Discussions

News: Jolokia - JMX on Capsaicin

  1. Jolokia - JMX on Capsaicin (3 messages)

    Jolokia is a solution for remote JMX access. It is agent based approach, living side by side with JSR- 160 connectors, but uses the much more open HTTP for its transport business where the data payload is serialized in JSON. This opens a whole new world for non-Java clients. Beside this protocol switch, Jolokia provides features for JMX remoting, which are not available for JSR-160 connectors: 

    • Bulk requests allow for multiple JMX operations with a single remoteserver roundtrip. 
    • A fine grained security mechanism can restrict the JMX  access on specific JMX operations. 
    • A JSR-160 proxy mode allows for agentless operation.
    • Historical values can be tracked on the agent side. This enables  incremental checks without the need of a client side storage.
    • All MBeanServer are merged to give a single view, so there is no  need to know the MBeanServer instance in advance.
    • Sophisticated JSON object serialization allows clients to access  complex objects which are not Open MBeans.
    • Client bindings exists for Perl and Java, more are in the pipeline  (i.e. JavaScript and Scala).

    Multiple agents are provided for different environments:

    • WAR Agent for deployment as web application in a JEE Server.
    • OSGi Agent for deployment in an OSGi container. This agent is packaged as a bundle and comes in two flavors (minimal, all-in-one).
    • Mule Agent for usage within a Mule ESB
    • JVM JDK6 Agent which can be used with any Oracle/Sun JVM, Version

    Jolokia originates from jmx4perl, which is a solution for connecting non-Java monitoring platforms like Nagios to the JEE world. With jmx4perl comes a sophisticated command line shell, j4psh, with syntax highlighting and context sensitive command line completion on MBean names and attributes/operations (but that is another story ;-)

    Jolokia is released under the Apache License, which is currently the most significant difference to the agent part of jmx4perl (which is released under the GPL).
     

    Threaded Messages (3)

  2. Site-Link[ Go to top ]

    The top leve link has been mangled up to point to this article itself. The proper URL for Jolokia is http://www.jolokia.org

  3. Site-Link[ Go to top ]

    Thanks! Great project.

    Is there a good web console (or even a standalone one) for JMX which can use Capsaicin?

  4. Jolokia Console[ Go to top ]

    Currently we don't have web-console for Jolokia, but something like this is definitely on the list as soon has we have the JavaScript client binding ready. Don't know whether we will do a whole webapp or provided some prefactored widgets for certain JS frameworks, though.

    If you don't insist on a web-console, I highly recommend jp4sh which is a command line console with a unix style interface (you 'cd' into MBeans, list the attributes/commands with 'ls' and read attribute values with 'cat') and a nice readline interface (+ syntax highlighting). On Jolokia's tutorial page is a sample screenshot of j4ps as well as some installation instructions.