# How to measure Availability KPIs and downtime from heartbeats?
**URL:** https://discuss.elastic.co/t/how-to-measure-availability-kpis-and-downtime-from-heartbeats/165903
**Category:** Beats
**Tags:** heartbeat
**Created:** [January 27, 2019, 12:59pm UTC](https://discuss.elastic.co/t/how-to-measure-availability-kpis-and-downtime-from-heartbeats/165903 "2019-01-27T12:59:04Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Ahmed\_Adel](https://discuss.elastic.co/u/Ahmed_Adel)
#### Post date: [January 27, 2019, 12:59pm UTC](https://discuss.elastic.co/t/how-to-measure-availability-kpis-and-downtime-from-heartbeats/165903/1 "2019-01-27T12:59:04Z")
I've configured heartbeat file to send a heartbeat every 30 seconds, now if i received a beat with monitor\_status "down", and the next beat was up.
- Is there are a field represents the downtime between the beats?
- what is the information can i get from this field "beat\_monitor\_duration\_us"?
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### Author:  [@Andrew\_Cholakian1](https://discuss.elastic.co/u/Andrew_Cholakian1)
#### Post date: [February 1, 2019, 9:54pm UTC](https://discuss.elastic.co/t/how-to-measure-availability-kpis-and-downtime-from-heartbeats/165903/2 "2019-02-01T21:54:17Z")
This is a great idea.
1. I think it'd be great to have each document include total downtime or uptime. It's kinda tricky in a distributed situation however. It would probably depend on querying back to Elasticsearch at least on startup to handle a heartbeat restart or move to another machine. I've opened an [issue](https://github.com/elastic/beats/issues/10501) here to track it. I think we should build it at some point.
2. The monitor duration tracks how long it took to run the monitor check. That means sending out a request, then receiving downloading and processing the result. Since processing is negligible this maps to the overall performance of your site in most cases.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [March 1, 2019, 9:54pm UTC](https://discuss.elastic.co/t/how-to-measure-availability-kpis-and-downtime-from-heartbeats/165903/3 "2019-03-01T21:54:20Z")
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