chengaofeng opened a new issue #5935:
URL: https://github.com/apache/skywalking/issues/5935
I am using ```GraphQL``` to query the ```service_relation_server_cpm```
metric from OAP, It's ok when the ```Duration``` is step by ```MINUTE```.
while set the step by ```HOUR``` or ```DAY```, the ```value``` is always
```0```.
OAP version ```7.0.0```
## query
```
query: quryTopoInfo($duration: Duration!) {
cpmS: getLinearIntValues(metric:{
name: "service_relation_server_cpm"
id: "9_10"
}, duration: $duration) {
values {
id
value
}
}
}
```
## step by minute
##### Variables
```
{"duration":{"start":"2020-12-02 0930","end":"2020-12-02
0935","step":"MINUTE"}}
```
##### Response
```
{"data":{"cpmS":{"values":[{"id":"202012020930_9_10","value":5},{"id":"202012020931_9_10","value":3},{"id":"202012020932_9_10","value":3},{"id":"202012020933_9_10","value":7},{"id":"202012020934_9_10","value":2},{"id":"202012020935_9_10","value":8}]}}}
```
## step by hour
##### Variables
```
{"duration":{"start":"2020-12-02 09","end":"2020-12-02 10","step":"HOUR"}}
```
##### Response
```
{"data":{"cpmS":{"values":[{"id":"2020120209_9_10","value":0},{"id":"2020120210_9_10","value":0}]}}}
```
## step by day
##### Variables
```
{"duration":{"start":"2020-12-01","end":"2020-12-02","step":"DAY"}}
```
##### Response
```
{"data":{"cpmS":{"values":[{"id":"20201201_9_10","value":0},{"id":"20201202_9_10","value":0}]}}}
```
## the data store in the es
```
{"_index":"service_relation_server_cpm-20201202","_type":"_doc","_id":"202012020935_9_10","_score":5.6863337,"_source":{"total":8,"time_bucket":202012020935,"entity_id":"9_10","value":8}},
{"_index":"service_relation_server_cpm-20201202","_type":"_doc","_id":"202012020936_9_10","_score":5.6863337,"_source":{"total":3,"time_bucket":202012020936,"entity_id":"9_10","value":3}},
{"_index":"service_relation_server_cpm-20201202","_type":"_doc","_id":"20201202_9_10","_score":5.6863337,"_source":{"total":30,"time_bucket":20201202,"entity_id":"9_10","value":0}},
{"_index":"service_relation_server_cpm-20201202","_type":"_doc","_id":"202012020931_9_10","_score":5.6863337,"_source":{"total":3,"time_bucket":202012020931,"entity_id":"9_10","value":3}},
{"_index":"service_relation_server_cpm-20201202","_type":"_doc","_id":"202012020932_9_10","_score":5.6863337,"_source":{"total":3,"time_bucket":202012020932,"entity_id":"9_10","value":3}},
{"_index":"service_relation_server_cpm-20201202","_type":"_doc","_id":"202012020933_9_10","_score":5.6863337,"_source":{"total":7,"time_bucket":202012020933,"entity_id":"9_10","value":7}},
{"_index":"service_relation_server_cpm-20201202","_type":"_doc","_id":"202012020934_9_10","_score":5.6863337,"_source":{"total":2,"time_bucket":202012020934,"entity_id":"9_10","value":2}},
{"_index":"service_relation_server_cpm-20201202","_type":"_doc","_id":"202012020930_9_10","_score":3.5491176,"_source":{"total":5,"time_bucket":202012020930,"entity_id":"9_10","value":5}},
{"_index":"service_relation_server_cpm-20201202","_type":"_doc","_id":"2020120209_9_10","_score":3.5491176,"_source":{"total":30,"time_bucket":2020120209,"entity_id":"9_10","value":0}},
```
there are two problems i am confused
1. the ```value``` field of item ```_id: 20201202_9_10``` and ```_id:
2020120209_9_10``` is ```0```.
1. the ```total``` field of item ```_id: 20201202_9_10``` and ```_id:
2020120209_9_10``` is ```30``` , which is not equals ```8 + 3 + 3 + 3 + 7+ 2 +
5 = 31 ```
Please winder me if I am wrong, and point me the right way to get
```service_relation_server_cpm``` metric by ```HOUR``` and ```DAY```
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