node_exporter
postgres_exporter
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node_exporter | postgres_exporter | |
---|---|---|
78 | 15 | |
10,231 | 2,527 | |
2.5% | 3.0% | |
8.9 | 8.1 | |
4 days ago | 18 days ago | |
Go | Go | |
Apache License 2.0 | Apache License 2.0 |
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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.
postgres_exporter
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💻 7 Open-Source DevTools That Save Time You Didn't Know to Exist ⌛🚀
🌟 Support on GitHub Website: http://prometheus.io/community
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Tools to inspect/audit Postgres DBs
An easy way forward would be to export it as a metric through something like https://github.com/prometheus-community/postgres_exporter and then set up an alert on the metric reporting >= 1.
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How to integrate coroot-pg-agent with prometheus
We use postgres as RDBMS for our database needs and if you guys are already using postgres_exporter(https://github.com/prometheus-community/postgres_exporter) for exporting PostgreSQL server metrics to prometheus, then you can surely give coroot-pg-agent a try.
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Pg-agent – a Postgres exporter for Prometheus focusing on query performance statistics
It’s not that simple…https://github.com/prometheus-community/postgres_exporter :)
- Given an ansible playbook, how do I "execute" it on a server?
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Tips for a Healthier Postgres Database
New server and want a basic config for a production server? (I'm assuming brand new app here, no prior monitoring and knowledge on what to tune.)
Use this to get the values you need https://pgtune.leopard.in.ua/#/ .
This saved me a lot of headaches, and it just gets the server into a good enough state from which you can observe and optimise later.
I'd also add in monitoring early, add a Prometheus exporter https://github.com/prometheus-community/postgres_exporter and alerts https://awesome-prometheus-alerts.grep.to/rules#postgresql . There are a few Grafana dashboards available for the prometheus exporter, start with those.
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Prometheus exporter preference: postgres_exporter vs pg_exporter?
I’m setting up some monitoring for a PostgreSQL instance and came across two seemingly mature projects for Prometheus monitoring, those being postgres_exporter and pg_exporter . From the outside it looks like postgres_exporter is linked from the Prometheus pages, but has fewer recent updates, and pg_exporter has a smaller user base but a more active development community.
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Top PostgreSQL monitoring metrics for Prometheus – Includes cheat sheet
PostgreSQL monitoring with Prometheus is an easy thing to do thanks to the PostgreSQL Exporter.
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PostgreSQL vs Prometheus
Thanks, that is probably a better fit. I was looking to use this part of the PostgreSQL exporter: https://github.com/prometheus-community/postgres_exporter/blob/master/queries.yaml and just not care about the metrics about Postgres itself.
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Custom healthcheck and alerting tool
The postgres_exporter provides the data about the state of replication. Then you have rules like these to validate the data.
What are some alternatives?
cadvisor - Analyzes resource usage and performance characteristics of running containers.
pg_exporter - postgres exporter for prometheus
process-exporter - Prometheus exporter that mines /proc to report on selected processes
coroot-pg-agent - A Prometheus exporter for Postgres focusing on query performance statistics
Netdata - The open-source observability platform everyone needs
runbooks
ping_exporter - Prometheus exporter for ICMP echo requests using https://github.com/digineo/go-ping
supabase - The open source Firebase alternative.
fortigate_exporter - Prometheus exporter for Fortigate firewalls
Trickster - Open Source HTTP Reverse Proxy Cache and Time Series Dashboard Accelerator
windows_exporter - Prometheus exporter for Windows machines
PgHero - A performance dashboard for Postgres