Tag Archives: Grafana

Kubernetes: a “Detective Work” with the OOM Killer, Linux cgroups, and cAdvisor container_memory
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29 October 2026

We ran into a pretty standard OOM Killer issue in Kubernetes. I thought I would take a quick look – but somehow it “suddenly” turned into a pretty decent post. What made it even better is that I hadn’t dug into things like Linux OOM Killer, cgroups, memory types and Kubernetes limits myself for quite… Read More: Kubernetes: a “Detective Work” with the OOM Killer, Linux cgroups,… »

AI: LLM Spend Control with LiteLLM Budgets and OpenAI Limits
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24 September 2026

The main goal we had when introducing LiteLLM AI Gateway on the project (see LiteLLM: AI Gateway for LLMs – features overview) was access and cost control, because right now we can’t enable auto-recharge for our OpenAI or OpenRouter account: our startup is still in the development and experimentation stage, developers actively use AI agents… Read More: AI: LLM Spend Control with LiteLLM Budgets and OpenAI Limits0… »

VictoriaTraces: Recording Rules, Metrics, and Alerts from Trace Spans
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22 May 2026

VictoriaTraces – just like VictoriaLogs – supports Recording Rules (see VictoriaMetrics: Recording Rules for AWS Load Balancer logs) for traces, because traces are essentially the same logs, just structured differently. And since we have Recording Rules – we can build metrics out of logs for alerts and Grafana dashboards. Although this actually isn’t the best… Read More: VictoriaTraces: Recording Rules, Metrics, and Alerts from Trace Spans0 (0) »

VictoriaTraces: Tracing, Observability, and OpenTelemetry
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19 May 2026

On the project, we’ve gradually grown to the point where it’s time to have proper tracing – to build real observability, not just monitoring. A long time ago I did something similar with Jaeger – a monster, and it kind of stayed in my drafts from 2019 or 2020. Since right now our entire stack… Read More: VictoriaTraces: Tracing, Observability, and OpenTelemetry0 (0) »

VictoriaMetrics: Basic Monitoring for AWS, Linux, NGINX, and PHP
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28 March 2026

The RTFM migration from DigitalOcean to AWS went smoothly, and I’m gradually settling in. New infrastructure, everything new – so for the first while I want to keep a close eye on the server and blog state, which means setting up basic monitoring for WordPress: NGINX, PHP-FPM, the database, and the infrastructure running it all.… Read More: VictoriaMetrics: Basic Monitoring for AWS, Linux, NGINX, and PHP5 (1) »

Okta: Configuring Grafana SSO with OIDC and Role Mapping
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27 March 2026

We finally “grew up” to using Okta on the current project, so there’s a short series of posts coming up on it. I wrote about Okta before, but that was 5-6 years ago, and there have been some interesting changes since then (see the #okta tag). Today we’ll be configuring SSO login via Okta for… Read More: Okta: Configuring Grafana SSO with OIDC and Role Mapping5 (1) »

FreeBSD: Home NAS, part 11 – extended monitoring with additional exporters
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10 February 2026

In the previous post FreeBSD: Home NAS, part 10 – monitoring with VictoriaMetrics and Grafana, we configured VictoriaMetrics, node_exporter, Grafana and created a basic dashboard and basic alerts. Now, I want to add a bit more monitoring – to see process CPU/RAM data, SMART information, and ZFS details. Everything written here has been added to… Read More: FreeBSD: Home NAS, part 11 – extended monitoring with additional… »

FreeBSD: Home NAS, part 10 – monitoring with VictoriaMetrics and Grafana
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7 February 2026

Finally got around to monitoring. I was interested in running a standard stack with VictoriaMetrics + Grafana + Alertmanager not in the usual Kubernetes with a Helm chart, but simply on the host. However, the approach is the same as monitoring services in AWS/Kubernetes – on FreeBSD, we will have VictoriaMetrics for metrics, Grafana for… Read More: FreeBSD: Home NAS, part 10 – monitoring with VictoriaMetrics and… »

AWS: Monitoring AWS OpenSearch Service cluster with CloudWatch
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1 November 2025

Let’s continue our journey with AWS OpenSearch Service. What we have is a small AWS OpenSearch Service cluster with three data nodes, used as a vector store for AWS Bedrock Knowledge Bases. Previous parts: AWS: Introduction to OpenSearch Service as a vector store AWS: Creating an OpenSearch Service cluster and configuring authentication and authorization Terraform:… Read More: AWS: Monitoring AWS OpenSearch Service cluster with CloudWatch0 (0) »

Vector.dev: introduction, AWS S3 logs, and integration with VictoriaLogs
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21 December 2024

So, we’re back to the topic of AWS VPC Flow Logs, VictoriaLogs, and the Grafana dashboard. In the post VictoriaLogs: a Grafana dashboard for AWS VPC Flow Logs – migrating from Grafana Loki, we created a cool dashboard to display various statistics on AWS NAT Gateway traffic. But there is a small drawback: all the… Read More: Vector.dev: introduction, AWS S3 logs, and integration with VictoriaLogs0 (0) »