# Metrics explanation

**URL:** <https://discourse.haproxy.org/t/metrics-explanation/8770>\
**Category:** Help!\
**Created:** [June 12, 2023, 5:02pm UTC](https://discourse.haproxy.org/t/metrics-explanation/8770 "2023-06-12T17:02:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dmgeurts](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.haproxy.org/dmgeurts/32/1979_2.png) [@dmgeurts](https://discourse.haproxy.org/u/dmgeurts)\
**Post date:** [June 12, 2023, 5:02pm UTC](https://discourse.haproxy.org/t/metrics-explanation/8770/1 "2023-06-12T17:02:43Z")

</div>

Looking into an issue where we ran out of backend node connections, I’ve set the maxconn values for the pool members, and would like to graph these values in Grafana. I have the metrics, but can’t find what certain values mean:

- h1\_open\_connections (spiked to the limit we found)
- need\_conn\_est (flatlined at the found limit)
- scur

Or are there other values I should be looking at? I have session/sec counters, just not concurrent, queued and (HAproxy) rejected sessions.