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Posted to notifications@skywalking.apache.org by GitBox <gi...@apache.org> on 2019/03/27 12:42:10 UTC

[GitHub] [incubator-skywalking] mbao opened a new issue #2410: What will makes CPM less than the real

mbao opened a new issue #2410: What will makes CPM less than the real 
URL: https://github.com/apache/incubator-skywalking/issues/2410
 
 
   
   - Why do you submit this issue?
   - [ ] Question or discussion
   
   ___
   ### Question
   - What do you want to know?
   
   I see that  the DataCarrier in TraceSegmentServiceClient uses BufferStrategy.IF_POSSIBLE, so some segment will lose if there is too many segments to send.   So is there other situations in which segment will lose?
   
   If I  change the sampleRate from 1000 to 100, only payload of segment persisting will reduce to 10%, right?
   
   How many CPM can one backend server load(Simply 8 cpu), and how can I compute how many backend servers should the cluster include?
   
   Maybe I should just ask one each, sorry. 
   

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