obohrer

### Keybase proof

I hereby claim:

  * I am obohrer on github.
  * I am oliverro (https://keybase.io/oliverro) on keybase.
  * I have a public key ASAA6_YvLOeP4WeTz6NQCW2t2U02p0bg2N_9zpGAmWtx6Ao

To claim this, I am signing this object:

obohrer

(import 'org.apache.activemq.camel.component.ActiveMQComponent)

...

(defn- ^String activemq-source-path
  [{:keys [user password broker-url topic] :as consumer-config}]
  (format "activemq:topic:%s?username=%s&password=%s"
          topic
          user
          password))

obohrer

(ns clj-demo.core
  (:require [cheshire.core :as json]))

(foo :toto)

(defn factoriel
  [n]
  (->> n range (map inc) (reduce *)))

(factoriel 3)

obohrer

Messages stored in 2.777 secs
Messages stored in 0.693 secs <-- one transaction sqlite3

obohrer

2013-10-08 10:28:39
Full thread dump Java HotSpot(TM) 64-Bit Server VM (20.1-b02 mixed mode):
"New I/O worker #9" prio=10 tid=0x000002a9f0180800 nid=0x75ba runnable [0x000002a9bb5a1000]
   java.lang.Thread.State: RUNNABLE
  at java.lang.StringBuilder.append(StringBuilder.java:119)
	at com.sun.net.ssl.internal.ssl.ProtocolVersion.valueOf(ProtocolVersion.java:93)
	at com.sun.net.ssl.internal.ssl.ProtocolVersion.valueOf(ProtocolVersion.java:105)
	at com.sun.net.ssl.internal.ssl.EngineInputRecord.bytesInCompletePacket(EngineInputRecord.java:89)
	at com.sun.net.ssl.internal.ssl.SSLEngineImpl.readNetRecord(SSLEngineImpl.java:798)
	at com.sun.net.ssl.internal.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:713)

obohrer

(require '[clojure.tools.logging :as log])
(import '(java.util.concurrent Executors))
(defn t [f expected nthreads niters]
  (let [pool  (Executors/newFixedThreadPool nthreads)
        tasks (map (fn [t]
                      (fn []
                        (dotimes [n niters]
                          (let [res (f)]
                            (when (not= res expected)
                              (log/info "Result is not expected : " res))))))

obohrer

#Heap dump
jmap -dump:format=b,file=heapdump.b pid

#Just stacktraces
jstack pid

obohrer

Server side :
-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.port=1099 -Djava.rmi.server.hostname=127.0.0.1 -Djava.rmi.server.useLocalHostname=true

Client side :
Forward port 1099 ==> ssh -L 1099:localhost:1099 username@serverip

Download this logging properties file : http://blogs.oracle.com/jmxetc/resource/logging.properties
start jconsole using the downloaded properties file :
$ jconsole -debug -J"-Djava.util.logging.config.file=logging.properties" localhost:1099