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m3
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
src
m3
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Prometheus federation or Thanos?
M3DB.
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Grafana Mimir – 1B active series TSDB
> I can't find any other open source time series database except Mimir/Cortex which allows this much scale (clustering options in their open source version)
The following open source time series databases also can scale horizontally to many nodes:
- Thanos - https://github.com/thanos-io/thanos/
- M3 - https://github.com/m3db/m3
- Cluster version of VictoriaMetrics - https://docs.victoriametrics.com/Cluster-VictoriaMetrics.htm... (I'm CTO at VictoriaMetrics)
> Can we use Prometheus/Mimir as general purpose time series database?
This depends on what do you mean under "general purpose time series database". Prometheus/Mimir are optimized for storing (timestamp, value) series where timestamp is a unix timestamp in milliseconds and value is a floating-point number. Each series has a name and can have arbitrary set of additional (label=value) labels. Prometheus/Mimir aren't optimized for storing and processing series of other value types such as strings (aka logs) and complex datastructures (aka events and traces).
So, if you need storing time series with floating-point values, then Prometheus/Mimir may be a good fit. Otherwise take a look at ClickHouse [1] - it can efficiently store and process time series with values of arbitrary types.
[1] https://clickhouse.com/
What are some alternatives?
VictoriaMetrics - VictoriaMetrics: fast, cost-effective monitoring solution and time series database
mimir - Grafana Mimir provides horizontally scalable, highly available, multi-tenant, long-term storage for Prometheus.
Trickster - Open Source HTTP Reverse Proxy Cache and Time Series Dashboard Accelerator
thanos - Highly available Prometheus setup with long term storage capabilities. A CNCF Incubating project.
ClickHouse - ClickHouse® is a free analytics DBMS for big data
cortex - A horizontally scalable, highly available, multi-tenant, long term Prometheus.
dskit - Distributed systems kit
swagger-editor - Swagger Editor
prometheus - The Prometheus monitoring system and time series database.