private static void populateRegion(int startingId, int endingId) {
    Region exampleRegion = ClusterStartupRule.getCache().getRegion("exampleRegion");
    for (int i = startingId; i < endingId; i++) {
      exampleRegion.put("" + i, new Portfolio(i));
    }
  }
These tests add a test hook to make sure query execution sleeps for at least 20 ms, so the
queryMonitor thread will get a chance to cancel the query before it completes.

The MAX_QUERY_EXECUTION_TIME is set as 1 ms, i.e, theoretically all queries will be cancelled
after 1ms, but due to thread scheduling, this may not be true. we can only decrease the flakyness
of the test by making MAX_QUERY_EXECUTION_TIME the smallest possible (1) and making the query
execution time longer (but not too long to make the test run too slow).
geode-cq/src/distributedTest/java/org/apache/geode/cache/query/dunit/QueryMonitorDUnitTest.java