Hello, Anton. Thanks for an answer!
> Let's just make sure this syntax is extendable. Yes, I ~can~ will! > I'd like to count only latency greater than 37ms (0-37 - > ignored, 37-52, 52-infinity - recorded), it should be possible to skip some > values. Currently, histogram metric don't support this feature. I have no plans to add it. Your contribution are welcome, as always. > Another case is to specify 2+ windows for same metric AFAIK you are talking about HitRateMetrics. I have no plans to improve this legacy metric somehow. Can you file a ticket with the features you want to add? В Чт, 27/06/2019 в 12:56 +0300, Anton Vinogradov пишет: > Nikolay, > > The approach looks good to me. > Let's just make sure this syntax is extendable. > For example, I'd like to count only latency greater than 37ms (0-37 - > ignored, 37-52, 52-infinity - recorded), it should be possible to skip some > values. > Another case is to specify 2+ windows for same metric, eg. puts for last > hour, minute, 5 seconds. > > On Thu, Jun 27, 2019 at 12:30 PM Nikolay Izhikov <nizhi...@apache.org> > wrote: > > > Hello, Igniters. > > > > As you may know, I've contributed Phase1 [1] for IEP-35 [2]. > > Now we have metrics subsystem and can create and export any metrics from > > Ignite. > > > > I think user(administrator of Ignite) should be able to configure some > > metrics params in a common way [3] > > > > I propose to use the same way from logging frameworks. > > We should define some file format Ignite can understand. > > An administrator fills configuration file to configure one or several > > metrics. > > Ignite will analyze the file and use provided params during metrics > > creation. > > > > For now, we have 2 types of metrics that should be configured: > > > > * HistrogramMetric [4] > > This metric is a count of measurement that falls into > > predefined intervals. > > An example is "Request processing time distribution". > > We want to calculate a count of requests processed quicker > > then 50ms, 50-100, 100-250, 250-500 and slower. > > > > * HitRateMetric [5] > > This metric is a count of events in the last time interval. > > An example is the "Count of requests processed in the last > > 5 seconds". > > > > Example of file content: > > > > ```` > > cache.my-cahe.GetLatency=50,100,250,500 #Params for the histogram metric > > with the name `cache.my-cahe.get` > > cache.my-cache.RebalancingKeysRate=60000 #Param for existing HitRateMetric > > that hold "Estimated rebalancing speed in keys". > > ```` > > > > Please, share your vision. > > > > [1] > > https://github.com/apache/ignite/commit/fdaa310430aefff07994eb35510d3416886b5bbe > > [2] > > https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=112820392 > > [3] https://issues.apache.org/jira/browse/IGNITE-11927 > > [4] > > https://github.com/apache/ignite/blob/master/modules/core/src/main/java/org/apache/ignite/internal/processors/metric/impl/HistogramMetric.java > > [5] > > https://github.com/apache/ignite/blob/master/modules/core/src/main/java/org/apache/ignite/internal/processors/metric/impl/HitRateMetric.java > >
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