The tool may be great, but the title leaves me skeptical of anything else.

From: https://github.com/uptrace/uptrace/blob/master/LICENSE

Business Source License 1.1

Parameters

Licensor: Uptrace Licensed Work: Uptrace The Licensed Work is (c) 2021 Uptrace Additional Use Grant: You may make use of the Licensed Work, provided that you may not use the Licensed Work for a Tracing and Metrics Service.

                      A "Tracing and Metrics Service" is a commercial offering
                      that allows third parties (other than your employees and
                      contractors) to access the functionality of the
                      Licensed Work so that such third parties directly benefit
                      from the tracing and metrics of the Licensed Work.

IMO the reason these vendors can and do charge so much is not because telemetry software is hard. Its because managing data at large volumes is incredibly challenging.

No matter what solution you pick, you're going to hit scaling issues eventually. Sure you can start with a single instance, but eventually you're going to need to shard, backup, replicate, etc... If you're running a saas business with uptime expectations from your customers then your telemetry systems need to be rock solid.

This means either paying through the nose for a system that is mostly going to work. Or spinning up a team of engineers to active manage and operate your telemetry systems, and then spending years making your system rock solid.

Managing these systems is a challenging problem and its not one that most software engineers want to do or will enjoy. So its difficult to find the right people.

In v1.4 release Uptrace got built-in alerting capabilities that allow to monitor metrics, manage alerts, and receive notifications without using AlertManager. But AlertManager is still supported.

While OpenTelemetry remains to be the main source of telemetry data, Uptrace also provides integrations for Prometheus metrics, Vector logs, FluentBit, Sentry, and CloudWatch.

You can quickly try Uptrace by:

- Running a Docker example: https://github.com/uptrace/uptrace/tree/master/example/docke...

- Checking Uptrace Cloud demo: https://app.uptrace.dev/play

If you have any feedback or questions, let me know in the comments!

We also recently spoke about how we leverage Clickhouse to build out our APM solution on top on Jaeger traces: https://www.youtube.com/watch?v=19smsahx7Xg

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Disclaimer: I work at OpsVerse, and we're big fans of UpTrace (and other OSS O11y tools)

My team absolutely could do this in-house, but it would be a distraction day-to-day and potentially a disaster when dealing with a crisis.

- is the metrics query language 100% compatible with PromQL or people will need to learn something new? - can logs / metrics / traces be visualized by some external app like Grafana?

- speaking of which, how does it compare to GrafanaLabs solutions (Loki/Tempo/Mimir)?

- how "plug and play" would be in a system using Prometheus+Thanos for metrics and Filebeat+Logsatsh+ElasticSearch for logs? EDIT: scratch that, there is enough doc on the website about this

Thanks!