Move riemann conf to ansible
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riemann.config
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riemann.config
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; -*- mode: clojure; -*-
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; vim: filetype=clojure
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(logging/init {:file "riemann.log"})
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; Listen on the local interface over TCP (5555), UDP (5555), and websockets
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; (5556)
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(let [host "0.0.0.0"]
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(tcp-server {:host host})
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(udp-server {:host host})
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(ws-server {:host host}))
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; ;Start a Graphite server on the usual TCP port for Carbon, port 2004:
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(def graphite-server-tcp (graphite-server :host "0.0.0.0" :port 2004
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:protocol :tcp
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:parser-fn
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(fn [{:keys [service] :as event}]
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(let [[source hostname metricname] (clojure.string/split service #"\." 3)]
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{:host (clojure.string/replace hostname #"_" ".")
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:service metricname
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:metric (:metric event)
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:tags source
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:time (:time event)
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:ttl 30}))))
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; Like the graphite-server-tcp function above, but listening for UDP packets instead of TCP:
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(def graphite-server-udp (graphite-server :host "0.0.0.0" :port 2004
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:protocol :udp
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:parser-fn
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(fn [{:keys [service] :as event}]
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(let [[source hostname metricname] (clojure.string/split service #"\." 3)]
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{ :host (clojure.string/replace hostname #"_" ".")
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:service metricname
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:metric (:metric event)
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:tags source
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:time (:time event)
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:ttl 30}))))
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; Expire old events from the index every 5 seconds.
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(periodically-expire 5)
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(let [index (index)]
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; Inbound events will be passed to these streams:
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(streams
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(where (service #"e.+ .+x bytes")
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(scale 1/1048576 index)
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(else
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(default :ttl 60
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; Index all events immediately.
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index
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; Log expired events.
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(expired
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(fn [event] (info "expired" event))))))))
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; ------------------------------------------------------------------------------
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; STREAM ADDITIONS
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(defn add-stream-by [service-name f suffix]
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(let [index (index)]
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(streams
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(where (service service-name)
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(coalesce
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(smap f
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(with {:service service-name
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:host (str "Aggregator " suffix)} index)))))))
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(defn add-sum-stream [service-name]
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(add-stream-by service-name folds/sum "sum"))
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(defn add-min-stream [service-name]
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(add-stream-by service-name folds/minimum "min"))
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(defn add-max-stream [service-name]
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(add-stream-by service-name folds/maximum "max"))
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(defn add-mean-stream [service-name]
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(add-stream-by service-name folds/mean "mean"))
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(defn add-median-stream [service-name]
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(add-stream-by service-name folds/median "median"))
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(defn add-count-stream [service-name]
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(add-stream-by service-name folds/count "count"))
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(defn add-all-grouping-streams [service-name]
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(add-sum-stream service-name)
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(add-min-stream service-name)
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(add-max-stream service-name)
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(add-mean-stream service-name)
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(add-median-stream service-name)
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(add-count-stream service-name))
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; this create the service "haarp nb sum",
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; the sum on all hosts of the 'haarp nb' metrics
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(add-sum-stream "haarp nb")
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(add-sum-stream "haarp events")
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; helper for supercell
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(defn add-aggregates-for-supercell [env]
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(doall
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(map
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(fn [source]
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(add-sum-stream (str "supercell " env " " source " nb") )
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(add-sum-stream (str "supercell " env " " source " msg"))
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(add-max-stream (str "supercell " env " " source " latency")))
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["twitter" "facebook"])))
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; helper for lightning
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(defn add-aggregates-for-lightning [env]
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(doall
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(map (fn [server-kind]
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(add-sum-stream (str "lightning " env " " server-kind " nb" ))
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(add-max-stream (str "lightning " env " " server-kind " total"))
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(add-mean-stream (str "lightning " env " " server-kind " total"))
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(add-median-stream (str "lightning " env " " server-kind " total")))
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["public" "admin" "system"])))
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(doall
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(map (fn [env]
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(add-aggregates-for-supercell env)
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(add-aggregates-for-lightning env))
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["dev" "pp" "prod"]))
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; WARN: should be deprecated post v0.3.0
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(add-sum-stream "supercell prod nb")
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(add-sum-stream "supercell prod msg")
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(add-max-stream "supercell prod latency")
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; /WARN
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; ------------------------------------------------------------------------------
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;; -- ALERTING
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(def notify-sysadmin-team
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(let [email (mailer {:from "riemann@vigiglobe.com"})]
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(throttle 1000 3600 (rollup 5 3600 (email "dreamteam@vigiglobe.com")))))
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;; Basic alerting. You generally don't want this
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; (streams (where (state "critical")) alert-everyone)
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(defn critial-fraction [service-name warn-threshold critial-threshold events]
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(let [nb-events (count events)
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nb-critical-events (count (filter #(= "critical" (:state %)) events))
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fraction (if (= nb-events 0) 0 (/ nb-critical-events nb-events))]
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{:service (str "fail " service-name)
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:host "MCP"
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:metric fraction
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:time (:time (first events))
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:state (condp <= fraction
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critial-threshold "critical"
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warn-threshold "warning"
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"ok")}))
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(defn alert-if-critical-too-long-with-thresholds
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[service-name nb-sec warn-threshold critial-threshold]
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(let [index (index)]
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(streams
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(where (service service-name)
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(fixed-time-window
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nb-sec
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(smap #(critial-fraction service-name warn-threshold critial-threshold %)
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(where (state "critical")
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index
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notify-sysadmin-team)))))))
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(defn alert-if-critical-too-long-with-thresholds-for-host
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[service-name host-regex nb-sec warn-threshold critial-threshold]
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(let [index (index)]
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(streams
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(where (and (service service-name)
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(host host-regex))
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(fixed-time-window
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nb-sec
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(smap #(critial-fraction service-name warn-threshold critial-threshold %)
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(where (state "critical")
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index
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notify-sysadmin-team)))))))
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(defn alert-if-critical-too-long [service-name nb-sec]
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(alert-if-critical-too-long-with-thresholds service-name nb-sec 0.3 0.9))
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; ------------------------------------------------------------------------------
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; Alert everybody if 'supercell prod twitter nb' is critical for 30 seconds
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(alert-if-critical-too-long "supercell prod twitter nb" 30)
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(alert-if-critical-too-long "supercell prod facebook nb" 30)
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(alert-if-critical-too-long "haarp nb" 30)
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(alert-if-critical-too-long-with-thresholds-for-host
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"kafka message/sec" "tornado" 10 0.1 0.9)
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(alert-if-critical-too-long "cpu" 120)
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(alert-if-critical-too-long "load" 120)
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(alert-if-critical-too-long "memory" 120)
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(alert-if-critical-too-long "disk /" 120)
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(def graph (graphite {:host "localhost"}))
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(streams graph)
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