qwtsc opened a new issue, #2354: URL: https://github.com/apache/incubator-hugegraph/issues/2354
### Bug Type (问题类型) None ### Before submit - [X] 我已经确认现有的 [Issues](https://github.com/apache/hugegraph/issues) 与 [FAQ](https://hugegraph.apache.org/docs/guides/faq/) 中没有相同 / 重复问题 (I have confirmed and searched that there are no similar problems in the historical issue and documents) ### Environment (环境信息) hugegraph in k8s using prometheus and grafana as service monitor. ### Expected & Actual behavior (期望与实际表现)  prometheus metrics format is invalid. After some investigations and code review, I think that the problem would probably be that this [PR](https://github.com/apache/incubator-hugegraph/pull/2286) do not use the correct data exposition format that prometheus community required. The acceptable histogram format can be viewed as follows: ``` # A histogram, which has a pretty complex representation in the text format: # HELP http_request_duration_seconds A histogram of the request duration. # TYPE http_request_duration_seconds histogram http_request_duration_seconds_bucket{le="0.05"} 24054 http_request_duration_seconds_bucket{le="0.1"} 33444 http_request_duration_seconds_bucket{le="0.2"} 100392 http_request_duration_seconds_bucket{le="0.5"} 129389 http_request_duration_seconds_bucket{le="1"} 133988 http_request_duration_seconds_bucket{le="+Inf"} 144320 http_request_duration_seconds_sum 53423 http_request_duration_seconds_count 144320 ``` and I do also think the correct metric type here is supposed to be `summary` rather than `histogram` according to the prometheus [best practice](https://prometheus.io/docs/practices/histograms/) documentation. By the way, I am willing to provide a PR to fix this issue as well as grafana dashboard configuration after I figure it out . ### Vertex/Edge example (问题点 / 边数据举例) _No response_ ### Schema [VertexLabel, EdgeLabel, IndexLabel] (元数据结构) _No response_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@hugegraph.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
