zoka / ringmon Goto Github PK

I get this stack trace:

org.codehaus.jackson.JsonGenerationException: Cannot JSON encode object of class: class javax.management.ObjectName: java.lang:type=OperatingSystem
at ringmon.json$generate.invoke(json.clj:212)
at ringmon.json$generate.invoke(json.clj:179)
at ringmon.json$generate.invoke(json.clj:179)
at ringmon.json$generate.invoke(json.clj:179)
at ringmon.json$generate_string.doInvoke(json.clj:224)
at clojure.lang.RestFn.invoke(RestFn.java:410)
at ringmon.monitor$ajax.invoke(monitor.clj:190)
at ringmon.monitor$wrap_ajax$fn__3400.invoke(monitor.clj:225)
at ringmon.monitor$wrap_gzip$fn__3377.invoke(monitor.clj:102)
at ringmon.cookies$noir_cookies$fn__2824.invoke(cookies.clj:39)
at ring.middleware.cookies$wrap_cookies$fn__2817.invoke(cookies.clj:150)
at ring.middleware.params$wrap_params$fn__2240.invoke(params.clj:76)
at ring.adapter.jetty$proxy_handler$fn__3517.invoke(jetty.clj:16)
at ring.adapter.jetty.proxy$org.mortbay.jetty.handler.AbstractHandler$0.handle(Unknown Source)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:926)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

Hi

Thanks for having a look at ringmon.
I have not experienced such an issue both on OS X and when deployed in a Heroku dyno.

In what context have you got this exception?
What happens if you run ringmon standalone within its project as:
lein2 :local-repl true ?

The only problem I used to have with JMX data was caused by a deficiency (in my opinion) within
the clojure/java.jmx as discussed here

That is why I excluded :AllThreadIds from "java.lang:type=Threading" mbean before
it was passed to JSON encoder. Conversion of JMX values for other JMX data that ringmon uses
always worked fine, both for clj-json and cheshire. The ringmon now has embedded cherry picked
cheshire 3.0.0 and depends on [org.codehaus.jackson/jackson-core-asl "1.5.0"]
I did it since I needed the cheshire to be able to parse project.clj, and the cheshire as packaged
(depends on much newer jackson) was then conflicting with noir 2.1 that uses clj-json that also
uses jackson 1.5.0 ...

Regards Zoka