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Collecting metrics with
Prometheus and
VictoriaMetric
Aliaksandr Valialkin, VictoriaMetrics
Let me introduce myself
● VictoriaMetrics founder and core developer
● Fasthttp creator
● Fond of performance optimizations
What is Prometheus?
● The most popular monitoring system
● Metrics’ collector
● Time Series DB
● Rules evaluator and alert...
What Prometheus can do?
● Collecting metrics from pre-configured targets
● Storing metrics in the local and remote DBs
● E...
Ruby + Prometheus
● https://github.com/reinh/statsd +
https://github.com/prometheus/statsd_exporter
● https://github.com/p...
https://github.com/reinh/statsd usage
# Set up a global Statsd client for a server on localhost:9125
$statsd = Statsd.new ...
Local DB issues in Prometheus
● Doesn’t scale outside the node
● Has limited size and retention (15 days)
Remote DB to rescue
● Remote DB may transparently scale to many nodes
● Remote DB may deal better with big retentions
● Re...
What is VictoriaMetrics?
● Long-term remote storage for Prometheus
● Single-node version is available at
https://github.co...
VictoriaMetrics features
● Fast and cost-effective - see articles at https://medium.com/@valyala
● Easy to operate - just ...
Questions?
Collecting metrics with Prometheus and VictoriaMetrics - Aliaksandr Valialkin  (RUS) | Ruby Meditation 26
Collecting metrics with Prometheus and VictoriaMetrics - Aliaksandr Valialkin  (RUS) | Ruby Meditation 26
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Collecting metrics with Prometheus and VictoriaMetrics - Aliaksandr Valialkin (RUS) | Ruby Meditation 26

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Speech of Aliaksandr Valialkin, Founder VictoriaMetrics, at Ruby Meditation #26 Kyiv 16.02.2019
Next conference - http://www.rubymeditation.com/

Prometheus is a popular solution for metrics' collection and alerting. But it isn't suited for storing historical data. Let's see how VictoriaMetrics resolves this issue.

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Collecting metrics with Prometheus and VictoriaMetrics - Aliaksandr Valialkin (RUS) | Ruby Meditation 26

  1. 1. Collecting metrics with Prometheus and VictoriaMetric Aliaksandr Valialkin, VictoriaMetrics
  2. 2. Let me introduce myself ● VictoriaMetrics founder and core developer ● Fasthttp creator ● Fond of performance optimizations
  3. 3. What is Prometheus? ● The most popular monitoring system ● Metrics’ collector ● Time Series DB ● Rules evaluator and alerter
  4. 4. What Prometheus can do? ● Collecting metrics from pre-configured targets ● Storing metrics in the local and remote DBs ● Executing queries against metrics stored in the DB ● Sending alerts on pre-configured rules ● Helping to build nice dashboards in Grafana
  5. 5. Ruby + Prometheus ● https://github.com/reinh/statsd + https://github.com/prometheus/statsd_exporter ● https://github.com/prometheus/client_ruby - hard to use properly due to support pre-fork (unicorn) servers issue
  6. 6. https://github.com/reinh/statsd usage # Set up a global Statsd client for a server on localhost:9125 $statsd = Statsd.new 'localhost', 9125 # Send some stats $statsd.increment 'garets' $statsd.timing 'glork', 320 $statsd.gauge 'bork', 100 # Use {#time} to time the execution of a block $statsd.time('account.activate') { @account.activate! } # Create a namespaced statsd client and increment 'account.activate' statsd = Statsd.new('localhost').tap{|sd| sd.namespace = 'account'} statsd.increment 'activate'
  7. 7. Local DB issues in Prometheus ● Doesn’t scale outside the node ● Has limited size and retention (15 days)
  8. 8. Remote DB to rescue ● Remote DB may transparently scale to many nodes ● Remote DB may deal better with big retentions ● Remote DB may collect and query data from multiple Prometheus instances ● Remote storages for Prometheus - https://prometheus.io/docs/operating/integrations/#remote-endpoints- and-storage
  9. 9. What is VictoriaMetrics? ● Long-term remote storage for Prometheus ● Single-node version is available at https://github.com/VictoriaMetrics/VictoriaMetrics/wiki/Single-server-VictoriaMetrics ● SaaS is in progress at https://victoriametrics.com ● There is SaaS playground at https://play.victoriametrics.com/signIn
  10. 10. VictoriaMetrics features ● Fast and cost-effective - see articles at https://medium.com/@valyala ● Easy to operate - just a single executable without dependencies ● Supports PromQL - native query language for Prometheus ● Accepts metrics in InfluxDB and Graphite formats
  11. 11. Questions?

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