowed
to read, subject to the "key window" constraint.
hbase-diagnostics/src/main/java/org/apache/hadoop/hbase/util/MultiThreadedReader.java