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riemann-config/main.clj
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; -*- mode: clojure; -*- | |
; vim: filetype=clojure | |
(require '[clj-http.client :as client] | |
'[cheshire.core :as json] | |
'[riemann.query :as query]) | |
(def hostname (.getHostName (java.net.InetAddress/getLocalHost))) | |
(include "alerta.clj") | |
; configure the various servers that we listen on | |
(tcp-server :host "0.0.0.0") | |
(udp-server :host "0.0.0.0") | |
(ws-server :host "0.0.0.0") | |
(repl-server) | |
(graphite-server :host "0.0.0.0" | |
:protocol :tcp | |
:parser-fn (fn [{:keys [service] :as event}] | |
(if-let [[source metric] | |
(clojure.string/split service #"\." 2)] | |
(case source | |
"fastly" (if-let [[domain service] (clojure.string/split metric #"\." 2)] | |
{:host domain | |
:service service | |
:metric (:metric event) | |
:origin "Fastly" | |
:environment "PROD" | |
:resource domain | |
:type "graphiteAlert" | |
:time (:time event) | |
:tags [source] | |
}) | |
"cloudwatch" (if-let [[account & metric] (clojure.string/split metric #"\.")] | |
(let [host (clojure.string/join ":" (butlast metric))] | |
{:host host | |
:service (last metric) | |
:metric (:metric event) | |
:origin (clojure.string/capitalize account) | |
:environment "PROD" ; FIXME - use "stage" if available | |
:resource host | |
:type "graphiteAlert" | |
:time (:time event) | |
:tags (into [source account] metric) | |
:ttl 600 ; metrics gathered every 5 minutes | |
})))))) | |
(defn parse-stream | |
[& children] | |
(fn [e] (let [new-event (assoc e | |
:host (str (:ip e) ":" (:host e)) | |
:resource (:host e) | |
:type "gangliaAlert")] | |
(call-rescue new-event children)))) | |
(defn log-info | |
[e] | |
(info e)) | |
; reap expired events every 10 seconds | |
(periodically-expire 10 {:keep-keys [:host :service :environment :resource :grid :cluster :ip :tags :metric :index-time]}) | |
; some helpful functions | |
(defn now [] | |
(Math/floor (unix-time))) | |
(defn switch-epoch-to-elapsed | |
[& children] | |
(fn [e] ((apply with {:metric (- (now) (:metric e))} children) e))) | |
(defn state-to-metric | |
[& children] | |
(fn [e] ((apply with {:metric (:state e)} children) e))) | |
(defn event-to-cluster-event | |
[& children] | |
(fn [e] ((apply with {:service "cluster heartbeat" | |
:host (str (:environment e) ":" (:cluster e)) | |
:resource (:cluster e)} children) e))) | |
(defn event-to-grid-event | |
[& children] | |
(fn [e] ((apply with {:service "grid heartbeat" | |
:host (str (:environment e) ":" (:grid e)) | |
:resource (:grid e) | |
:cluster "n/a"} children) e))) | |
(defn lookup-metric | |
[metricname & children] | |
(let [metricsymbol (keyword metricname)] | |
(fn [e] | |
(let [metricevent (.lookup (:index @core) (:host e) metricname)] | |
(if-let [metricvalue (:metric metricevent)] | |
(call-rescue (assoc e metricsymbol metricvalue) children)))))) | |
; set of severity functions | |
(defn severity | |
[severity message & children] | |
(fn [e] ((apply with {:state severity :description message} children) e))) | |
(def informational (partial severity "informational")) | |
(def normal (partial severity "normal")) | |
(def warning (partial severity "warning")) | |
(def minor (partial severity "minor")) | |
(def major (partial severity "major")) | |
(def critical (partial severity "critical")) | |
(defn edge-detection | |
[samples & children] | |
(let [detector (by [:host :service] (runs samples :state (apply changed :state children)))] | |
(fn [e] (detector e)))) | |
(defn set-resource-from-cluster [e] (assoc e :resource (:cluster e))) | |
(defn proportion | |
[events] | |
(when-let [event (first events)] | |
(try | |
(riemann.folds/fold-all (fn [a b] (/ a (+ a b))) events) | |
(catch NullPointerException ex | |
(merge event :metric nil))))) | |
; thresholding | |
(let [index (default :ttl 900 (index)) | |
alert (async-queue! :alerta {:queue-size 10000} | |
(alerta {})) | |
dedup-alert (edge-detection 1 log-info alert) | |
dedup-2-alert (edge-detection 2 log-info alert) | |
dedup-4-alert (edge-detection 4 log-info alert) | |
graph (async-queue! :graphite {:queue-size 1000} | |
(graphite {:host "graphite" | |
:path (fn [e] (str "riemann." (riemann.graphite/graphite-path-basic e)))}))] | |
(streams | |
(with :index-time (format "%.0f" (now)) | |
(where (service "heartbeat") | |
(parse-stream | |
(with :ttl 300 index)) | |
(event-to-cluster-event | |
(with {:event "ClusterHeartbeat" :group "Ganglia" :type "gangliaAlert" :ttl 180} | |
(switch-epoch-to-elapsed | |
(where (< metric 20) | |
(normal "Heartbeat from Ganglia cluster is OK" dedup-alert))) index)) | |
(event-to-grid-event | |
(with {:event "GridHeartbeat" :group "Ganglia" :type "gangliaAlert" :ttl 120} | |
(switch-epoch-to-elapsed | |
(where (< metric 20) | |
(normal "Heartbeat from Ganglia grid is OK" dedup-alert))) index)) | |
(else | |
index)))) | |
(streams | |
(throttle 1 30 heartbeat)) | |
; (streams | |
; (let [hosts (atom #{})] | |
; (fn [event] | |
; (swap! hosts conj (:host event)) | |
; (index {:service "unique hosts" | |
; :time (unix-time) | |
; :metric (count @hosts)}) | |
; ((throttle 1 10 graph) {:service "riemann unique_hosts" | |
; :host hostname | |
; :time (unix-time) | |
; :metric (count @hosts)})))) | |
; (streams | |
; (let [metrics (atom #{})] | |
; (fn [event] | |
; (swap! metrics conj {:host (:host event) :service (:service event)}) | |
; (index {:service "unique services" | |
; :time (unix-time) | |
; :metric (count @metrics)}) | |
; ((throttle 1 10 graph) {:service "riemann unique_services" | |
; :host hostname | |
; :time (unix-time) | |
; :metric (count @metrics)})))) | |
(streams | |
(expired | |
(match :service "heartbeat" | |
(with {:event "AgentHeartbeat" :group "Ganglia" :type "gangliaAlert"} | |
(switch-epoch-to-elapsed | |
(minor "No heartbeat from Ganglia agent" dedup-alert) log-info))) | |
(match :service "cluster heartbeat" | |
(with {:event "ClusterHeartbeat" :group "Ganglia" :type "gangliaAlert"} | |
(switch-epoch-to-elapsed | |
(minor "No heartbeat from Ganglia cluster" dedup-alert) log-info))) | |
(match :service "grid heartbeat" | |
(with {:event "GridHeartbeat" :group "Ganglia" :type "gangliaAlert"} | |
(switch-epoch-to-elapsed | |
(major "No heartbeat from Ganglia grid" dedup-alert) log-info))))) | |
(streams (parse-stream | |
(let [boot-threshold | |
(match :service "boottime" | |
(with {:event "SystemStart" :group "System"} | |
(switch-epoch-to-elapsed | |
(where (< metric 7200) (informational "System started less than 2 hours ago" dedup-alert))))) | |
heartbeat | |
(match :service "heartbeat" | |
(with {:event "AgentHeartbeat" :group "Ganglia"} | |
(switch-epoch-to-elapsed | |
(splitp < metric | |
90 (minor "Heartbeat from Ganglia agent is stale" dedup-alert) | |
(normal "Heartbeat from Ganglia agent is OK" dedup-alert))))) | |
puppet-last-run | |
(match :service "pup_last_run" | |
(where (> metric 0) | |
(with {:event "PuppetLastRun" :group "Puppet"} | |
(switch-epoch-to-elapsed | |
(splitp < metric | |
86400 (minor "Puppet has not run in more than a day" dedup-alert) ; not run in last day | |
7200 (warning "Puppet has not run in last 2 hours" dedup-alert) ; not run in last 2 hours | |
(normal "Puppet agent is running normally" dedup-alert)))) | |
(else (with {:event "PuppetLastRun" :group "Puppet"} | |
(warning "Puppet metrics are stale or broken" dedup-alert))))) | |
puppet-resource-failed | |
(match :service "pup_res_failed" | |
(with {:event "PuppetResFailed" :group "Puppet"} | |
(splitp < metric | |
0 (warning "Puppet resources are failing" dedup-alert) | |
(normal "Puppet is updating all resources" dedup-alert)))) | |
last-gumetric-collection | |
(match :service "gu_metric_last" | |
(where (> metric 0) | |
(with {:event "GuMgmtMetrics" :group "Ganglia"} | |
(switch-epoch-to-elapsed | |
(splitp < metric | |
300 (minor "Guardian management metrics not updated for 5 minutes or more" dedup-alert) | |
(normal "Guardian management metrics are reporting OK" dedup-alert)))) | |
(else (with {:event "GuMgmtMetrics" :group "Ganglia"} | |
(warning "Guardian management metrics are stale or broken" dedup-alert))))) | |
disk-max-util | |
(match :service "part_max_used" | |
(with {:event "DiskMaxUtil" :group "OS"} | |
(splitp < metric | |
99 (critical "Disk utilisation for highest filesystem over threshold" dedup-alert) | |
(normal "Disk utilisation for highest filesystem is under threshold" dedup-alert)))) | |
fs-util | |
(match :service #"^fs_util-" | |
(with {:event "FsUtil" :group "OS"} | |
(splitp < metric | |
95 (major "File system utilisation is very high" dedup-alert) | |
90 (minor "File system utilisation is high" dedup-alert) | |
(normal "File system utilisation is OK" dedup-alert)))) | |
inode-util | |
(match :service #"^inode_util-" | |
(with {:event "InodeUtil" :group "OS"} | |
(splitp < metric | |
95 (major "File system inode utilisation is very high" dedup-alert) | |
90 (minor "File system inode utilisation is high" dedup-alert) | |
(normal "File system inode utilisation is OK" dedup-alert)))) | |
swap-util | |
(match :service "swap_util" | |
(with {:event "SwapUtil" :group "OS"} | |
(splitp < metric | |
90 (minor "Swap utilisation is very high" dedup-alert) | |
(normal "Swap utilisation is OK" dedup-alert)))) | |
cpu-load-five | |
(by [:host] | |
(match :service "load_five" | |
(with {:event "SystemLoad" :group "OS"} | |
(lookup-metric "cpu_num" | |
(split* | |
(fn [e] (< (* 10 (:cpu_num e)) (:metric e))) (minor "System 5-minute load average is very high" dedup-alert) | |
(fn [e] (< (* 6 (:cpu_num e)) (:metric e))) (warning "System 5-minute load average is high" dedup-alert) | |
(normal "System 5-minute load average is OK" dedup-alert)))))) | |
disk-io-util | |
(match :service #"^diskio_util-" | |
(by [:host :service] | |
(stable 600 :metric | |
(with {:event "DiskIOUtil" :group "OS"} | |
(splitp < metric | |
99 (major "Disk IO utilisation is very high" dedup-alert) | |
95 (minor "Disk IO utilisation is high" dedup-alert) | |
(normal "Disk IO utilisation is OK" dedup-alert)))))) | |
r2-frontend-mode | |
(match :service "gu_currentMode_mode-r2frontend" | |
(state-to-metric | |
(with {:event "R2Mode" :service "R2" :group "Application"} | |
(where (= state "NORMAL") | |
(normal "R2 frontend mode is OK" dedup-alert) | |
(else (major "R2 frontend mode is not OK" dedup-alert)))))) | |
mysql-slave-lag | |
(match :service "mysql_slave_lag" | |
(with {:event "MySQLlag" :group "MySQL"} | |
(splitp < metric | |
14400 (major "MySQL Replication lag is very high" dedup-alert) | |
7200 (minor "MySQL Replication lag is high" dedup-alert) | |
(normal "MySQL Replication lag is OK" dedup-alert)))) | |
ntp-offset | |
(match :service "ntp_offset" | |
(with {:event "NTPOffset" :group "OS"} | |
(split | |
(or (< 10000 metric) (> -10000 metric)) (major "NTP offset is very high (±10s)" dedup-alert) | |
(or (< 2000 metric) (> -2000 metric)) (minor "NTP offset is high (±2s)" dedup-alert) | |
(normal "NTP offset is OK" dedup-alert)))) | |
content-api-host-item-request-time | |
(where* (fn [e] (and (= (:grid e) "EC2") | |
(= (:environment e) "PROD") | |
(= (:service e) "gu_item_http_time-Content-API"))) | |
(with {:event "HostItemResponseTime" :group "Application" :grid "ContentAPI"} | |
(by :resource | |
(moving-time-window 300 | |
(combine riemann.folds/mean | |
(splitp < metric | |
300 (minor "Content API host item response time is slow" dedup-alert) | |
(normal "Content API host item response time is OK" dedup-alert))))))) | |
content-api-host-search-request-time | |
(where* (fn [e] (and (= (:grid e) "EC2") | |
(= (:environment e) "PROD") | |
(= (:service e) "gu_search_http_time-Content-API"))) | |
(with {:event "HostSearchResponseTime" :group "Application" :grid "ContentAPI"} | |
(by :resource | |
(moving-time-window 300 | |
(combine riemann.folds/mean | |
(splitp < metric | |
200 (minor "Content API host search response time is slow" dedup-alert) | |
(normal "Content API host search response time is OK" dedup-alert))))))) | |
content-api-request-time | |
(where* (fn [e] (and (= (:grid e) "EC2") | |
(= (:environment e) "PROD") | |
(= (:cluster e) "contentapimq_eu-west-1") | |
(= (:service e) "gu_httprequests_application_time-Content-API"))) | |
(with {:event "ResponseTime" :group "Application" :grid "ContentAPI"} | |
(by :cluster | |
(moving-time-window 30 | |
(combine riemann.folds/mean | |
(adjust set-resource-from-cluster | |
(splitp < metric | |
300 (minor "Content API MQ cluster response time is slow" dedup-2-alert) | |
(normal "Content API MQ cluster response time is OK" dedup-2-alert)))))))) | |
content-api-request-rate | |
(where* (fn [e] (and (= (:grid e) "EC2") | |
(= (:environment e) "PROD") | |
(= (:cluster e) "contentapimq_eu-west-1") | |
(= (:service e) "gu_httprequests_application_rate-Content-API"))) | |
(with {:event "MQRequestRate" :group "Application" :grid "ContentAPI"} | |
(by :cluster | |
(fixed-time-window 15 | |
(combine riemann.folds/sum | |
(adjust set-resource-from-cluster | |
(splitp < metric | |
70 (normal "Content API MQ total request rate is OK" dedup-2-alert) | |
(minor "Content API MQ total request rate is low" dedup-2-alert))))))))] | |
(where (not (state "expired")) | |
; prn | |
boot-threshold | |
heartbeat | |
disk-max-util | |
puppet-last-run | |
puppet-resource-failed | |
last-gumetric-collection | |
fs-util | |
inode-util | |
swap-util | |
cpu-load-five | |
disk-io-util | |
r2-frontend-mode | |
mysql-slave-lag | |
ntp-offset | |
;content-api-host-item-request-time | |
;content-api-host-search-request-time | |
;content-api-request-time | |
;content-api-request-rate | |
)))) | |
(streams | |
(with {:metric 1 :host hostname :state "normal" :service "riemann events_sec"} | |
(rate 10 index graph)))) |