Questions
Find answers to frequently asked development questions. For information about Better Stack products, explore our docs.
Monitor Custom Kubernetes Pod Metrics Using Prometheus
Monitoring custom metrics in Kubernetes pods using Prometheus involves several steps, including instrumenting your application, exposing the metrics, configuring Prometheus to scrape these metrics,...
How to Use the Selected Period of Time in a Query?
In Prometheus and Grafana, you often want to analyze metrics over a selected period of time. Both platforms offer ways to utilize the selected time range in your queries, allowing you to view metri...
How to Add Https Url on Target Prometheus
To configure Prometheus to scrape metrics from an HTTPS endpoint, you need to specify the target URL with the https scheme in your prometheus.yml configuration file. Additionally, you may need to c...
Why There Are Both Counters and Gauges in Prometheus if Gauges Can Act as Counters?
In Prometheus, both Counters and Gauges are metric types, and while they may seem similar, they serve distinct purposes and are optimized for different use cases. Here’s an overview of the two, why...
Different Prometheus Scrape Url for Every Target
To configure Prometheus to use different scrape URLs for each target, you can leverage the relabel_configs section in your prometheus.yml file. This allows you to define specific scrape configurati...
Relabel Instance to Hostname in Prometheus
Relabeling in Prometheus is a powerful feature that allows you to modify labels in your metrics before they are stored. If you want to relabel the instance label to hostname, you can do this using ...
Prometheus Endpoint of All Available Metrics
In Prometheus, you can access the endpoint that lists all available metrics by querying the /metrics endpoint of your Prometheus server. Here’s how to access this information: Accessing the Metrics...
Getting Error "Get Http://localhost:9443/metrics: Dial Tcp 127.0.0.1:9443: Connect: Connection Refused"
The error message "Get <http://localhost:9443/metrics:> dial tcp 127.0.0.1:9443: connect: connection refused" indicates that your application or service is trying to reach the Prometheus metrics en...
What Does the "Instant" Checkbox in Grafana Graphs Based on Prometheus Do?
The "Instant" checkbox in Grafana graphs when using Prometheus as a data source is a feature that allows you to switch from a time series query to an instant query. Here's a breakdown of what this ...
Context Deadline Exceeded - Prometheus
The "Context Deadline Exceeded" error in Prometheus usually indicates that a query has timed out or that an operation has taken too long to complete. This can happen for several reasons, and unders...
How Do I Write an "Or" Logical Operator on Prometheus or Grafana
In Prometheus and Grafana, you can implement an "OR" logical operation using the or operator in Prometheus Query Language (PromQL) or by structuring queries appropriately in Grafana. Here’s how to ...
Prometheus - Convert Cpu_user_seconds to Cpu Usage %?
To convert cpu_user_seconds (or a similar metric that represents CPU time) to CPU usage percentage in Prometheus, you need to calculate the rate of CPU usage over a defined period and then normaliz...
Increasing Prometheus Storage Retention
Increasing the storage retention period for Prometheus allows you to keep your metrics data for a longer duration, which can be essential for historical analysis, debugging, and reporting. Here's h...
How Can I Group Labels in a Prometheus Query?
Grouping labels in a Prometheus query allows you to aggregate metrics based on specific labels, providing a way to analyze data across different dimensions. You can use the by clause in Prometheus ...
How Can I 'Join' Two Metrics in a Prometheus Query?
Joining two metrics in Prometheus is commonly achieved through the use of the * operator or the group function, allowing you to perform operations between metrics based on their labels. Unlike trad...
How to Calculate Containers' Cpu Usage in Kubernetes With Prometheus as Monitoring?
To calculate CPU usage for containers in a Kubernetes cluster using Prometheus, you need to set up Prometheus to scrape metrics from your Kubernetes nodes and pods. Here’s a step-by-step guide on h...
Prometheus Query to Count Unique Label Values
To count unique label values in Prometheus, you can use the count function along with the by clause to aggregate metrics based on a specific label. This is useful when you want to find out how many...
Prometheus - Add Target Specific Label in Static_configs
Adding target-specific labels in the static_configs section of your Prometheus configuration file (prometheus.yml) allows you to associate additional metadata with your targets. This can be useful ...
How Do I Write a Prometheus Query That Returns the Value of a Label?
To write a Prometheus query that returns the value of a specific label, you need to use the basic syntax for querying metrics and utilize the appropriate label matchers. Here’s how to construct a q...
How to Persist Data in Prometheus Running in a Docker Container?
Persisting data in Prometheus while running it in a Docker container is crucial to ensure that your metrics data is not lost when the container is stopped or removed. Here’s a step-by-step guide on...
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