node_exporter
httpd_exporter
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node_exporter | httpd_exporter | |
---|---|---|
78 | 1 | |
10,281 | 1 | |
3.0% | - | |
8.9 | 0.0 | |
1 day ago | almost 3 years ago | |
Go | Python | |
Apache License 2.0 | MIT License |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
node_exporter
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Prometheus Fundamentals (Lesson-01)
$ wget https://github.com/prometheus/node_exporter/releases/download/v1.7.0/node_exporter-1.7.0.linux-amd64.tar.gz $ tar -xzvf node_exporter-1.7.0.linux-amd64.tar.gz
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List of your reverse proxied services
Node Exporter
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Best way to monitor disk space, RAM in remote servers and get alerts when full?
The Prometheus node_exporter can provide this information, doesn't require root. You could run it as a systemd user unit if you don't have root.
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Best Course/Learning Path for mastering Prometheus and Grafana
I personally find it best to learn through experimentation. Start with reading a bit about Prometheus and Grafana through their docs, and then familiarise yourself with setting up a local Prometheus + Grafana instance either locally or with docker using docker-compose, along with something to generate /metrics endpoint for Prometheus to scrape from such as a custom Prometheus exporter in Python or using Node Exporter.
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Linux Traffic Monitoring
Your best bet might be to fork node_exporter to get you more verbose socket stats: https://github.com/prometheus/node_exporter/blob/master/collector/sockstat_linux.go
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Tool to monitor disk space
I use Grafana + Prometheus + Node Exporter.
- Is there a dashboard of sorts that can keep track of my linux-based computers and VMs to that I can easily see if any of them have updates or are running low on storage and et cetera?
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Would SNMP present less of a load than SSH to get interface metrics from older cisco 3K series switches?
Crazy idea, can't NX devices run Docker? I wonder if the node_exporter would work.
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Questions about Kubernetes
Kubernetes itself will not notify you, the way I've seen people do this, is to use something like kube-state-metrics or node_exporter, export that to Prometheus (or preferrably VictoriaMetrics because Prometheus is terrible IMO), and then setup alarms on that with alertmanager or equivalent, or just look at dashboards regularly with Grafana. Realistically I recommend only setting alerts on disk usage and application/database latency. CPU and memory utilization isn't a great metric to alert on a lot of the time.
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How to log system usage: RAM, CPU, over a long time to detect which component is slowing down?
You may setup node exporter and collect metrics with prometheus for example. Its not quite "simple" way, but still you may find it useful.
httpd_exporter
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Building a Prometheus Exporter
If you run the script, it will start the server at http://localhost:8000 The collected metrics will show up there. Setup Prometheus to scrape the endpoint. Over time, Prometheus will build the time-series for the metrics collected. Setup Grafana to visualize the data within Prometheus.
What are some alternatives?
cadvisor - Analyzes resource usage and performance characteristics of running containers.
client_python - Prometheus instrumentation library for Python applications
process-exporter - Prometheus exporter that mines /proc to report on selected processes
Netdata - The open-source observability platform everyone needs
ping_exporter - Prometheus exporter for ICMP echo requests using https://github.com/digineo/go-ping
fortigate_exporter - Prometheus exporter for Fortigate firewalls
windows_exporter - Prometheus exporter for Windows machines
prometheus - The Prometheus monitoring system and time series database.
node-exporter-textfile-collector-scripts - Scripts for node-exporter's textfile collector
yet-another-cloudwatch-exporter - Prometheus exporter for AWS CloudWatch - Discovers services through AWS tags, gets CloudWatch metrics data and provides them as Prometheus metrics with AWS tags as labels
filestat_exporter - Prometheus exporter gathering metrics about file size, modification time and other stats
Telegraf - The plugin-driven server agent for collecting & reporting metrics.