prometheus query return 0 if no data

We could run this PromQL query: http_requests_total{host="10.2.0.4", path="/api"} It would return the following data: the following query will return max CPU-0 value for last minute: max_over_time(collectd_cpu{cpu='0'}[1m]) You can experiment with Prometheus queries directly in its web UI at localhost:9090/graph: Scraping targets. Without that combination there's no way to match the capacity all the way back up to the node and you get a very ugly table. Monitoring Kubernetes With Prometheus: Made Simple Better Prometheus rate() Function with VictoriaMetrics Prometheus query examples for monitoring Kubernetes - Sysdig Today, let's look a bit closer at the two ways of selecting data in PromQL: instant vector selectors and range vector selectors. Prometheus will run our query looking . In the Monitoring navigation pane, click Managed Prometheus. Using functions and time ranges can do some crazy stuff. Open the panel inspector and then click the Query tab. If a single query return would too many data points, prometheus simply won't fully execute it. from -> from + interval. Collecting Prometheus Metrics with Azure Monitor - samcogan.com And, a list of operations to perform such as- sum, max, min, deviation, etc. If you don't enter a display name, then the . Look at the node_network_receive_bytes_total metrics in this example. Run Prometheus at home in a container | Opensource.com The problem is that the table is also showing reasons that happened 0 times in the time frame and I don't want to display them. Explanation: Prometheus uses label. the following query will return max CPU-0 value for last minute: max_over_time(collectd_cpu{cpu='0'}[1m]) You can experiment with Prometheus queries directly in its web UI at localhost:9090/graph: Scraping targets. Well by definition you can't return anything if there are no records. Here's a sample query to view Prometheus metrics from the default kubernetes namespace. This is how you refer to the data source in panels and queries. This method takes as input a string which will be sent as a query to the specified Prometheus Host. Spring Boot actuator end point for the Prometheus server. How to return Null or value when nothing is returned from Query NOTE: These API endpoints may return metadata for series for which there is no sample within the selected time range, and/or for series whose samples have been marked as deleted via the deletion API endpoint. In this you can see no data because and operator while vector to vector matching. Prometheus returns incorrect data when using offset queries I'm querying metrics with offset and it looks like it's not working as expected. Originally developed at SoundCloud and now part of the Cloud Native Computing Foundation, Prometheus is typically used to monitor software and services deployed in infrastructure fabric like Kubernetes. Querying basics | Prometheus Prometheus Cheat Sheet - How to Join Multiple Metrics (Vector Matching) Then, click the Execute button.

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