[GitHub] [hbase] fan1emon commented on pull request #4719: HBASE-27316 Time based metrics will be reset after any get request

2022-08-24 Thread GitBox 


fan1emon commented on PR #4719:
URL: https://github.com/apache/hbase/pull/4719#issuecomment-1225376011

   First query jmx
   ```
 "FlushTime_num_ops": 11142,
 "FlushTime_min": 1201,
 "FlushTime_max": 4614,
 "FlushTime_mean": 2437,
 "FlushTime_25th_percentile": 1344,
 "FlushTime_median": 2383,
 "FlushTime_75th_percentile": 2647,
 "FlushTime_90th_percentile": 4607,
 "FlushTime_95th_percentile": 4610,
 "FlushTime_98th_percentile": 4612,
 "FlushTime_99th_percentile": 4613,
 "FlushTime_99.9th_percentile": 4613,
 "FlushTime_TimeRangeCount_1000-3000": 4,
 "FlushTime_TimeRangeCount_3000-1": 1,
   ```
   Next
   ```
 "FlushTime_num_ops": 11191,
 "FlushTime_min": 534,
 "FlushTime_max": 3932,
 "FlushTime_mean": 2835,
 "FlushTime_25th_percentile": 2676,
 "FlushTime_median": 3104,
 "FlushTime_75th_percentile": 3531,
 "FlushTime_90th_percentile": 3913,
 "FlushTime_95th_percentile": 3922,
 "FlushTime_98th_percentile": 3928,
 "FlushTime_99th_percentile": 3930,
 "FlushTime_99.9th_percentile": 3931,
 "FlushTime_TimeRangeCount_300-1000": 1,
 "FlushTime_TimeRangeCount_1000-3000": 2,
 "FlushTime_TimeRangeCount_3000-1": 4,
   ```
   Some metrics like `FlushTime_max` , `FlushTime_TimeRangeCount_1000-3000` are 
reset


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[GitHub] [hbase] fan1emon commented on pull request #4719: HBASE-27316 Time based metrics will be reset after any get request

2022-08-24 Thread GitBox 


fan1emon commented on PR #4719:
URL: https://github.com/apache/hbase/pull/4719#issuecomment-1225369787

   I can't figure out why snapshot will be reset after any get request.
   The count of ops will keeps growing while the quantiles are reset.
   
   I'll fix the test error if this patch needed


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