Questions tagged [prometheus]

For questions about Prometheus, an open-source systems monitoring and alerting toolkit.

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1answer
30 views

How to calculate disk space required by Prometheus v2.2?

We are trying to calculate the storage requirements but is unable to find the values needed to do the calculation for our version of Prometheus (v2.2). Prometheus(v2.2) storage documentation gives ...
0
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1answer
15 views

Expose metrics for Kotlin using JMX_Exporter to prometheus

I am trying to use JMX_Exporter for my kotlin code to expose metrics to prometheus in order to show it in Grafana. I have gone through many articles and tried to understand how could it be done. I ...
0
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0answers
57 views

How to calculate burn rate for SLOs

I've read the Google SRE book a few times but I need some clarifications on exactly how to set up the burn rate and understanding how long it'll take to trigger an alert. Most of my questions are ...
1
vote
2answers
50 views

What is the advantage of using Prometheus over ingesting metrics using logs?

I want to setup monitoring on our environment. I am wondering on what are the advantages of using something like Prometheus for making metrics vs. just using something like the ELK stack for creating ...
0
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0answers
45 views

limit prometheus alert to kubernetes nodes of a specific label

I am working to build an alert rule that is basically "When number of running pods is greater than cluster_pod_capacity - single_node_capacity" sum(kubelet_running_pod_count) > sum(...
4
votes
1answer
328 views

Why is Prometheus not a good choice for data with high cardinality?

I have a background in relational databases and new to Prometheus. I wonder why Prometheus is not a good choice for high cardinality data? Why do I need to use low cardinality data? It's exact ...
-1
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0answers
12 views

Is there an exporter that monitors traffic for virtual hosts in Prometheus?

I was instructed to find an exporter to Prometheus in order to monitor virtual hosts on an apache server. I haven't found anything about it. Or am I looking at it wrongly? I'm new to this field and ...
2
votes
1answer
1k views

Prometheus alert CPUThrottlingHigh raised but monitoring does not show it

I have installed Prometheus to monitor my installation and it is frequently raising alerts about CPU throttling. The Prometheus alert rules to identify this alert is : alert: CPUThrottlingHigh expr: ...
2
votes
1answer
28 views

Which libraries generate observability metrics for applications in the cluster to prometheus?

I recently read "Cloud Native DevOps with Kubernetes" by O'reily and it mentions the RED and USE metrics which are a good starting point for gaining better observability into the system, however I'm ...
1
vote
1answer
180 views

Keeping graphs of terminated Kubernetes pods in Prometheus/Grafana

I love using Prometheus/Grafana to monitor and tune resource usage on my Kubernetes clusters. When pods are terminated, however, the graphs are disposed of it seems. I am looking for a solution to ...
3
votes
1answer
141 views

Does Prometheus expose the Horizontal Pod Autoscaler's “Current CPU Utilization” as shown in the Kubernetes dashboard?

In the Kubernetes dashboard, I can see for a HPA the following information: Min Replicas: 3 Max Replicas: 11 Target CPU Utilization: 80% Status Current Replicas: 3 Desired Replicas: 3 Current CPU ...
1
vote
0answers
46 views

How do I set up a Prometheus rule to routinely scrape an HTTP endpoint?

I'm getting started with Prometheus (Prometheus Operator), and I'm looking at adding it to an existing cluster, where each container has a /healthcheck endpoint, that is going to either return true, ...
1
vote
2answers
128 views

Jenkins plugin recomendation

My company wants to visualize the % of failed/successful deployments of jenkins jobs. And the way jenkins is arranged complicates the task, each team or project is a folder name and inside the ...
3
votes
1answer
455 views

How fast does Prometheus data grow?

This may sound like a vague question so I will provide some context below. The basic question is : What parameters describe the growth in size of a Prometheus database over time? To tie the question ...
2
votes
1answer
309 views

How to get hostname from node-exporter in Docker Swarm?

I have setup my monitoring with the cadvisor, node-exporter, prometheus, grafana stack in my clustered environment using docker swarm. What is the easiest way to get my actual hostnames picked up by ...
2
votes
1answer
217 views

What is a good storage for storing performance results and visualizing in grafana

Intro I am a tester and need to analyze the results of automated tests (response times and etc.) Current situation 1) I run performance tests using locust.io 2) During test execution, response ...
1
vote
1answer
164 views

Local Prometheus and Grafana Installations to Monitor a Kubernetes Cluster

We want to start our monitoring off the cluster on a local server. Is this practical and will it be feasible and reasonable to hook local Prometheus and Grafana installations into a Kubernetes ...
4
votes
4answers
152 views

How to find interdependencies between pods in a Kubernetes cluster?

Two Pods run in a Kubernetes cluster. One is a simple Wordpress application and the other a Mysql database. The Wordpress Pod communicates with the Mysql database. The aim is to find dependencies ...
12
votes
3answers
4k views

How do I troubleshoot missing data in my Prometheus database?

I have been gradually integrating Prometheus into my monitoring workflows, in order to gather detailed metrics about running infrastructure. During this, I have noticed that I often run into a ...