How to find out the number of time series stored in Prometheus LevelDB

monitoringprometheussystem-monitoring

i'm responsible for maintaining the Prometheus servers in our company. The metrics however are provided by the teams.

Is there a way to find out the number of time series stored in the Prometheus datadase? We are using the default LevelDB data storage.
I need these values to find out if i need to tweak the local storage settings of our Prometheus instances.

Thanks for your help.

Best Answer

prometheus_tsdb_head_series

Just because I always forget and have to Google this, and this question is at the top. As per this answer there will likely be a variance between prometheus_tsdb_head_series & count({__name__=~".+"}) because of variations in what they consider "active", but unless you have a large variability in metric count, I'd recommend prometheus_tsdb_head_series because if you have a lot of metrics, it's a lot faster to query.

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