difference Request count vs Request count - server vs Request count - client

[MAkimov]

Hello 

help me understand the difference between metrics:

• Request count - builtin:service.requestCount.total
• Request count - server - builtin:service.requestCount.server 
• Request count - client - builtin:service.requestCount.client
• Number of calls to other services -builtin:service.keyRequest.nonDbChildCallCount

And why these metrics have different meanings on the Custom chart and Service Details page/Service Flow?

as an experiment to understand the metrics, I took the EasyTravelWebserver service: 8079

I userd service for MZ=production 

I selected metrics and displayed them on the chart 

I took the value in 11-10 and compared them for different metrics

• Request count - builtin:service.requestCount.total 
• Request count - server - builtin:service.requestCount.server 
• Request count - client - builtin:service.requestCount.client
• Number of calls to other services -builtin:service.keyRequest.nonDbChildCallCount

result 

• Request count  = 2470
• Request count - server = 2470
• Request count - client  = 627
• Number of calls to other services  = 2120

conclusions:

• Request count  =Request count - server
• Request count - server > Request count - client 
• Request count  > Number of calls to other services

I decided to compare this value with the value on the Detail page

(chose the value on the chart to correspond to a 1 minute interval)

to my surprise, I saw a value of 562 which is not equal to that of the previous

what does it mean ?

I understand what the metric means - Number of calls to other services

its value can be seen in the service flow

I decided to compare this value with the value on custom charts 

took the interval from 11-00 to 11-30 

• Request count - server  
• Request count - client 
• Number of calls to other services 

result 

• Request count - server = 92.6K
• Request count - client  = 21.2K
• Number of calls to other services  = 81K
• ServiFlow Call to caller service = 77.1
• ServiFlow Request =77,3

conclusions:

• Request count  not equal ServiFlow Request
• ServiFlow Call to caller service not equal Number of calls to other services 

Could you help me understand the difference between metrics

[ChadTurner · Accepted solution]

This is the reply I got from Support: 

Request count - builtin:service.requestCount.total - Calculates the total # of requests from both the client and server side

Request count - server - builtin:service.requestCount.server - This Metric is exclusively regarding the # of requests from server side

Request count - client - builtin:service.requestCount.client - This Metric is exclusively regarding the # of requests from the client side

Number of calls to other services -builtin:service.keyRequest.nonDbChildCallCount - Assuming that this request will call other downstream services, this will also get you the total count 

[ChadTurner]

also forgot to mention for the last metric It refers to Key requests, not regular requests.