SigNoz is an open-source APM. It helps developers monitor their applications & troubleshoot problems, an open-source alternative to DataDog, NewRelic, etc.

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How do metrics, traces, and logs link up together. Like if I am looking at a host and click logs or traces, nothing shows up. Do certain resource values have to match?

try example guide <https://signoz.io/docs/logs-management/send-logs/nodejs-winston-logs/#collecting-nodejs-logs-when-application-is-deployed-on-docker-or-kubernetes>

Its working oke for me