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Heng Chen commented on HBASE-15377: ----------------------------------- Oh, sorry, just see it now. HBASE-15376 contains changes of this issue... > Per-RS Get metric is time based, per-region metric is size-based > ---------------------------------------------------------------- > > Key: HBASE-15377 > URL: https://issues.apache.org/jira/browse/HBASE-15377 > Project: HBase > Issue Type: Sub-task > Reporter: Enis Soztutar > > We have metrics for Get operations at the region server level and region > level. > {code} > "Get_num_ops" : 4837505, > "Get_min" : 0, > "Get_max" : 296, > "Get_mean" : 0.2934618155433431, > "Get_median" : 0.0, > "Get_75th_percentile" : 0.0, > "Get_95th_percentile" : 1.0, > "Get_99th_percentile" : 1.0, > {code} > and > {code} > "Namespace_hbase_table_meta_region_1588230740_metric_get_num_ops" : 103, > "Namespace_hbase_table_meta_region_1588230740_metric_get_min" : 450, > "Namespace_hbase_table_meta_region_1588230740_metric_get_max" : 470, > "Namespace_hbase_table_meta_region_1588230740_metric_get_mean" : > 450.19417475728153, > "Namespace_hbase_table_meta_region_1588230740_metric_get_median" : 460.0, > "Namespace_hbase_table_meta_region_1588230740_metric_get_75th_percentile" > : 470.0, > "Namespace_hbase_table_meta_region_1588230740_metric_get_95th_percentile" > : 470.0, > "Namespace_hbase_table_meta_region_1588230740_metric_get_99th_percentile" > : 470.0, > {code} > The problem is that the report values for the region server shows the > latency, versus the reported values for the region shows the response sizes. > There is no way of telling this without reading the source code. > I think we should deprecate response size histograms in favor of latency > histograms. > See also HBASE-15376. -- This message was sent by Atlassian JIRA (v6.3.4#6332)