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From GitBox <...@apache.org>
Subject [GitHub] rdhabalia commented on issue #2128: Schedule task to update function stats separately
Date Thu, 12 Jul 2018 06:58:25 GMT
rdhabalia commented on issue #2128: Schedule task to update function stats separately
URL: https://github.com/apache/incubator-pulsar/pull/2128#issuecomment-404409702
 
 
   >  I do like to paradigm of an external system keeping track of intervals and metrics
   
   had a quick chat with @srkukarni on it and added last change to keep it configurable (it
supports external-system update and internal both). 
   in very brief, if external-system (eg. prometheus) resets metrics and gets the metrics
then metrics will be wiped out immediately and system will not have any sample-observation.
so, if immediately after prometheus gets metrics if anyone wants to get metrics using cli-command
then it will not be able to get it. Best example is: Pulsar cli-stats-command which keeps
one sample of metrics. also, it is useful when you don't have prometheus setup and if you
want to know your metrics number then also it helps to get metrics numbers.

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