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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Also, what would be the proper way to truncate the db?
I tried setting the retention period to 1h to clear old data but I cant see disk space shrinking even though it says "Your last call to change retention period to 1 hr was successful.".

&gt; Is there some way to aggregate this data after some time to not keep all traces?
We already do this and calculate all RED metrics that power the `Services` tab.

&gt; Or is the proper way to use another sampler when collecting traces?
By collecting traces, I imagine you are referring to HEAD, which can be very inflexible sometimes because the important trace could not have been sampled in the beginning.

&gt; what would be the proper way to truncate the db
Truncate the individual tables.

&gt; I tried setting the retention period to 1h to clear old data but I cant see disk space shrinking even though it says "Your last call to change retention period to 1 hr was successful."
IIRC it is a day precision because mutations are costly and doing them often only leads to unnecessary complications.