I am new to closure and trying to setup Riemann to monitor server resources and application events. I have a Riemann server setup and am trying to add a Riemann client, which will forward events to the Riemann server.
This is my Riemann client configuration file:
; -*- mode: clojure; -*-
; vim: filetype=clojure
(logging/init :file "/var/log/riemann/riemann.log")
(require 'riemann.client)
; Listen on the local interface over TCP (5555), UDP (5555), and websockets (5556)
(let [host "0.0.0.0"]
(tcp-server :host host)
(udp-server :host host)
(ws-server :host host))
; Expire old events from the index.
(periodically-expire 10 {:keep-keys [:host, :service, :tags, :state, :description, :metric]})
(let [index (index)
downstream (batch 100 1/10
(async-queue! :agg { :queue-size 1e3
:core-pool-size 4
:max-pool-size 32}
(forward
(riemann.client/tcp-client :host "10.11.5.10"))))]
(streams ; Inbound events will be passed to these streams:
(default :ttl 60 ; Keep events in the index for 1 minute by default.
index
#(info %)
(where (service #"^riemann.*") ; Send any events with service starting with riemann downstream
downstream))))
Every time I try to start Riemann, I get the following exception printed to the logs:
ERROR [2016-05-17 14:58:58,118] main - riemann.bin - Couldn't start
clojure.lang.ArityException: Wrong number of args (3) passed to: client$batch
at clojure.lang.AFn.throwArity(AFn.java:437)
at clojure.lang.AFn.invoke(AFn.java:47)
at riemann.config$eval36.invoke(riemann.config:23)
at clojure.lang.Compiler.eval(Compiler.java:6619)
at clojure.lang.Compiler.load(Compiler.java:7064)
at clojure.lang.Compiler.loadFile(Compiler.java:7020)
at clojure.lang.RT$3.invoke(RT.java:318)
at riemann.config$include.invoke(config.clj:285)
at riemann.bin$_main.doInvoke(bin.clj:61)
at clojure.lang.RestFn.applyTo(RestFn.java:137)
at riemann.bin.main(Unknown Source)
I lifted this configuration file (almost verbatim) from pg. 93 of The Art of Monitoring by James Turnbull. So I am confused what I could have done wrong. Can someone help me to understand why this configuration file is throwing a wrong number of args error?
Thanks
Your installed version of Riemann is ancient, you need 0.2.11+ to have a good time following that guide.
You can get the rpm at http://riemann.io