Grafana is good for a web interface for metric graphs https://grafana.com/ we use it at work with Metrictank on the back end. Graphite is an alternate back end.

For log analysis you can use fluentd or logstash to gather logs along with ElasticSearch and Kibana to provide a web interface. I don't have as much experience with this as my last few employers have used Splunk for logs.

On Sat, 15 Feb 2020 at 13:57, Russell Coker via luv-main <luv-main@luv.asn.au> wrote:

Whats a good FOSS log analysis system? I'm after something that will
aggregate the logs of multiple systems and give results on demand through a
web interface and allow alerts to be propagated to a monitoring system.

Also what's a good FOSS system for graphing all the metrics of a system
(network use, disk IO, CPU use, and arbitrary other metrics? Ideally I'd like
something like what Datadog does with a web interface that shows multiple
graphs and allows easy comparing of the values from multiple graphs at the
same point in time.

--
My Main Blog http://etbe.coker.com.au/
My Documents Blog http://doc.coker.com.au/

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